Appendix-A-exploreration-logsAPPENDIX A
Exploration Logs
GlVIU
GEOTECHNICAL,INC,
Mr,Randall Beny,HARRIS &ASSOCIATES
&111 Ram01l C(t1Iyo1l Storm Draifl Project,City ofR(t/lcllo Palos Verdes
APPENDIX A
GMU GEOTECHNICAL EXPLORATION PROCEDURES,
BORING LOGS,CONE PENETRATION TESTS,AND TEST PIT LOGS
Our exploration at the subject site consisted of three bucket auger borings,one hollow stem auger
boring,and two continuous core borings.The estimated locations of the borings are shown on
Plate 2.Our bucket auger and hollow stem auger borings were logged,and undisturbed samples
were taken using a 3.0~inch outside-diameter drive sampler which contains a 2.416-inch~dial11eter
brass sample sleeve 6 inches in length.In addition,blow counts recorded during sampling from the
drive sampler are shown on the drill hole logs.Standard Penetration Tests (SPT)were also taken in
hollow stem drill hole.Small bulk samples ofthe material were collected,and blow counts for each
SPT were recorded on the logs.Continuous core samples were collected in the core borings.The
logs of all GMU borings are contained in Appendix A-I and the Legend to Logs is presented as
Plate A-I.Logs of subsurface investigations performed by others are contained in Appendix A -2.
The geologic and engineering field descriptions and classifications that appear on these logs are
prepared according to Corps of Engineers and Bureau of Reclamation standards.Major soil
classifications arc prepared according to the Unified Soil Classification System as modified by
ASTM Standard No.2487,Since the description and classification that appeal'on the Log of Drill
Hole are intended to be that which most accurately describe a given interval of a drill hole
(frequently an interval of several feet),discrepancies do occur in the Unified Soil Classification
System nomenclature between that interval and a particular sample in that interval.For example,an
8-foot-thick interval in the Log of Drill Hole may be identified as silty sand (SM)while one sample
taken within the interval may have individually been identified as sandy silt (ML).This discrepancy
is frequently allowed to remain to emphasize the occurrence of local texLmal variations in the
interval.
The descriptive terminology of the logs is modified from current ASTM Standards to suit the
purposes of this study and is summarized as follows:
a.
b.
c,
Soil Type
Color
Moistme
"dry"
"damp"
"nlOisf'
"wet"
"saturated"
-per Legend to Logs
-at field moistlll'e
-(as estimated during drilling)
-some moisture but less than optimum for compaction
-neal'optimum
-above optimum
-containing free moisture
November 10,2010 A-I GMU Project 10-036-00
Mr.Randall Berry,HARRIS &ASSOCIATES
S(fl/Ramo1l CflIlY01l Storm Dmi1l Project,City ofRfmclfO Palos Verdes
d.Grain size -"fine:)"luedium"and "coarse"
e.Density (granular soils)-"loose,""medium dense"and "dense))
f.Consistency (cohesive soils)
"very soft"Thumb will penetrate soil more than 1 inch (25 mm).
"soff'Thumb will penetrate soil about 1 inch (25 mm).
"firm"Thumb will indent soil about 3 inch (5 mm).
"hard"Thumb will not indent soil but readily indented with thumbnail.
"very haJ.'d)'Thumbnail will not indent soil.
November 10,2010 A-2 GMU Project 10-036-00
APPENDIX A-I
GMU Geotechnical Boring Logs
..
Q):=
Q)
MAJOR DIVISIONS ...J (5 TYPICAL NAMES'0.
::3 .Q
E E>-(9 (f)
ow {[-Well Graded Gravels and Gravel-Sand Mixtures,
Clean Lime or No Fines.
GRAVELS Gravels r.=--==Poorly Graded Gravels and Gravel-Sand Mixtures
50%or More of GP ~:=-lillle or No Fines.~"""COARSE-GRAINEO SOILS Coarse Fracllon ~More Than 50%Retained Retained on Gravels OM Silty Gravels,Gravel-Sand-Slit Mixtures.
On No.200 Sieve No.4 Sieve With
Fines GC I~Clayey Gravels,Gravel-Sand-Clay Mixtures.
Based on The Material
Passing The 3-lnch SW Well Graded Sands and Gravelly Sands.Little or No Fines.(75mm)Sieve.Clean ., ,
SANDS Sands .',"
SP I't".Poorly Graded Sands and Gravelly Sands,lillie or No Fines.Rererence:More Than 50%.-,",.o.t.
ASTM Standard D2487 of Coarse Fraction
''1.'::1:'Passes :J'"No.4 Sieve Sands 8M I"."Silty Sands,Sand-Sill Mixtures.
With I'.'.
Fines 8e W:.Clayey Sands,Sand-Clay Mixtures.02
Ml I Inorganic Sills,Very Fine Sands.Rock Flour,Silty or
Clayey Fine Sands or Clayey Silts With Slight Plasticity.
FINE-GRAINEO SOILS SILTS AND CLAYS :Inorganic Clays of Low To Medium Plasticity.
50%or More Passe Liquid Limit Less Cl
I Gravelly Clays,Sandy Clays,Silly Clays,lean Clays.
The NO.200 Sieve Than 50%
Ol Organic Silts and Organic Silty Clays of Low Plasticity
Based on The Material
Passing The 3-lnch MH Inorganic Slits,Micaceous or Diatomaceous Fine Sandy
(75mm)Sieve.or Silty Soils,Elastic Sills.
SilTS AND ClAYS
CH %Inorganic Clays of High Plasticity,Fat Clays.Reference:Liquid Limit 50%
ASTM Standard D2487 or Greater ~O~,""Cl,,,0'Modl,m To High PI""o'y,0",,;,Sil~.
HIGHLY ORGANIC SOILS PT .-:-Peat and Other Highly Organic Soils.
ADDITIONAL TESTS SAMPLE SYMBOLS GEOLOGIC NOMENCLATURE
RS "Rupture Sulface
~"Groundwater
OS =Direct Shear
HY =Hydrometer Test
TC =Triaxial Compression Test
UC"Unconfined Compression
CN =Consolidation Test
(T)"Time Rate
EX"Expansion Test
CP =Compaction Test
PS"Particle Size Distribution
El"Expansion Index
SE"Sand Equivalent Test
AL"Alterberg Limits
FC"Chemical Tests
~=Resistance Value
SG "Specific Gravity
SU "Sulfates
CH"Chlorides
MR =Minimum Resistivity
pH
(N)"Natural Undisturbed Sample
(R)"Remolded Sample
Undisturbed Sample
(California Sample)
Undisturbed Sample
(Shelby Tube)
Bulk Sample
Unsuccessful
Sampling AUempt
SPTSampie
r-IDl Nuclear Density Tesll.!!J and Bag for Moisture
10,10 Blows ror 12-lnches Penelraijon
6/4:6 Blaws Per 4-lnches Penelra~on
P:Push
(13):Uncorrected B!ow C<>unls ("N'Values)
(or 12-lnches Penelration-Standard
PenelrationTesl(SPT)
B"Bedding
C"Contacl
J"Joint
S"Shear
F"Fracture
Fit =Faull
P13a·Log Exp (OH58-00)
GMU
GEOTECHNICAL,INC.
LEGEND TO LOGS
ASTM Designation:D 2487
(Based on Unified Soil Classification System)
Plate
x
Project:San Ramon Canyon
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00
Log of Drill Hole DH~1
Sheet 1 of 5
Date(s)6/16 _6116/10 Logged WAD
Drilled By ._
Drilling Drilling AI D '11'S • IMethodBucketAugerContractorroyrJInaervlces,nco
-----_....
Drill Rig EZ Bore Dlameter(s)30
Type of Hole,inches _._
Groundwater Depth N/A D Sampling Open drive sampler with 6-lnch
[E:l_~vatjonl,feet Metho~(s)_-=-sl",e-=-ev-=-e=--_
Remarks Refusal at 103 feeti Not downhole logged below 93 feet due to low oxygen lavers
Checked LBSBy ._.
Total Depth 103.0 feetofDrillHole.,",,-".-.
A~prox.Surface 146.0Eevalion,It MSL .-
Drill Hole Native,TampedBackfill...~,".'-
Driving Method KellyandDrop
GEOLOGICAL
CLASSIFICATION AND
DESCRIPTION
SOUTH SHORES LANDSLIDE (Qols)
Upper 5,1 feet of hole cased due to
fractured cherty siltstone and caving
ORIENTATION
DATA
ENGINEERING
CLASSIFICATION AND
DESCRIPTION
CLAYEY SILT (ML),gray,light brown to
brown,damp,hard to very hard
SAMPLE DATA TEST DATA
Jl ~
f-'R.
-'
(fJ w·~n::~n::f-~(!)r-::;)z z~0woZIIn!!;!E~Il.00-'~~:;)(lI::;;::;;00 -z >--o (I)«:;)LL 25~00 ~~Dw
(fJ zO ::;;u «f-
140 f-S
--
Intact remnant bedrock -large block of
remnant Altamira Shale member of
Monterey Formation;clayey siltstone with
Interbeds of siliceous siltstone,siliceous
siltstone beds up to 2 inches thick
Bedding on siliceous siltstone bed at 6 feet
Zone of siliceous sllls!one,3 feet thick,
fractured,well-bedded at 7 teet
B:N70W,10S
Becomes very firm to hard at5 feet 4800 36 72
135 -10 _._--Interbedded clayey siltstone,siltstone,
siliceous siltstone,moderately defined
bedding at 10 feet
B:N70W,105 -CLAVEYSICni-iL):-graytoIIQiifiirown,-L5
damp,very firm to hard
4800 41
I-siCf(ML[lirownTsilgray,-clamp;Ve-ry-----I-+----/--I---+-·-.-i--
hard -t---t----.I--+--+-+---..-
r-CLAVEYSILT(ML);broWri 'an'a-Ilghlgray,
damp to moist,very firm to hard
~
iO
~
fu
<tl
:5:::>
~130 15
i(
(!)
0
9
"''"9
0
'">wcrI:J:
0
Clayey siltstone interbedded with siliceous
siltstone,joints are randomly oriented,
infilled with gypsum,up to 1/8·inch thick at
12.5 feet
Interbedded clayey siltstone,siltstone,and J:N17E,74NW
siliceous siltstone,fractured and jointed;J:N5W,84E
two prominent joints with gypsum infilling,
up to 1/4·inch thick,at 15 feet
Moderately defined bedding at16.5 feet B:N87W,8S
-Siliceous siltstone zone,0.75 feet thick,
highly fractured,orange staining on joint
-and bedding surfaces,gypsum infilling up to
114-lnch thick at 17.5 feet
Interbedded siltstone and clayey siltstone at B:N58W,6SW
19 feet
Becomes light brown to brown at 12.5 feet
Becomes damp to moist at 15 feet
-
4800 60 64 Fe
GMU
GEOTECHNICAl.INC.
Drill Hole DH~1
Project:San Ramon Canyon
Project Location:25th Street,Rancho Palos Verdes
Project Number:10w036 wOO
Log of Drill Hole DH-1
Sheet 2 of 5
a:;SAMPLE DATA TEST DATA
J!!C)GEOLOGICAL ENGINEERINGza:;0 ..;fl 'tJ ...J...J n::~,e l:!~:l0J!!(.)CLASSIFICATION AND ORIENTATION CLASSIFICATION AND 1-":-i=:i s:w wo (!)~:::JZ z~0~DESCRIPTION DATA DESCRIPTION ...J ZI f-W E~
Bi
a-a-1O...J 5~(/)1-:::J(!)
Cl ~~lD -z ;>--o(/)
...J :::JIL ~~00 15~~l!!UJ 0 (!)(/)zO ~o
L 4 4600 44 75
Inlerbedded sllisione and siliceous
siltstone,gypsum infilling up 101M-inch
predomlnalely on bedding.rarely on jolnls,
well-defined bedding.dar\<brown staining
on bedding and joinls al22 feel
---------------~....-..
Siliceous siltstone bed,1-foollhick,al24 SILT (ML),gray,damp,very hard
feel
120 f-2S f---Bedding at 25 feet B:N74E,BS 'CLAYEYSILT(ML):graYandbrmvn....-.I.e 4800 40 75 os
moist,hard 10 very hard
B:N82W,9S
f---0..----------._.-----..._-
SI iceous sills tone zone,well defined beds SILT (ML),gray,damp,very hard
u~to 8-inches thick,gypsum Infilling along Using core bucket during drilling at 29 feetbEddingplanes,moderately fractured at
115''30 ...._-2!.5 feet ~-----------------f---_.-..-.
Si Islone,poorly defined bedding at 30 feet CLAYEY SILT (ML),gray and brown,
Si y clay bed,gypsum Infilling along joint moist,hard to very hard
Ih t crosses bed,bed is up to 3f4-lnch Too hard 10 sample al 30 feel
Ih ck,al 27 feel
In rease In density,difficuilio excavale at Becomes very hard at 32.5 feet
3\.5 feet
f--~---------_.----------
Clayey sillslone.massive,2-feellhick al CLAYEY SILT (ML),brown 10 orange
110 35 34.5 feel brown,damp to moist,hard to very hard [7 3350 24 62
f--~---------_...._----..~..1·-SILT (ML),gray and brown.molsl,hard to
very hard
Bedding a13B.5 feel B:N38E,4SE
105 40 [4 3350 43 79
1
Siliceous siltslone zone,6-inches Ihlck at Becomes very hard al43 feel
43 feel;below Is poorly defined bedding Becomes hard a143.5 feel
Subparallel joint set at 44 feet J:N18W.62SW
GMU Drill Hole DH-1
-------
GEOTECHNICAl,INC.
g?
w
'"l:o
Project:San Ramon Canyon Log of Drill Hole DH·1
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036·00 Sheet 3 of 5
"ai SAMPLE DATA TEST DATA
oS!(,9
GEOLOGICAL ENGINEERINGz"ai g £l ~'1J ..J
tJ)w-~0 oS!0 CLASSIFICATION AND ORIENTATION CLASSIFICATION AND n:?;n:~....<>:2~:i"J:~wo ~.....:::JZ z~0
DESCRIPTION DATA DESCRIPTION ZI ~~E~Ifj Ii:Q.Q.I:O..J -(9 =>(,9
~::;;::;;1:0 ~~~~OtJ)
...I W c,;:::Jl1.00 ow
W 0 (,9 20 :20 ~.....
L12 3350 28 105
f---~----------------I---f--Siliceous siltstone zone,moderately SILT (ML),gray,moist,very hard
fractured,open Joints up to 1f3-inch (may
f---be mechanical),lined with gypsum.
massive,zone Is 1-foot thick.below 46.5 "CLAYEY SI LTTML);-grayilnil'orange -
feet brown.moist.hard
Inferbedded siltstone,clayey siltstone with
moderately defined lamina lions at 47.5 feet
95 50 [8 3350 36 85
Clayey siltstone,massive,random gypsum Becomes grayish brown at 52 feel
Infilling at 52 teet
90 66 f---_.._--------------...
Siliceous siltstone zone,dark brown SILT (ML),gray and brown,moist,hard to
staIning on joint surfaces at 55 feet very hard
Too hard to sample at 55 feel
Very minor seepage on NE wall,along joint Becomes moist to wet at 58 feet
surfaces at 58 teet
.--------.....----------.....-...--
Bedding at 59.5 feet B:N79E,8S CLAYEY SILT (ML),gray and brown.
86 ""60 moist,hard to very hard [11 2045 44 99
I---
f~Fe
Discontinuous lenses of unoxidized material Becomes orange brown with dark bluish
up to 2-lnches thick,no bedding observed.gray at 63 feet
gypsum-filled veins up to 1/8-lnch thick 1._
below 63 feet
80--65 Too hard to sample at 65 feet
..
Increase in densi~,very difficult to Becomes very hard at 65.5 feet
excavate at 65.5 eet
f---I---1---.....-
Grading to unoxidized sills tone,no bedding sILT(MLf,"verydarkbrown.-moist,very-
observed.very finely laminated,slight hard
seepage along Joints,difficult 10 excavate Becomes very dark gray a167.5 feetIbelow66.5 feet
Unoxidlzed clayey siltstone,massive,
random gypsum veins below 67.5 feel
Prominent joint at 69.5 feet J:N34W,84SW
GMU Drill Hole DH-1
GEOTECHNICAL.INC.
Project:San Ramon Canyon Log of Drill Hole DH-1
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00 Sheet 4 of 5
1ii SAMPLE DATA TEST DATA
$!Cl GEOLOGICAL ENGINEERING;i j 0 UJ 'Ji.'1J ..J..J «0 t.)CLASSIFICATION AND ORIENTATION CLASSIFICATION AND ~~a ll!r-:f-~2~:i X w ~~i=!2 z~0..J WO
[ij Ii:a.DESCRIPTION DATA DESCRIPTION n.OO..J -t?U)~~C)E~~~:;:00 ~~-2 >--Ow
..J W ~u..00 g;;'!~I!:!LU 0 t?20 :;:0
L15 2045 36 82
'--
Silts lone,massive,prominent joint al 73.5 J:N4W,87W ~feel
70 f-75 [16 2045 30 86 DS
Continues massive,difficult to excavale al Becomes dark bluish gray al 75.5 faat
75.5 feet
Becomes dark gray al 77.5 feel
66 80 Poorly defined bedding,very difficull to Too hard 10 sample al80 feel -
excavate 10 81.6 feel,used core bucket
during drilling at 80 feel
60 86 [23 2045 34 85
Finely laminaled,very difficult to excavale
below 86.5 feet
Bedding al 88.5 feel B:N70W,8S
55''90 Too hard 10 sample below 90 feel
I
End of downhole log due to lack of oxygen
in boring al93 feel
GMU Drill Hole DH-1
GEOTKHNICAl.INC.
o
i
Project:San Ramon Canyon Log of Drill Hole DH-1
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00 Sheet 5 of 5
~SAMPLE DATA TEST DATA
~GEOLOGICAL ENGINEERINGz~0 ,fl ;,'<
f-&
-'..J Cl::~l:!f-:"<t:0 ()CLASSIFICATION AND ORIENTATION CLASSIFICATION AND Zi=:i J:w wo ~f-:"::JZ z~0~DESCRIPTION DATA DESCRIPTION -'ZI f-W -Ill
Ii:0..a.aJ..J 512 !Q!z ::J~lsli;cz ::0 ::;00 irm..J w <&:::>LL l§~00 Ow
III C ~20 ::;u c~<t:f-
45 100
-_..._-_....-...•.-
I
GMU Drill Hole DH-1
GEOTECHNICAL,INC.
Project:San Ramon Canyon
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00
Log of Drill Hole DH-2
Sheet 1 of 3
63.0 feet
8~1~~)612~~~_._."'_".__'~_f-~-,~._gg_e_d__L_B_S --+---,~~,--e_c_ke_d-,--N_/A___..~.
Drilling Drilling AI 0 'II'S 'I Total DepthMethodBucketAugerContractorroyr'!ng ervlces,nco of Drill Hole-_._---.-__.-..-_._---------------+=---'------'------__'"".-
¥~leRig_::80r6__.•........-j--=-~f'_'J~_'_'~'--Te:..:.t~_"_f~_'_~h"_e'_'_s__3_0 -+-A'_E~_fv_r~_~o'_·~.:.:..u_'_'{(_'_'~_'_'~'_L_.._5_6~~_._..
Groundwater Depth N/A II Sampling Open drive sampler with 6·inch Drill Hole Native TampedJ~IEly~~jonJ,feet ..-.~~t~o~~L ___=s'--le:..:e'_'_v_=_e +-B_a'_c_"_kfl'__II=___'"
Remarks Refusal at 63 feet due to severe caving below 55 feet;not downhole logged below 55 feet ~~~j8~o~ethOd Kelly
SAMPLE DATA TEST DATA
di
$!(!)
GEOLOGICAL ENGINEERINGz1i)0 ~/-[-'-'~0 .l!!{)CLASSIFICATION AND ORIENTATION CLASSIFICATION AND ~ffi~~J-'"«
~z
5:(9 •~m z!i 0:I:~~~Ii:a.DESCRIPTION DATA DESCRIPTION 0.m-,::l(9 E~~:a;:a;m ~~-!Z >--OC/)
-'W «::l "-00 gj~~~w 0 (9 C/)2:0 :a;0
SOUTH SHORES LANDSLIDE (Qols)
Remnant blocks of bedrock,interbedded
cherty siltstone and slltstone with some
bentonitic tuff.scallered pockets of topsoil
and remolded clayey silt,abundant rootlets
below 0 feet
Bedding at 2 feet
CLAYEY SILT (ML),light gray to light
brown.dry to damp,soft to firm.locally
hard
B:N·S,32E
36 PS,HY,
AL,CP,
DS
655 '-6
Bedding at 8 feet
660 10
Poor sample,very disturbed.loose,rocky [..P
at 5 feet
B:N20W.26NE Increase in density during drilling at 8 feet
4800 39
4800 23 101
4800 42 68 DS
~
(!)
m:s
:Jr3 645 -15
~
CI
i
Grades to siltstone and bentonitic tuff,
jumbled and chaotic,no continuous
f---structure below 13 feet
Siliceous zone with minor interbedded
bentonitic tuff.bedding highly discontinuous
and folded below 14 feet
Bedding at 15 feet
f-Interbedded siliceous siltstone, siltstone,
and bentonilic tuff.some shearing along
B:N40W.34NE
Becomes light gray and orange brown,
damp to moist.firm at 13 feet
-SiCt(NfLf,"\'litilsome CLAY(Ci.f,"llghf --t--t--+---t--+--.-
gray and orange brown,damp,moist,firm
to hard
Increase In density,diffiCUlt drilling
between 17 and 19 feet
CLA"VEYSILr",ML):-··iightgraytolight--+-+--+--+--+-+--_.-..-
brown with orange brown,moist,firm to
GMU
GEOTECHNICAl,INC.
Drill Hole DH-2
Project:San Ramon Canyon Log of Drill Hole DH-2
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036·00 Sheet 2 of 3
.,SAMPLE DATA TEST DATA
$(!)
GEOLOGICAL ENGINEERINGZ1i>0 ~'tJ .J...J 11 .«0 $CJ CLASSIFICATION AND ORIENTATION CLASSIFICATION AND ~~w·I-~~~~z
:i :i:~~~z~0
~I-0..DESCRIPTION DATA DESCRIPTION a.lIJ9 5!2 (1)1-::I(!)E~a..~:a :a 00 -2 >--0(1)
...J W «::Ill.i§~00 ~~Ow
UJ a (!)(I)zo :ao «I-
bedding below 19 feet hard
Too hard to sample at20 feel
Bedding at 22 feet B:N2aW,37NE
635-25 f 2 4600 36
f---_.f-----------------1----..--Siliceous siltstone lone between 25.5 and B:N20W,27NE SILT (ML),gray,damp to moist,hard
27 feet
f--f----.-------..-------...-----
Sheared zone of predominately sills tone CLAYEY SILT (ML),light gray to light
and bentonltrc tuff fragments,jumbled,brown,dry to damp,firm to very firm
fractured.chaotic,no structure obseNed,
abundant orange and black staining below
27 feet
530--30 [3 3350 33 65 os
----
Remnant blocks of siliceous siltstone up to s[f(rvlL)."Wfthsonle CLAY---:-gray;il9ht-
2 feet long within sheared debris matrix,brm'm,orange brown,damp,firm to hard
very fractured,contorted,randomly oriented
626 f-35 fragments and blocks,between 33.5 and 39
feet 5 3350 29 61 PS,HY,
~3350 AL,CPo
FC,OS
Increase in density,begin using crowds t:---
during drilling at 37 feet
r--f-----.------------I----1--._---_....
Remnant fragments of bedrock,jumbled,CLAYEY SILT (ML).light gray to light
chaotic,highly sheared,no continuous brown,orange brown,damp to moist,firm
620 40 slructure,scallered open fractures,many to very firm [3 3350 23 76appeartobemechanical,below 39 feet
I
GMU Drill Hole DH-2
GEOTECHNICAl.INC.
a
i
Project:San Ramon Canyon Log of Drill Hole DH ..2
Project Location:25th Street.Rancho Palos Verdes
Project Number:10-036-00 Sheet 3 of 3
~SAMPLE DATA rEST DATA
z ~8 GEOLOGICAL ENGINEERING <Il ~1-&..J..J "0 0 CLASSIFICATION AND ORIENTATION CLASSIFICATION AND a:~:!3 !l:'..-:zj::::r:I ~~~~~z~0~DESCRIPTION DATA DESCRIPTION wo E~l-e..a.m..J >£1 ;:ICla.~:a :am -z )--OU)
iil w ";:Ill.gs~00 15~sn~0 Cl {J)zo :ao
Remnant blocks of siliceous siltstone up to SILT (ML),with some CLAY,gray,light l 3 3350 24 76
2 feet long withIn sheared debris matrix,brown,orange brown,damp,firm to hard
very fractured,contorted,randomly oriented
fragments and blocks,between 45 and 49
feet
General fabric or texture of debris trending J:N36W,84NEE-W and dipping 20 S at46 feet
Prominent joint set within remnant blocks of
siliceous sillstone,2 to 6-lnch spacing,at
47 feet
-_.._.-~_______--_••••••••0 •••••___"_.
Siliceous siltstone,Jumbled and chaotic,on B:N70W,43NE CLAYEY SILr (ML),light gray to light
NW wall Is block of relatively Intact partially brown and brown to dark brovm,damp,
5iG·60 oxidized clayey siltstone,block Is about very firm to hard 1-8 3350 28 772-feet wide and 2.5 feet wide,ragged
edges,bound by debris between 49 and
51.5 feet
f-----~----------------Moderate caving of siliceous siltstone SILT (ML),gray,damp,very firm to hard
blocks below 51.5 feet
606 56 Severe caving of siliceous siltstone blocks,Sample Is siliceous/diatomaceous and [3 3350 15 76
some diatomaceous siltstone in cuttings,rocky at 55 feet
hole belled out to about 5-feet diameter;not
downhole logged below 55 feet
SOG 1-60 [3350 25 67 DS
f-----~----------------I.-1-.....__.
Probable base of caving,cuttings are CLAYEY SILT (ML),gray to brown,damp
clayey siltstone,siltstone,bentonilic tuff and to moist,very firm
I---f";?me siHceous siltstone fragments,below I ......._-.-----~--~..
2 feet
I
GMU Drill Hole DH-2
GEOTECHNICAl.l~'C.
~
:co
Project:San Ramon Canyon
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00
Log of Drill Hole DH~3
Sheet 1 of 3
Date(s)6/29·6/30/10 Logged LBS Checked NIADrilledByBy-_..--,-'-.'.
Drilling Bucket Auger Drilling Alroy Drilling Services,Inc.Total Depth 60.0 feetMethodContractorofDrillHole
.--.'-..--
Drill Rig EZ Bore Diameter(s)30 A~prox.Surface 663.0Type...-of Hole,Inches E evallon,ft MSL ._----
Groundwater Depth N/A 0 Sampling Open drive sampler with 6·lnch Drill Hole Native,Tamped[Elevallon),feet Method(s)sleeve Backfill ----
Remarks Refusal at 60 feet due to severe cavIng below 53 feet;not downhole logged below 22 feet Driving Method KellyduetoseverecavIngandDrop
SAMPLE DATA TEST DATA
Q;
oS!8 GEOLOGICAL ENGINEERINGz1ii <I>::R.
....~..J...J O::~,g ll!;':..:0 oS!u CLASSIFICATION AND ORIENTATION CLASSIFICATION AND zi=:i i:w III 9 ~~~z z~0~DESCRIPTION DATA DESCRIPTION ..J (/)I!!-(/)....a.a.5!:2 ;:10 ~!iiwa.~:;;:;;lll _z &Ui...J W i7i ;:ILL gj~00 Oww00zo:;;u 03:..:....
ARTIFICIAL FILL (QaO SANDY CLAY (Cl),dark brown,orange
Upper 3.5 feet of hole cased due to caving mottled,dry to damp,firm
and rocky fill soils
660 -17 PS,HY,
Varl-colored fill soils from road grading,AL
abundant rock fragments to 8-lnches
diameter,no visible lifts observed below 3.5
--6 feet
2 4800 30
666 .-
10 [P 4800
660 Abundant siliceous siltstone fragments Abundant gravel,cobble,and
within fill soils up to 18-1nches diameter,boulder-sized rock fragments at13 feet
between 13 and 15 feet
....16 r 2 4800 34 72
Lower contact is diffuse and generally
.--.-~~orizontal at 16 feet f~---SANDYGLAY (el)with SilT (Ml),light
SOUTH SHORES LANDSLlDfnQols)brown with black,orange,and white
Soil matrix of sandy clay with abundant staining,damp,firm
siliceous siltstone fragments up to
12-inches diameter,abundant staining,
I -
645-.scattered small pockets of reddish orange
bentonitic tuff,weathered,sheared,no
conttnuous structure below 16 feet
Abundant siliceous siltstone fragments
~Fe
within landslide matrix,chaotic,no X
GMU Drill Hole DH~3
-~-
GEOTECHNICAl,II\'C.
o
~o
Project:San Ramon Canyon Log of Drill Hole DH-3
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00 Sheet 2 of 3
1ii SAMPLE DATA TEST DATA
.j!!CI
GEOLOGICAL ENGINEERINGz1ii0 ;p.I::~...J...J ~~......«a $!0 CLASSIFICATION AND ORIENTATION CLASSIFICATION AND ffi~j:::~!i z
:i"x ~::>z zl-a§:DESCRIPTION DATA DESCRIPTION 009 I-W ::>:1:E~l-n.a.~~!!?~>-12wa.12 ::;:::;:lll OC/)
...J W <Jl ::>l.L 15~00 !5~~~w 0 CI zo ::;:0
observed structure below 19 feet B:N20E,18SE I~1 4800 38 62 DS
Large block of siliceous siltstone on west
wall,moderately bedded,general remnant
bedding at20 feet
f-----Severe caving on west wall.belled out 'siLf(M'L)."gray,damp;-tiard - - - - '..
about 2 to 3 feet.within siliceous siltstone
640 zone,fractured,discontinuous layers and
lenses at 22 feet
Not downhole logged below 22 feet due to
severe caving
-25 f--1----_.--------.------[~--Blocks of Interbedded clayey siltstone.CLAYEY SILT (ML),light brown,yellow 2 4800 24 -84
bentonillc luff and siliceous siltstone within brown,light gray,damp,firm to very firm
landslide matrix.fractured,abundant brown with local hard areas
and orange staining,some shearing
observed In sample at 25 feet
636
30 [3 3350 28 81 DS
630
36 Increase In density,using crowds during Becomes light brown to light gray with [3 3350 36 63
drilling below 35 feet orange at35 feet
626-
'40 Increase in siliceous slUstone content.Becomes light gray,light brown,yellow [1 3350 37 72
siliceous fragments in sample are fractured.gray,firm at40 feet
fractures lined wilh brown staining,
randomly oriented at40 feet
I
620
GMlJ Drill Hole DH-3
GEOTECHNICAl,INC
a
I
Project:San Ramon Canyon
Project Location:26th Street,Rancho Palos Verdes
Project Number:10-036-00
Log of Drill Hole DH-3
Sheet 3 of 3
~SAMPLE DATA TEST DATA
$.!(!)GEOLOGICAL ENGINEERINGz·!9 11 ""'U -'
ll:~~~-0:0 C,)CLASSIFICATION AND ORIENTATION CLASSIFiCATION AND ....".:zi="X :c ~~g Cl"':z~0~DESCRIPTION DATA DESCRIPTION z:c j::(J)Ii:0-n.5S2 :::l(!)~::i;::i;co !Qz ;>o-ct;
-'w <&::}lL ~~00 ~~~~w a (!)zO ::i;u
Some gypsum Infilling In sample at 45 feet t 3 3350 43 70
615'.
....60 f---~------------_.-.._._.[Siliceous siltslone and sillslone.continued SILT (ML).gray,damp,firm 10 very firm 1 3350 41 66
fractured in sample at 60 feet
610 Siliceous siltstone.difficult drllllng,severe Becomes hard 10 very hard at 53 feet
caving due to fractured siliceous material;
inspection from surface indicates hole Is
belled oul between 5 and 7 feet;below 53
feet
f-66 e-
606
60 ._.._."........_--"......•-.
I
I
GMU Drill Hole DH-3
G~OTECHNICAI.INC.
Project:San Ramon Canyon
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00
Log of Drill Hole DH-4
Sheet 1 of 3
46.5 feet
Date{s)718/10 Logged LBS Checked N/A
I-D_n_'I1,---ed ..-I-B-'-Yc--___--t-:-B~Y .._
Drilling Hollow Starn Auger Drilling 2R Dr'lll"lng Inc Total DepthMelhod"Contracfor'•of Drill Hole1--------------_.._------+-----'---------~-----------
Drill Rig CME 75 Dlameter(sl 10 Approx.Surface 403 0
rT::!-y-'-pe'---:'---:'---:c--::--_____________of Hole,inches__Elevation,ft MSL •
Groundwater Depth NIA D Sampling Open drive sampler with 6-lnch Drill Hole Concrete Slurry
[Elevation],feet Method{s)sleeve/SPT Backfill-----_:':=--'--~---------+-----'-----'---
Remarks Driving Method Auto HammerandDrop
SAMPLE DATA TEST DATA
1ii
$I ~
Z 1ii 90$I C..l~:r::i:
~I-~n.
.J w
W 0 C!)
GEOLOGICAL
CLASSIFICATION AND
DESCRIPTION
RECENT ALLUVIUM (Qall
Upper 2 to 3 feet clast-supported material
with abundant subangular to subrounded
fragments of bedrock with minor sandy clay
50115
ORIENTATION
DATA
ENGINEERING
CLASSIFICATION AND
DESCRIPTION
CLAY (CUCH)with SAND,dark brown,
moist,soft
400 Debris from canyon mud and debris flows;
no structure,abundant bedrock fragments,
unconsolidated below 3 feet
Sample very disturbed at 2.5 feet .-10
I-
140 27
46 PS,HY,
At,Fe
f--5 Becomes da rk brown and orange brown at '\::(10)140
5 feet "'-
395-.
With scallered plant fragments,soft to
firm at 7.5 feet
140 36 83
10 ---CIAY (CUCH)wifh traCeSAND,dare -."'.;;;:1--';;(9')h 14",0c+--+----1----
brown,moist to wet,soft
~(38)140
1'>-",.
~
0
;;j
Q 390~..,
0-
C!)
ell:5
~::;1-16C)
~
C)
0
~'"q
~
With scattered bedrock fragments at 12.5 [26
feet
140 32 84 eN
~Xl 385"
Cl
G£OT£CHNICAl..ll\'C_
140 38 76 eN
Drill Hole DH-4
Project:San Ramon Canyon Log of Drill Hole DH~4
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00 Sheet 2 of 3
QJ SAMPLE DATA TEST DATA
$1 C)
GEOLOGICAL ENGINEERINGzj0 Xl *'U .J...J o::~l:!~<ie0CLASSIFICATIONANDORIENTATIONCLASSIFICATIONANDc~z~f x ~we elf-::::lw zl--0
DESCRIPTION DATA DESCRIPTION ZJ::::l~-VIa;0.0.m ....-(9 til--5ti~;;;::;;m ~~-z ~~...J W <%:::lU-00 ~~UJ a C)zo ::;;0
~'(9)140 35 PS.HY.
AL
I--
[26 140 40 74 eN
380
26 ~(9)140
-:-,,-
~
""-
I--
Poor sample,very disturbed a127.5 feet I-17 140 23
376
30 ~.(40)140
~..
f----'soUTH SHORES LANDSLIDE (Ools)SANDY SILT (ML),'orange brown,moist,
Remnant blocks of bedrock wilhin silly clay very firm,fine grained ~
matrix;blocks range from relalively intact to
highly disturbed below 31 feet
[Disturbed sample.soft,at 32.5 feet 49 140 29 81
370
1--36
Abrupt slgnlficanllrtcrease in densily
.--reported by driller a134.5 feel SANDYCIAYTcI);Wfth someSlLT,--..-(25)140%
reddish brown,orange brown.pale gray.-;--=:-.=..
moist,very firm ..
""'-
I-----'
[88 140 32 89
365-.35 83
f-40 he-(23)140~
~
........:...
I-'
I [42 140 42 80
360 34 80
GMU Drill Hole DH-4
GEOTECHNICAL INC.
Project:San Ramon Canyon
Project Location:25th Street,Rancho Palos Verdes
Project Number:10·036-00
Log of Drill Hole DH-4
Sheet 3 of 3
'Qi SAMPLE DATA TEST DATA
~C9 GEOLOGICAL ENGINEERINGZ1ii0 1Il ~'ti ..J...J o:~,E Wi-=~0 $u CLASSIFICATION AND ORIENTATION CLASSIFICATION AND ....,:~I 5:~~9 t!l ...."O:m z!i:0
DESCRIPTION DATA DESCRIPTION Z:J:~....E~~....0.0.5~:::Jl')
0.~::;;::;;00 ~Z :>0-°tll...J W i%:::Ju.~~00 ~~~~w 0 C9 zo ::;:u
8ecomes yellow brown to reddish brown "-(31)140
al45 feel ~
~~
---,_...__.._..
366
I
GMU Drill Hole DH-4
GEOTECHNICAL.II':C.
Project:San Ramon Canyon
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00
Log of Core Hole C M 1
Sheet 1 of 10
149.0 feet
_8_~:_~{_~)_,._06J~_2J_10 .........i----'~~'_g_ge_d W_A_D i_~"-'~'-e-c-ke_d ....._.._._.__L_B_S --1
Drilling Continuous Core Drilling Ruen Drilling,Inc.Total DepthMethodContractorofDrillHole--~-----..--J--=.-=..::-::--=-=-""--------------+----'---'---'------.-
_~~~~R~9__.._.~._._.....___.i_~~f'--'~~"--Jf'-'-~-"-pe.:..--H-Q-----------_+~-Fe-'--tv'-'-~"--~,-'~~l~~l ._l
Groundwater level Backfill S Inclination from 90
and Date Measured _..._._..._.--'-h_lrry LH_'__O'__'ri_zo_-'-n.~al/~~~ng _.--j
Comments
ROCK CORE
C "#.0 c:;e!o ::R+>£l!!0)'->.
III ci ci ~0 Ol
a';-a;0......Z Z ::l0 6 :J.~1l 0
Q)Q)8 -au.1B E "0m~a$!c ~0:J Q)~(D ~~::l ~
0::co 0::u.a.0::u.o z :s
0
1-
GEOLOGIC AND ENGINEERING
DESCRIPTION
SOUTH SHORES LANDSLIDE <aols)CLAYEY SilT (Cl);dark 1401
brown.rock fragments (Tma)up to 1"In diameter.moist,moderately
stiff
FIELD NOTES
AND LAB TESTS
2-
53 o
3-'---------.._-
4-
5---2 28 0
6-1
7-
f----
a 8-
;ij
§
13 9-Cl
:>3 38 13«I
:2
Cl..,n.10-Cl
a
C/
8
0
(!)11-I0..J1 -f-----f--
UJ
lr
0
()
12-
4 100 0
13
3/4"thick In diameter fragment ofTma --...-.-
Tma pieces:SHALE and SILICIOUS SANDSTONE;grey and tan in
matrix of SilTY CLAY {Cl);dark brown,moist,moderately sliff,
largest fragment is 2.5"
r-
I--
I--
rock fragments
1-----,1-------------------.----.....-.-----------\
matrix:SilTY CLAY (Cl);dark brown,minor Tma shale fragments up
to 3/4"in diameter,moist,stiff
-
I--
_same as above,gradational lower contact
Sllf'(CLAY/CLAYEY SilT (Cl);browll and tan,slightly moist,veiY-
firm,siltstone fragments up to 1/2"In diameter
1405 S-Hammer=26,R2
1424
1442
Project:San Ramon Canyon Log of Core Hole C-1
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00 Sheet 2 of 10
ROCK CORE
C ~0 'i:"0 ~~o ~Q).!:~.c-o 0 cDC)'->-E~FIELD NOTES(\)-0 g1 .....c (1)Ol GEOLOGIC AND ENGINEERING§31 g-Ol z z ~~c:i .g.-.c a i=•AND LAB TESTS
c ~~0 ~~E
(5 DESCRIPTION _2
w~Cl~::l CO'-:E '2&.....Ql .....::l
0:::Ol u.o.0:::u.Cl Z :.:J o~
13 1)5°irregular fracture along slltslone fragment
1 ........'"1
t-----'---'-_145214-SILTV CLAY (CL);gray,brown.and tan.slighlly moist,very firm
.
15-f--Irregular contact
SILTY CLAY (Cl);dark brown,slightly moist,very firm,orange to
brown rock fragments up to 1/2"In diameter
16-irregular contact
5 77 0
17-::::-
--........2 :2)15°ash beds?,CLAY ~Cl);orange brown,orange.white,slightly
::::::moist,very firm,tight,no nfiliing
18-1-~
19·.._---f-----f--highly fractured chert,less then 1/2"In diameter pieces
20-
21-..-
6 14 0
22--
23-2 _.
24-r--_..-.-f----1609
25-
7 0 0
26-
.----r--1525
I 27·
In the tip only:SilTV CLAY (Cl)with Siltstone fragments,tan,moist
8 0 0
28
29·
~a
--J
wcr::
8
25th Street,Rancho Palos Verdes
10-036-00
I~roject:San Ramon Canyon,
Project Location:
Project Number:
Log of Core Hole C-1
Sheet 3 of 10
ROCK CORE
c:#.'L:'0 ~'.;::;5 ~....~~g>1i>ij)QloC FIELD NOTES0ci0E¢!(Il ~.....0 GEOLOGIC AND ENGINEERING>....0.....Z Z ~~6 :::l.-.0 0 F -AND LAB TESTSCl)Cl)~~0 't)~E "0 -~w.s1 c ~u 0 DESCRIPTIONo~:::l ~~~~~:::l E 'Erl
n:'m n:'n:'u..O Z ..J o~
29 SIL TV CLAY (eL):brown and tan moUled,moist.very firm -1 33/07 2
CLAYEY SILT (CL);brown and grey to brown
1)20°S,no Infilling.light.siltstone,grey.hard
1----~-."..-....",,----.--.-------------------1
SILTSTONE (ML);grey,highly fractured (mechanical),hard,moIst
1----+--------------------_.-_0755
CLAYEY SILT (Cl):brown and grey mottled,no bedding
gypsum crystals up to 1/4"
30-9 100 0
t--.-.--.",--f--
31-~
2 1
32-
o -
.._---.._-------------------------j
S.Hammer=38,R2
-0842
2)15°S,subtle layering,tight
giLTSTONE;gray and brown,hard,subtle bedding,moist
S)5°S,tight.Indistinct
2)15'S.subtle bedding,light.no infilling.marked by color changes
subtle bedding,color changes brown and dark brown
1)5'S,infilled with gyp,0.1"thick
color changes to orange brown and grey
5}65'J.gyp infilling.0.1"thick,orange brown and black staining
6)15'J,gyp infilling 0.1"thick
~SILTSTONE;grey.very hard,massive -
7)65°J.gyp infilling 0.1"thick
_I-..highly fractured siltstone,grey
I:
..........._-,,----
CLAYEY SILT (CL);brown and orange brol'm,subtle bedding,hard.
slightly moist
L....-h SILTSTONE;grey with orange brown staining on /olnts.highly I~
r '(raclured .
ClAYEY"SICT(C[);mo\lled grey.orange brown.and brown.slightly
moist.hard,subtle bedding 5
o
.1)7'S,tight,no Infilling,orange brown staining
.2)20°J gyp Infilled.0.5"thick
I 3 '§J&B clay seam,0.15"thick,tighl,sticky t'=
EY"SrcrSTOJIlE;brown anOOf,i"ifgifljYoiyomoltfed;fiobeddlng J
-
22 i"-.observed,slightly moist.hard
1 "4 4)70'J,light.orange brown and black staining,no infilling
33-10 90
34--
I---
35 --
36-
37-11 100
38-
39-I----~.~~-
0
;ji 40-352~
l-e
C!l
~41-06::;:
C!l 12 88....
0-
<9
0~42-
'"9~
<9
0....J,43-
woc
0
0
I--44 f--f--I:o:::~~1
~2 1)55°J.gyp infilling to 0.05"
I=""2)11 °B.SUbtle,tight:§:SILTSTONE;grey,very hard,subtle bedding,black bedllense,
45-L_.L-.....L_.L----l._...J===:=·=-:::L.......L._.....L~g::..:ra=d=a\::::io.:.:.na=l...::c:.::ha=n~ge=_t.:.:o_=a-=C:..:L=_A:.:.Y.=E..:...Y...::S::..:IL:.:.T.::.ST.:.....O::..:N...:..:E~;~g::..:re"-y...:..:a.:.:.nd:...o=r=an-"'g:.:.e __---'-_.......L.-I
Project:San Ramon Canyon Log of Core Hole C-1
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00 Sheet 4 of 10
ROCK CORE
C ::R.0 'L:'0 ~~.....::R.CIloC~~ci 0 ID 0)1->.E¢:!FIELD NOTES-ci ~'-8 10::.c:CD Ol GEOLOGIC AND ENGINEERING>-0.......Z Z ~u.ci :::l._.0 0 !:.€AND LAB TESTSCI>CI>Q)CI>c:8 t);';E "0 DESCRIPTIONill~o~x ~~0 !II~:::l .c 1':('0:::l 0 Q.l ~0::a:l 0::0::Ito z ...J Cl~
45 ........brown,very subtle bedding,hard,slightly moist1
~1)12°B,no infilling,subtle
46-2 2)8°B,no infilling,tight,black staining on surface -
13 62 42 ~:.§SILTSTONE;grey,hard,interbedded with eLA YEY SILTSTONE,gray S.Hammer=38,R2
.'---.and orange brown
~~~
47-
48··~:-3)23°J,gypsum infilled up to 0.2",loose,fr,highly fractured3
...._-_.--f---i~:1 .0906
·1)r B,tight,no Infilling
49-i~;2~:.interbedded SILTSTONE;grey and brown gray,very hard,with clayey
~1 ·siltstone,dark brown,hard,slightly moist
50---.-'"-':'--"subtle horizontal bedding.~..-~-.2~".._-,--CLAYEY SILTSTONE;very dark brown,hard,subtle beddIng,rare
4 ~2 orange brown veins
51-14 94 15 2)0°V,g~sum,1.3"thick
CLAY to S LTV CLAY (C~right orange maUled with tan and yellow,
no bedding apparent,ran om gypsum veins,Irregular and
discontinuous,deformed,no regular bedding or jointing,very mottled
52-.--.-=-......",..3 3)8°B,subtle,finely laminated,light,no infilling
SILTSTONE,very dark brown,hard,subtle laminations
/4 f-4)34°J,gypsum infilling 0.2"thIck53-
--f----..
SILTSTONE;grr:/.and brown,interbedded hard and very hard 0921
54-~p 1
BENTONITE an GYPSUM;orange,pink,and white,slighty moist,
sticky,firm
r-----.-55°J,gyp.lnfilled,variable 0.1"to 0.4"thick,loose,
9 deformedfdlsturbed~2 SILTSTONE;dark brown and grey brol'm,hard to very hard
55-SILTSTONE;grey.very hard,massive...........3 9~<5°B,clay seam,tan to brown,sticky,0.2"to 0.3"thick
2 68°J,light,no Inmling,black and orange brown staInIng on surface
lJ4 3 5°B,no infilling.narrow
56-f-4)65°J,0.05"gypsum lnlilling,vary narrow,orange brown staIning
15 92 0 k 6)25°J,narrow,orange brown staining,no infilling
I--6
7 7)33°J,narrow,orange brown staining,no infilling
57-8
8)20°J,narrow,orange brown staining,no Infilling
~5 SILTSTONE;grey broym,becoming dark brown below clay seam
·5)10°B,clay seam,tan,sticky, 0.4"thick,soft
:subtle beddlng,hard,slightly moist
58-..
I--1--....f--
59-r---1 ..0935
I 8°B,gypsum infilling 0.2"thick
r---....Interbedded SILTSTONE;grey and dark brown,hard and very hard,
5 2 subtle bedding.light
60-...2)12°B,tight,CLAYEY SILTSTONE,finely laminated,subtle
I--3
·3)0°B,eLAY (eL)seam,brown,sticky,0.2"thick,soft,sllghtly moist
61
Project:San Ramon Canyon
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00
Log of Core Hole C-1
Sheet 5 of 10
ROCK CORE
c:'#.'L:',g £~~+-''#.IDOl ....>.Q).J::FIELD NOTESl1l+oJ 0 0 §....0 ....c Q)C)GEOLOGIC AND ENGINEERING E~a>~g.~z Z ;,0 ci :J._.a 0 F -AND LAB TESTSou.O~E -0 _.SliTI~o~<::X ~....a ~~:J 5 DESCRIPTION 'E&:J 0 &0:::co u.~0:::u.O Z 0 .......
61
16 98 45 ~4 4)8°B,tighl,no infilling
62-gradational change 10 SilTSTONE;lan,slightly moisl,hard,massive,S.Hammer=18,R1
minor very fine sand
63-1'--..5 5)65°J,narrow,no Infilling,irregular surface
5
64--f-------f-----interbedded SilTSTONE and CLAYEY SilTSTONE;orange brown,
brown and gray,slightly molsl,hard to very hard.
65 -r---~1)8°B,dark orange,clayey sill bed,Ughl~1
2
I.----'3 2)35°V,irregular,gypsum,<0.1"
CLAY hCl);orange and grey,mottled,deformed/dlslorted,slightly66V3moist,um
100 31 ~3)25·B,light,no Infilling
17
Irre~ular contacts:CLAY (el);brighl red,orange and white,sllcky,
67-slig tly moist,firm
I--4 4)20·B,tight,narrow
---5 5)15°B,light,narrow68-
r---5 Inlerbedded CLAY (Cll and SilTSTONE,no well defined bedding,
69-- -f--
irregular clay veins
I::::::1
SILTSTONE to CLAYEY SilTSTONE,brown and orange brown,1002
6 slightly moist,hard
-..,,-1)7·-12·B,clay seams,lan,0.1 to 0.4"Ihlck
.0"_..."-,
70-~,-,SilTV CLAYSTONE;tale tan,very firm,slightly sUcky"II~ht,0.7 to
'-,-"1.5"thick,interbedde with tan clay seams,0.1 10 0.4'th ck
.~---_._-.
71-::::::
.......-S.Hammer=10,R1t::::18 100 86 ----,--72-----.:
~r----::
73->~2)30·J,gyp,up 10 0.1"
.3)30°J,gyp up to 0.2"
.SILTSTONE;dark brown and gray,subtle bedding,hard 10 very hard
74--1--f--~-1113SilTSTONE,very dark brown,very hard,fraclured,rare gypsum veins
up to 0.05"thick,irregular
I--
I 75---
76-I-
7 r-..1 1)5·B,narrow.no infilling,orange brown staining
19 68 22
77 r--...
Project:San Ramon Canyon Log of Core Hole C-1
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00 Sheet 6 of 10
ROCK CORE
C ~
0 0 ';::'
~.c i6 @Q tfl.~OJ'">.<Il.t::FIELD NOTEScici~OJ GEOLOGIC AND ENGINEERING E¢!
>-~Q)z Z ::10 c:i ::I.E .2l 0 FCli"AND LAB TESTSQ)<!>8 t>u.o~E (5
[jJ~0$c x 0 5 DESCRIPTION =10::J a Q)~Qi e!e!::J "'0:;n::CO 0::u.Cl.0:;u.C1 Z o~
77 2 2~21·J,tight,no infillingV3340·J,tight,no infilling,oran~a brown stainin~on surface
SilTSTONE,gray and brown,ard,slightly mo st,subtle bedding
I---4
f-4)18°B,color changes:orange,black,orange brol'm beds <0.1"78-f:=:=4
4 thick,tight,otherwise bedding vary subtle
79-f--e-f--
""
SILTSTONE;grey and brown,highly fractured,very hard
7 1
20 89 0
1}60°J,no infilling
80-SILTSTONE;very dark brown,sUbtle bedding,hard,rare,Irregular
-
f=c:2
gypsum veins <0.1"thick
2)5°B,ligh\,orange brown,CLAYEY SILTSTONE,up to 1"thick,
f--r-----i--Irregular upper contact81-1149
~1 CLAYEY SILTSTONE;dark brown,slightly moist,very firm to hard,no
bedding observed
i'-1)5°B,CLAY (Cl)seam,brown up to 0.4"thick,irregular
82-2
----1
2)53·J,gypsum infilling,0.05"thick,orange brown staining
SILTSTONE and CLAYEY SILTSTONE;brown and grey,subtle
83 bedding,hard to very hard -
21 96 25
84-~3 --~3)12°B,subtle bedding,grey,orange brown,tan beds,~0.1"r../,-,.;..._-4 f-4)70·J,gypsum Infilling up to 0.05"thick,tight---85-
-f--f--SilTSTONE;dark brown,no bedding observed.highly fractured,1203
86-slightly molsl,hard to very hard
87-f--~1 f-1)45·J.gypsum infilling <0.05"thick,light
22 100 26 2 2)38·e,conlact with orange lan,clay,very sllff.slightly moist
I----3
88-3)highly irregular contact with Ian and yellow tan SILTY CLAY (Cl),
slightly mols!,hard,interbeds of brownish tan clay,Irregular,up to 0.4"
thick
89-t--f--[7 1 1)70°tight,gypsum Infilling up to 0.05"
r--2
90·2}irregular O·B,gypsum Infilling up to 0.3"
----......3 BENTONITE;orange and grey with lan,very firm,mottled/deformed,
_tight,light,no shearing,irregular lower contact (3)with a SILTSTONE;
.very dark brown,hl9hlli fractured,many discontmuous glPsum veins,
.up to 0.1"thick,no dis incl bedding to subtle bedding <B
I 91-.-
23 100 32
8 ~4 4)10·to 15°Irregular BENTONITE bed up to 0.5"thicl<.tan with92-orange mottling
I--h~ILTSTONE;dark brown,highly fractured,hard gypsum veins,;-:~~iscontjnuous
93 5 IL lSI ONE;ijfeyanCl dark grey,very hard,massive
Project:San Ramon Canyon
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00
Log of Core Hole C-1
Sheet 7 of 10
ROCK CORE
C cf,'C'a 6'15 £~o :;R >.Q)L:FIELD NOTES<i ci g!
0 ~Ol"'"Cl GEOLOGIC AND ENGINEERING E~
>-g.m z z :::)0 6 :J.£:1l 0 i=•AND LAB TESTS<!lID a oil.1):5:E 0 -~w-I!!o~c:~0 ~ffi a lIl~::l 5 DESCRIPTION '2&:J &a::co u.o.a::ttoz o~
93 5}15°B,subtle color changes observed to mark bedding~;6 50°J,trace of gypsum
7 65°J,traces of gypsum
CLAYSTONE and CLAY lens;distorted.clay lens up to 0.4"thick
94----'.'"'''',-----
8 Vi AL TAMIRA SHALE MEMBER OF THE MONTEREY FORMATION
(Tma)S.Hammer=34,R2SilTSTONE;grey,very hard,massive
95-Vi _1)26°B,tlgh!,no Infilling,bedding marked by subtle color changes
96-
I--
24 100 80
97-
98-~2 -
2)28°J,gypsum infilling up to 0.05"
99-I---1-SilTSTONE;tan and gray,hard to very hard,subtle bedding
--....1 1)14°B
--...2
100-~~
2)25°J.gypsum up 10 0.4"Ihick .-
9 3l20°B.colored beds.grey,orange brown,Ian.mark bedding
r---.::~5 30°J gypsum up 10 0.4"thick
101-r---~3 4)5°B CLAY (Cl)seam,brown/tan,0.2"thick -
4
25 90 32 V 6 6)20°J.gypsum up to 0.2"Ihick
102-SILTSTONE;dark brown,subtle bedding,slightly moist,hard .'
[-UV .._-..".Mottled grey,Ian and or~nge CLAYEY SIL TSTO~,E_
103-contact between oxidized (above)and unoxidized (below)bedding
SILTSTONE;dark grey,very hard.rare gypsum veins,up to 0.1"Ihick,
random
104-·,"f--I---
CLAYEY SILTSTONE;dark grey,slightly moIst,massive.rare gypsum '1254
veins up to 0.1",hard.slicky in areasr--.1 1)34°J.light105-.-
Interbeds of very hard SILTSTONE up 10 1"thick (2)
106-I--S.Hammer=32,R2
10 ~2
26 100 62 2)5°B,Inlerbedded very hard SILTSTONE
I 107-f-
108 mechanically fractured
109-
('J
9
woc
8
Project:San Ramon Canyon Log of Core Hole C-1
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036·00 Sheet 8 of 10
ROCK CORE
c:"#.'L:'~:5 ~~o ~IDOl'->.Cl)-C FIELD NOTEScici001E:i:!~'-r:::Q)GEOLOGIC AND ENGINEERING>....goa:;Z Z :JO ci :h-.0 0 !:.i AND LAB TESTSQ)Q)0 ou.o~E "5
UJ$r:::~0 c DESCRIPTION0$::J Q)~~~~::J E 'E&.~ca ~u.o.lr:u.O Z -l o~
109 '"1
1)43°J,no Infilling
V 2 2)50·J,no Infilling,sllghlly wavy surface,narrow
110-SILTSTONE;very dark grey,very hard,laminated,highly fractured
10 ~3
111-27 98 10 ~3)24·B,grey beds up to 0.1"lhlck,lamlnated
112-..
,CLAYEY SILTSTONE;very dark grey,Interbedded with very hard,
:dark grey SILTSTONE,highly fractured
113-f--f---
1328
114-~1 1)6·B,grey beds up to 0.1"thick,laminated
115
28 92 0 ~116-..-"::::::'::::..-.:2 2)10·B,subtle bedding marked by lighter and dark grey
117-CLAYEY SILTSTONE;very dark gre~,minor discontinuous gypsum
veins up to 0.1 ",highly fractured,no eddlng observed
118-f-
r--,-r--~1 SILTSTONE:dark grey and grey Interbedded,beds up to 1"thick,1348
moderate discontinuous fractures
119-',,':3 1)17·B
-,
:::~:::Minor interbeds of grey CLAYEY SILTSTONE up to 0.75"lhick"::
120-11 ~1~Very light,few fractures,very consIstent bedding'"
.~"
121-29 100 52 -'.
-',-
.~S.Hammer-38,R2
I '.
...---....122-....-....-,-
--..•..-.'-.
123·--......l-I r----,..,r-----::
I--r--"'-t:::-1 :1)r B,very light,very consistent bedding,few fractures
124---,
'---.:
.~".............
---.......
125 ..
(')
9
w<roo
Project:San Ramon Canyon
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00
Log of Core Hole C-1
Sheet 9 of 10
ROCK CORE
'C'
~~FIELD NOTES
1=af AND LAB TESTS
~ro"""o~
GEOLOGIC AND ENGINEERING
DESCRIPTION
o 0z z
§~n::co
4l)Ol'">.
5.£1l g>
'03 E ~!!!~:::l ~
u.O Z :.J
125-+-----1f--.j---1--.j--+~-.----.,...-I-----+--------------------l---+---------j
I~
11
126-30 --100
127-
128-
37 ts
2
t'----_
~r---.-~3
f------".
more fracLured zone
50·J,tiaht,no infilling,wavy
3)22"B,very consistent bedding,beds <0.1"thick
abundant Mn staining on irregular joints,Mn staining Is very shiny may
be 0.05"thick,voId open to 0.4",lined with Mn
S.Hammer=16,R1
129-
130-31 14 o
-SILTSTONE;dark grey,very hard,very fractured,heavy Mn staining
on joint surfaces
Core caught in barrel and retrieve disturbed
1453
131-1405
._--o
133-
33
134-
12
100
'----1
t:::2
o ~2-0_..
I:::::::r----;2
1----2
SILTSTONE;very dark grey,hard,moist
1)8·B,clay seam,dark grey,0.4"thick,sticky,no shearing observed
2)18'B,interbedded SILTSTONE and fine grained SANDY
SILTSTONE.bedding very consistent,bedding planes cleave easily,
beds 0.5"to 2"thick
__0738
--
l--I--
135-
136-
34 100
137-
138-f--
SilTSTONE;very dark grey,very hard,interbedded with SANDY 0755
SILTSTONE and SILTY SANDSTONE,very fine grained,grey and
dark grey.Beds range from laminations to 1"thick and well defined
1)26"B
2)22"B
3)62°J,narrow,no infilling
4)73·F,offset 0.5",Irregular surface in filled with up to 0.2"clay gouge
6)43·J,tight
5)23·B
1)4·B clay seam
2)6"B clay seam
3)10·B clay seam
.'CLAY (Cl);bluIsh grey,sticky,moist,stiff
SILTSTONE;dark gray and bluish grey,scattered clay seams <0.05"
-.~.
~
1
22 ~2
'--.3
I---. -.._-f---141··l.-....L-L----l_...l..----l..._J.....l_.....L ...L..-----l -j
139+--f-----
140--35 13 83
Project:San Ramon Canyon
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00
Log of Core Hole C-1
Sheet 10 of 10
ROCK CORE
C ~0 'i:"0 ~~.c ~o *'C1)0)'->.<II.£:FIELD NOTES0d~01 GEOLOGIC AND ENGINEERING E~ai~-z -3&0 ....1::C1)0a.a;z ::l._..c Fa>AND LAB TESTSgt>~E "0tu~t3~c:x 0 :€DESCRIPTION --:::J a ~~~L:.:::J :C lG
0::a:l 0::u..a.0::u..o Z ...J De;.
141
SILTSTONE;dark grey,very hard,tight bedding,few joinls,scattered
SILTY SANDSTONE beds,fine grained
142-I-1)26°S,clay lined <»05"thick
..
~1
143-13 t--2 -
36 100 70
2)12°B,clay bed,0.4"thick,bluIsh grey,stiff,sticky
Bedding below clay bed opposite dip appears core rotated about 180°
144-V on clay -
3 f-3)24°S
~CLAYEY SILTSTONE;dark bluish grey,very hard,subtle bedding
5 5)22°S,SILTSTONE and SILTV SANDSTONE.dark grey brown
145-4 I-4)73°J,narrow,no infilling,very hard,tighl,well bedded
f--f--.-
SILTSTONE;very dark brownish grey.very hard,well bedded,beds 0846146-
1'-.1
generally <0.5"thick
1)16°S,very consistent bedding S.Hammer-22,Rl
147-1--.~1 -
37 100 25
14 ~1
148-f--
SIL TV SANDSTONE,dark brownish grey,fine grained,very hard,well
bedded
149 ....,.-.-.,-"-_..
0858
T.D.149
150·-
151·
152--
153·-
154
I 155--
156-
167
o
iii
Qo
9
~o
(.)
Project:San Ramon Canyon
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00
Log of Core Hole C-2
Sheet 1 of 7
LBS
103.8 feet
Date(s)51 Logged W'AD CheckedDrilled06/2 10 By"By----------+-':..<.--------------...-...--.-.-.-~'!--_____,_----------___l
Drilling Continuous Core Drilling Ruen Drilling,Inc.Total DepthI_M:c.:..:...etc..:.hoo::..::.-..--+-'c'-'o""n.::-tra""c""t0c:...r .____..of Drill Hole
Drill Rig Drill BII HQ Approx.Surface
Type Sizerrype Elevation,ft MSL1---'-''''--''-------_·-·_----------+-=='-----'-''-'-------...--_..-........-----+-;=~~~..:..:.:.::=-----------_1
Groundwater Level Backfill Slurry Inclination from 90
and Date Measure::..:d:...---"-.__..L:..:.HO=I.:::iz-=on~ta=U~B=ea:::r.:::in~g _1
Comments
ROCK CORE
C ~~0 ;::;gj .....~(1).1::.~.c ~~Q;>.FIELD NOTES00(1)......0 8'GEOLOGIC AND ENGINEERING E~&>Q;.....z >::>0 ci ~2Q......z B'~~AND LAB TESTS
ijJ~c3J!c:~8 tl LL
0
(5 DESCRIPTION::l &~......e!~::l £5 'Ell.a::CO LL~a::LLO Z :.:::i o~
0 AC pavement section,0.7'thick,aggregate up to 1"In asphalt 856
1--1-------------------.----.......-----.---....,
1-
2-1 2 0
3
4-+--f--f--
5-
6-
2 100 0
7-1
0 8-
iii -~Q
~
l-e 9-f--...._~~<.'J
;:>3 100 005:;;f---<.'J
~10--<9
0
'i'<D'"~
<9 11··
0--JIW 4 85 0ll:
0
0
12-
13-
ARTIFICIAL FILL (QaO
SANDY SILT (8M)and SILTY CLAY (CL)matrixwilh abundant gravel,.
rare rock fragments up to 6".Tan,slightly moist,very firm,gravel Is .
angular,no layering observed _:
matrix becomes brown and grey brown
-
-
S.Hammer=R2.44 In
SilicIous Siltstone chunk
Project:San Ramon Canyon
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00
Log of Core Hole C-2
Sheet 2 of 7
ROCK CORE
c:'#';:;'0 ~~o+:>:5 0 '#(l)OJ'->.~~FIELD NOTES(\]ci Q)...c (l)OJ GEOLOGIC AND ENGINEERING§ti g."Q)z z >:::lO ci ~.~~0 ~.l!i AND LAB TESTS
t:~8 t)LL
0 0 DESCRIPTIONwJ!!OJ!!:::l Q)(ilL.~~:::l J::.:ell!u:~;!:!a::III a::a::LLO Z ...J o~
13·-
---Abundant angular gravel in SILTV CLAY (CL)and SANDY SILT (SM)
.matrix.Matrix is gra~Sh brown,slightly moist.stiffl firm to moderately
14--.loose.No layering 0 served
15---
16-5 57 0 f---.-
17-f----
18-2 --
----f---RECENT LANDSLIDE DEBRIS ~QISr~
CLAYEY SILT lML)with SAND ~p~;oose,sllghlly moist,dark brown
19-CLAYEY SILT ML)with SAND SP ;dark brown,slightly moist,
medium firm,rare caliche,scattere angUlar rock fragments of
Monterey formation
20--
21-6 90 0 ~
22--
23-
f----_.-f--SANDY SILT (8M)with CLAY (CL);grey tan,moist,firm,abundant
24-rock fragments up to 3",roots and rootlets
1----_._--------_._------------._--
25-Gradually becomes tan,SANDY SILT (SM)minor CLAY (CL),very
f----
firm,abundant gravel fragments,scattered cobble size fragments,no
layering
26-7 92 0
I 27--3 --
2B-
._•.---j - -.1050
29-
l!l
9
l:!o
()
Project:San Ramon Canyon Log of Core Hole C-2
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00 Sheet 3 of 7
ROCK CORE
C ~'i:'0 ~I/)::Ii:~~:p £>-FIELD NOTES<'il a d ~l!?o 0 l!?g>ffi 0)GEOLOGIC AND ENGINEERING.....0 0a;Q;ara>z z ~~:1._.0 "0 i=-AND LAB TESTS
c (1 lH E DESCRIPTION _J!!
iIi.e1 o~::J ~Q)&:~~~::J .I::.'E CII;t!o~0::co 0::0::u.oz ....J
29
SANDY SILT (8M);tan,slightly moist.very firm,abundant gravel sized
30-rock fragments,rare rock fragments up to 6"
8 91 0
31-I-
S.Hammer:32,R2
32··I-
3
33-- -
--,.I-SANDY SILT (SM)and CLAYEY SILT (ML);tan,slightly moist,very
firm,abundant gravel sized rock fragments up to 6"
34-I-
35-I-
9 98 0
36-I-
-
37-
38---f--I-
1116
39-
............._....-
4 V 11--c-Jl ~~s.fu !::!igbll.P.Q!I~~~r:f..a~,~ll£.h.tlY.w.a~.cJIQ..s.!!1'!!!0J!s ___.../"
SOUTH SHORES LANDSLIDE IQols)
40-Distorted bentonite clay beds and lenses,orange,tan,and grey,
slightly moist.very stiff,waxy,highly Irregular
10 100 0 1--1----_......--------------------........
41·SANDY SILT (SM)and CLAYEY SILT (ML);tan and grey,slightly ..
moist,firm to very firm,abundant angular rock fragments
42·
43-I----~-".f--
I CLAYEY SILTSTONE;orange brown with grey mottling,slightly moist,
hard
44-I-Scattered black mottling,subtle distorted bedding,beds 0.1"thick to
0.5"thickVI
45
Project:San Ramon Canyon
Project Location:25th Street, Rancho Palos Verdes
Project Number:10·036-00
Log of Core Hole C-2
Sheet 4 of 7
ROCK CORE
c:';f?'L:'a c:;~o 'oR.(J)L:15 .ri ~g>.8 >.FIELD NOTES00~Cl GEOLOGIC AND ENGINEERING Eie>...~Ql z z E~ci :::1.-a ~ai"AND LAB TESTSQ)Q)a ti3 E (5
[jj~a~c ~(J ~Q;0 ro ~:::J 5 DESCRIPTION 'Em:::I Q)r:r:co r:r:u.o.r:r:U::O z Q~
45 1)Approximately 1°B on unduiatoIY/dlstorted bedding
11 86 0
46-f--
47-
48-f------I-,-
,
1-------,--------------_.._-------
BENTONITIC CLAY and altered ASH beds,Interbedded,soft
49-~1--=l sediment,deformation,clay beds up to 0.2"thick,orange,white.grey -
2 .en.Q~!a.n.g!!~O.\'{n_______________________/-:
1l approximately 7'to 10'B
SO-l-2 25 B
-SILTSTONE,CLAYEY SILTSTONE interbedded
12 92 0 3 Gray and orange brown.moist hard to very hard
51-5
'"3)7'B,very hard siltstone bed
4 4)55'J,orange brown and black staining,no Infilling,irregular
52-surface -
53-'--------_.-
SILTSTONE and CLAYEY SILTSTONE.tan and grey mottled,subtle
distorted bedding,minor black and orange brown stainIng,hard to very
.hard,very hard areas hIghly fractured
54--..
55-
t'---1
13 f---86 0 1)27'S,very hard SILTSTONE bed.0.4"thick
56·-
57-..
56-f---1-----I---SILTSTONE;tan,slightly moist,hard,grey mottles,interbeds of brown
6 1--1 and tan clay 0.3"to 0.6"thick,each bed has a slightly variable
thickness
I 59-~--~---_._----------------------
2 SILTSTONE;tan,highly fractured,very hard,black staining on joinl
60-1--surfaces,interbedded with clayey siltstone and sandy siltslone,grey,.r
~1---
h g~~'b~8'm';~%fiiiegThinea,greVaiidlan,Very nata,siJOlle --
3 h bedd~~.-iTii -SilrrCCAY"{CLT,ill iff IV ..-iSlll 0---'.....J ~14 96 31 ASH e ;paelan,,s g lymOls,ar
61
Project:San Ramon Canyon Log of Core Hole C-2
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00 Sheet 5 of 7
ROCK CORE
c:~'V0~~o ~>.QlJ::+>.c ~g>Q;FIELD NOTESI1lcici~0 OJ GEOLOGIC AND ENGINEERING E¢!.....§lm 0.....z Z ::l0 Q ::l._.0 0 F-AND LAB TESTSQlQ)c ~8 "tS LL
0 "tS3:E '0 DESCRIPTION _2
w.2!0.2!::l &~di e!~::l E :ceocr:co LLo.Cl::u.O Z -l Qff.
61
R 3)21°B
Finely bedded SILTSTONE and CLAYEY SILTSTONE,tan,brown and
62-~gray,very hard,consistent bedding
4
4)12°B
63--
f------",-f--1239
6 SILTSTONE,orange brown and grey,hard to very hard,poorly
64-defined bedding,sllghlly moist
65--
15 58 0
66··,...._,.1
.1)15°B
67---
68---
1-'-f------.1 SILTSTONE,tan,slightly moist,hard with brown clay interbeds up to
69-1---R0.5"thick I_
f--~-ill2~~Fo~gfay--;-ve/liarll,fraCTUiiia------,'------~___...____rt.!_....______...-------....
---.Finely bedded orange brown.tan,and gray.SILTSTONE,and
2 CLAYEY SILTSTONE70-~1WB -
3f--I-.'- - - - - -.-- - - - - ----- - - --.....- - ---
1/3)65°J
SANDSTONE,very fine grained,tan and grey.very hard,few Joints or
71-16 92 44 fractures,massive
Interbedded SILTSTONE,SANDY SILTSTONE,CLAYEY S.Hammer"16,R1SILTSTONE;tan,brown,orange brown.indistinct bedding,hard to
72-very hard,slightly moist -
7
73-
,--,-f--1-
74-
subtle bedding
r-..1 1)12°B
I 75-r---.2 2)18°B .'
SILTSTONE bed,gray,very hard
76·-I'--3 3)13°B
17 94 12 Contact with bright orange CLAY (CL),wa~,very sllft.slightly moist,
interbedded with grey brown and tan siltstone,deformed in clay
portion,highly fractured in siltstone portion
77··
Project:San Ramon Canyon Log of Core Hole C-2
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00 Sheet 6 of7
ROCK CORE
c:~';='0 ~15 ~o ~2!g>Qi >.Q)-C:FIELD NOTES.c 0 0 ~0 s>E~
>-15._z z 11~ci 11'-.0
GEOLOGIC AND ENGINEERING F -AND LAB TESTSQ)Q)Q)Q)8 <5 -.~.[ij~o~I::~0 ~~E DESCRIPTION~&~lii ....::J E 'E&!a::Cll u.a.a::u.O Z ...J Q~
77 """.4)63°J
78-7
1--'
f---.-f--
79-Bright orange clay with white mollling -1--~-------------_._------------
1---1
Interbedded SilTSTONE;gray and tan,hard to very hard,highly .h fractured and CLAY (el);brown,slightly moist,sticky,very stiff .1--1t~·~_____..______.______....______/
80·Orange,white,and gray mollled BENTONITE CLAY;slightly moist.-
.-~a~,--""eJ)l.~tiff.____..______..______.___~
SANDSTONE;very fine grained,massive,very hard
81-~18 98 24 2 2)78°J
1--.~-- - --....-- - --...---- - -..-.--- - - --_.-- -
82-SILTSTONE;grey and tan,very hard,slightly moist,sublle fine
ir--laminations iflterbedded with orange,grey,and white bentonite CLAY
3 ~Cl),slightly moist,very stiff,waxy8)18·B
83-
f---1---'133184-..BENTONITE CLAY;pale drey,lan,Dradle brown,wa"""very stiff,
tight,slightly moist,no be ding observe
85-
86-becomes crumbly
19 ~100 0
87-
88-
89-"""0.._-f--f-I-
SilTY CLAY (Cl)and CLAYEY SilT (Ml);tan and brown,rock
9 fragments up to 0.2",slightly moist,slightly sticky,no beddinj.
observed,very finn,no discernible bedding,layering,or gra ation,
90-scattered very hard sillstone,does not appear to be In place.No
Jointing or bedding.
I 91-
20 85 0
92 I-
93
Project:San Ramon Canyon Log of Core Hole C-2
Project Location:25th Street,Rancho Palos Verdes
Project Number:10-036-00 Sheet 7 of 7
ROCK CORE
c::~'L:'00~~o ~Q)-C:<=£>.FIELD NOTES<ll 0 ci j
0 @g>n;01 GEOLOGIC AND ENGINEERING E¢!
>-0.-Z Z ::>0 6 ::>.-.0 a i=<Il AND LAB TESTSCllCll8J!uu.-o3:E (5
W$c x co .....0 ~~::>§DESCRIPTION ~~::>a .....(])0::CO u.o.0::u.Cl Z o~
93
94 -_.-I----434
95-r--..5 f-
5)13"irregularfwavy contact,no striations observed
9
96-"'--.1 f-1)37"B SILTSTONE,~rey and dark grey,very hard,light,few Joints,
.-
21 86 36 ~~rarely broken along be ding planes
2)32°B
97-f--3)40'B
S.Hammer"54,R3
98-f-
1----~4 4)55'B
99-~1 SILTSTONE:tan,well defined,consistent bedding,slightly moist,very .-
f-hard,minor black staining on Joints
1)35'to 37°B
100·-
i'--
101-10 2 2)90'J -
22 96 27 ~
102-----........f--
----.....
103-~
~
...-....-.-.......---...-
104-1469
I
105-..
106-
j 107-
108-f--
109
(')g
~
8
APPENDIX A-2
Exploration by Others
Ehlert,1997
LOG OF BORING
PROJECT NO.
Project
BORING 1
P.N.3891-97 LOG NO._PA_G_E_1_o...:-1=.2_
2700 1/2 SAN RAMON DRIVE,RANCHO PALOS VERDES,CA
Logged by _----=D"'""L"'---_Date Observed ....:-_
Ground Elevation _
DESCRIPTION
MeUlod of Drilling 24"BUCKET AUGER
Location _------.::S:;.::E=E--=S:..:..IT~E.:....;P~L:;;..A.:.:..N~~-_
f~<!s:)G:RAPHII("
~LOGQ
o
1l:RRACEDEPOSIT&2.5 to 19.5 feet of depth
:material consists of dark brown silty alar mottled with
abundant anqu~ar rock fragment,abundant white ca11che staining,
fim and tight.
At 6.0 feet color changes to a light pale gray brown clayey silt
matrix containing sUb-rou~ded rook fragments to pebble and cobble
size,firm,tiqh~.
At 14.0 feet'material consists of pale gray brown olayey silt
matrix containing scattered sub-rounded pebble a~d cobble Bi~ed
rook fragments,very firm and tight.
At 18.0 feet start a gradational contact ~dth highly weathered
bedrock,contact consists of hard siliceous siltstone bOUlders that
are encased in a dark brown silty clay matrix.In place bedrock
occurs at a depth of 19.5'feet.
NATURAL BOIL:0 to 2.5 feet of depth
Natural soil consists of dark brown silty clay
containing scattered pebble.si~ed rock,.
fragments,firm,moist,gradational contact with'
underlying slope wash.
·
·I------I----------------------~-----=I20
·
·\
5 ··
·
,10 ·'.
·,·
·
15
··
·
25
·
30 •
BEDROCK:MONTEREY FORMATION,19.5 to 76.5
,feet of depth
Bedrock consists of light gray siliceous siltstone,well bedded,
firm,tight.
Bedding attitUde at 21.0 feet of'depth is N51W 28SW.
Bedrock consists of thinly layered cherty siltstone,green gray to
orange brown in color,bedding layers are 1/4 inch thick or less,
fish scales to 1/4 inch in diameter,very firm and tight.
Between 23 feet to 26 feet of depth bedrock consists of extremely
hard dolostone,ligh~gray in color,breaks our in bOUlder si~ed
blocks,coring required,wall bedded.
Bedding attitUde at 26 feet of depth is lf64W 29SW.
starting at 26 feet below dolostone layer bedrock consists of pale
brown,greenish brown,orange,brown siliceous siltstone,well
bedded,thinly bedded with beds on the order of 1/8 inch thick,
very tight,firm.
Bedding attitude at 30 feet of depth is N62W 27SW.
35
·
·
From 30.0 to 33.5 feet of depth siltstone becomes cherty,brittle.
very hard,well bedded,and jointed.
At 33.5 feet of depth bedrock changes back into a pale brown firm
siliceous siltstone,not cherty,firm,tight,well bedded.
Bedding attitude at 35.5 feet of depth is N55W 27SW.
40
KEITH W,EHlERT -ENGINEERING GEOlOGIST
..
BORING 1
PAGE 2 of 2·
Ground Elevation _
Dare Observed --_Logged by _----::D...c..L-----'_
PROJECT NO.
LOG OF BORING
P.N.3891-97 LOG NO.
Projecr .__-=2:.:..70.:..0.:......:.:.1I--.:2=-S:..:A.....:.:N_R_AM_O_N_D_R_IV_E.:.."_RA_N_C~H_O_PA_L_O_S_V_E_R_D_E_S,=-C_A _
Method of Drilling .24"BUCKET AUGER
Locarion.S_E_E,-S~.I_T_E_P_L.:...:A.:...:N _
::)~
S GRA~HIC
Q~LOG
40
DESCRIPTION
60-
·-
-
·
65
Bedrock consists of light gray to light yellow brown siltstone,
firm,tight,very well bedded with beds on the order of 1/8 inch
thick,scattered fish scales·to 1/4 inch in diameter.
Bedding attitude at 4~feet of depth is N56W 29SW.
Bedrock consists of the same pale orange brown to light gray
siliceous siltstone,firm tight,abundant fish scales,bedding is
well defined.
staring at 42.0 feet and 7.0 inches seepage is observed:around.
sides of boring,water appears ·to be percolating through bedding
layers and is dripping slowly dO~in side of boring..
Be~L~....0 feet and 4.0 inches to 44.0 feet 3.0 inches 1s a~.l!t;jt1L~~~~'dlight green to gray brown,cO~.MtMkfJ.s:l..!sGP.n.!;~uous~~l§~t2.9J!s't;lt~ite.<dllppd,n9'.,.p.al<M.!~_!""s.~j,t!g,.,·~U,~n~l1:9
we .-~~a~QepfR·of 44.0 feet,bentonitic materlaI Is dry and it
dPP~ar$that water is traveling along the top of the bentonitic
layer,but is not present in the lower portion of the bentonitic
layer.No"-.S~P-l!M<f\\!QJis",pol..i:!ilhed,,,s.J.,j,p"'su·r-f-a·ees7.obs'el:lv.ed,appears to
be somewhat jointed,bedding attitude at a dept~of 44.0 feet 3.0
~~~~~~is ~~r.~JSW and was taken at the base of the·bentonitio
Bedding attitude at 46.5 ~eet ~f depth is M60W 30SH.
Bedrock consists of light orange brown,pale gray siliceous
siitstone,locally cherty layers,no fish scales observed at this:
depth,very firm to locally hard,tight,thinly bed~ed~...
At 48.5 feet of depth bedrock becomes very cherty and brittle,
light o~ange broun,very hard,thinly bedded.At 50 feet of depth
bedrock changes back into pale orange gray siliceous siltstone.
Bedding attitude at 50 feet of depth is N54W 29SW.
Bedding attitude at 52 feet of depth is NS8W 40SW.
Between 50 and 52 feet of depth bedrock appears slightly folded and
is dipping steeper and more westerly than above..
Bedding attitude at 55.5 feet of depth is N82W 33SW.
70
Bedrock consists of pale orange gray brown siliceous siltstone,
firm,tight;well bedded,thinly bedded on the order of 1/8 inch
thick.
Bedding attitude at 61 feet of depth is NB7E 40SE.
Bedding attitude at 64 feet of depth is N75W 42SW.
A light gray dolostone layer starts at 64 feet and extends down to
66 feet of depth,this layer is extremely hard and required coring,
well bedded,blocky appearance.·
Bedding attitUde at 68 feet of depth is N56E 38SW.
75
·
Bedrock consists of light orange brown pale gray siliceous
siltstone,very firm,tight,well bedded.
Bedding attitude at 71 .feet of depth is N51W 46SW.
\Bedding attitude at 75 feet of depth is N54W 47SW.
80-
KBTH W.EHlERT -8'K:iINEERING GFOLOGIST
BORING 2
PAGE 1 of 1 '
DESCRIPTION
LOG OF.BORING
PROJECT NO.P.N.3891-97 LOG NO.
,Project 2700 1/2 SAN RAMON DRIVEl RANCHO PALOS VERDES,CA
Method of Drilling 24"BUCKET AUGER Ground Elevation ---"'--_
Location SEe SITE PLAN Logged by DL Date Observed ~_
p!.markS:)~~GRAPHIC
9JQ LOGQ
o
~~',1.0 to 2.5 feet of.depth "
Light brown to gray silty clay containing scattered angular rock
fragments with,white ,oaliche mottling,gradational,change into
bedrork,firm,tight.'.'
BBDROCK:MONTERE~FORMATION,2.5 to 30.0
feet of !=lepth
Upper portion of bedrock is highly weathered to 'a depth of 15.0
fee't,very hard,siliceous siltstone,bat7ite crystals 011 faoes of
b~drock",bedding is very poorly defined.'
Grades doWnward into less weathered bedrock that is pale gray
slli~us siltstone,very hard,tight,required coring...----~~._.~-...
NATURAL SOIL:0 to 1.0 feet of depth ,
\
\Natural'soil consists of dark brown silty clay
t---==---~containinq,scattered pebble sized rock
\
fragments,firm,%Doist,grl;dational contact with'
underlying s.lope wash.',,·
5
,',c
·
10 ·
•
I.
·
15 c
Bedding attitude at 16 feet of depth is N70W 20SI'I.
Bedding attitUde at 19 feet of depth is N54W 53SW.
·Bedding attitUde at 20 feet of depth is N47W 45SW.
20
'-
·
25 ·Bedding attitUde at 25 is N52W GOSW.feet of depth
·
Bedrock is very hard siliceous siltstone,light gray to light
orang~brown,coring was required for most of bo~in9 in bedrock.
Moderately well defineq bedding.
30 4-----1----------------------1
·
35 •
·
KBTH W.EHLERT -ENGINEERING GfOlOGIST
Ehlert,1998
t I./:0"130"120'110'"
®
BROWN SILTY CtAY
FILLING CRACKS
IDDI'10'
eD 8cl)lZoc~:'Ir-)rvI TO
JlliUiOUS SII..,S70N t!i'
()!Zt9/V(;6_t3~W'1/.WE~/....-/JcDl>(;7J S ;l..,sro..ve-.<>t»oS
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,
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---------
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---...11{N25°E
J~,'I
'-\:".\eN 30~CdI "}'lS4J"
I\J lS"°w...."3oos~
N j,,)6 WJ £..s-0.st.J
30'
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2.0'
rV?ft/'t..J/~"!~
::;--.
."-
NtlbOW,-2."t:lSLoJ
N-3SO'tAJ
2q~&-J
':tJ:>tII/f 7U~1/7;"'01<'..;'7J"112¢.l3 IUJw/ll SIt.ry e 1."1 y S C"1 m---'fC{)...~")'
RocK.Pte<q(;.-qfi1ClT!i /JO;::T,uOlsr I G"lIsny Exc-"I vr-;~W'rLf
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(!>.sLIDf;1){;"8/lIS",L.16J1T Xl/Zow/ll TO "PiN l.3/ttCC/'9?7i7J
JlLrS7?J/lJe)t913lotl()"'INT t9N6tn~120C/e .?a,.,G-'W€N1;>.
R'IN61:V6'~Ao1.pe 138'/0 ,TO :J104'L[)C7'(..f/2~1 STII'-F,..1't.,N""y,
IIGFlII/~Y (,'1<"1<-17",olro I S<tGH-ny .<-10/~7.,seue>.4-L ;C,•.r~
t:'"//e..J win.7)ql2.l./.81loWN CLI'l Y (50/<')4I.3wNIJ"lNT
'"/I<£or 0 IIINA,.
10'
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SCALE:1"=10'SKETCH LOG OF TRENCH 1 BY EHLERT,1998 P.N.,3844-98
APPENDIX B
GMU Geotechnical Laboratory Test Results
GMU
GEOTECHNICAL,INC.
Mr.Randall Berry,HARRIS &ASSOCIATES
Stili RUIIIOII C{lIIYOII Storm Dr{l;"Project,City ofRtlllcllO P{llos Verdes
API>ENDIXB
GEOTECHNICAL LABORATORY PROCEDURES AND TEST RESULTS
Moisture and Density.Field moisture content and in-place density were determined for each 6-inch
sample sleeve of undisturbed soil material obtained from the drill holes.The field moisture content
was determined in general accordance with ASTM Test Method D 2216 by obtaining one-halfthe
moisture sample from each end of the 6-inch sleeve.The in-place dly density of the sample was
determined by using the wet weight of the entire sample.
At the same time the field moisture content and in-place density were detel1uined,the soil material at
each end ofthe sleeve was classified according to the Unified Soil Classification System.The results
of the field moisture content and in-place density determinations are presented on the right-hand
coh.lmn of the Log of Drill Hole and are summarized on Table B-1.The results of the visual
classifications were used for general reference.
l>article Size Distribution.As part of the engineering classification ofthe materials underlying the
site,samples were tested to determine the distribution of the particle sizes.The distribution was
determined in general accordance with ASTM Test Method D 422 using u.s.Standard Sieve
Openings 311
,1.5 11
,3/4,3/8 and U.S.Standard Sieve Nos.4,10,20,40,60,100,and 200.In
addition,on some samples a standard hydrometer test was also performed to determine the
distribution ofparticle sizes passing the No.200 sieve (Le.,silt and Clay-size particles).The results
of the tests are contained in Appendix B.Key distribution categories (%gravel;%sand,etc.)are
contained on Table B-1.
Atterberg Limits.As prot ofthe engineering classification of the soil underlying the site,samples
of the on-site soil materials were tested to determine relative plasticity.This relative plasticity is
based on the Atterberg limits determined in general accordance with ASTM Test Method D 4318.
The results of this test are contained in Appendix B and also Table B-1.
Chemical Tests.The corrosion potential of typical on-site materials under long-term contact with
both metal and concrete was determined by chemical and electrical resistance tests.The soluble
sulfate test for potential concrete corrosion was performed in general accordance with California Test
Method 417,the minimum resistivity tests for potential metal corrosion were performed in general
accordance with California Test Method 643,and the concentration of soluble chlorides was
determined in general accordance with California Test Method 422.The results of these tests are
contained in Appendix B and also Table B-1.
November 10,2010 8-1 GMU Project 10-036-00
Mr,Randall Berry,HARRIS &ASSOCIATES
Srm Ram01l OIllYOII Storm Dml1l Project,City ofRa1lcho Palos Verdes
Compaction Tests.A bulk sample representative ofthe underlying on-site materials was tested to
determine the maximum dry density and optimum moisture content of the soiL These compactivc
characteristics were determined in general accordance with ASTM Test Method D 1557.The results
of this test are contained in Appendix B and also Table B-1.
Consolidation Tests.The one-dimensional consolidation prope11ies of "undisturbed"samples were
evaluated in general accordance with the provisions of ASTM Test Method D 2435.Sample
diameter was 2.421 inches and sample height was 1.00 inch.Water was added during the test at
various normal loads to evaluate the potential for hydro-collapse and to produce saturation during the
rcmainder of the testing.Consolidation readings were taken regularly during each load increment
until the change in sample height was less than approximately 0.0001 inch over a two-hour period.
The graphic presentation of consolidation data is a representation of volume change in change in
axial load.In addition,time rate tests were performed for select samples.The results of these tests
are contained in Appendix B.
Direct Shear Sh'Cllgth Tests.Direct shear tests were performed on typical on-site materials.The
general philosophy and procedure of the tests were in accord with ASTM Test Method D 3080 -
"Direct Shear Tests for Soils Under Consolidated Drained Conditions",
The tests are single shear tests and are performed using a sample diameter of 2.421 inches and a
height of 1.00 inch.The normal load is applied by a vertical dead load system.A constant rate of
strain is applied to the upper one-halfof the sample until failure occurs.Shear stress is monitored by
a strain gauge-type precision load cell and deflection is measured with a digital dial indicator.This
data is transferred electronically to data acquisition software which plots shear strength vs.
deflection.The shear strength plots are then interpreted to determine either peak or ultimate shear
strengths.Residual strengths were obtained through multiple shear box reversals.A strain rate
compatible with the grain size distribution of the soils was utilized.The interpreted results of these
tests are shown in Appendix B,
November 10,2010 B-2 GMU Project 10-036-00
TABLE B·1
SUMMARY OF SOIL LABORATORY DATA
Sample Information Sieve/Hydrometer AtlerlJerg Limits Compaction Chemical Test Results
In Situ In Situ In Situ Maximum Optimum ExpansIonBoringDepth,Elevation GeologIc USCS Waler Dry UnIt Satur-Gravel ,Sand,<#200,<21/,LL PL PI R.value Min.Dry Unll WatQr Index Sulfale Chloride ReslstlvlljNumberfeetfeetUnitGroupContentWeIght,ation,%%%%WeIght,Conlent,pH (ppm)(ppm)
Symbol %pef %pGf %(ohm/em)
DH·1 5 140.0 Qols ML 36.0 72 74
DH-1 10 135.0 Qols ML 41.4
DH-1 15 130.0 Qols ML 59.7 64 99 6 430 160 360
DH-1 20 125.0 Qols ML 43.9 75 97
DH·1 25 120.0 Qols ML 39.8 75 87
DH·1 35 110.0 Qols ML 24.3 82 64
DH·1 40 105.0 Qols ML 42.9 79 105
DH-1 45 100.0 Qols ML 28.2 105 131
DH·1 50 95.0 Qols ML 35.5 85 99
DH·1 60 85.0 Qols ML 44.3 99 173
0a;DH-1 62 83.0 Qols ML 7 563 390 1701jj
I-DH-1 70 75.0 Qols ML 35.8 62 93Cl
G
DH-1~75 70.0 Qols ML 29.9 66 65
~DH·1 85 60.0 Qols ML 33.7 85 93
'"DH·2 1 559.0 Qols 8M 36.3 9 42 49 17 76 46 30 77.0 37.0«
(,)z DH·2 5 555.0 Qols ML 39.0tL
~DH·2 10 550.0 Qols ML 23.0 101 96Cl
~DH-2 15 545.0 Qols ML 41.5 68 78
'"~DH·2 25 535.0 Qols ML 37.9
;5 DH-2 30 530.0 Qols ML 33.1 65 57;§
(tJ1 DH·2 35 525.0 Qols ML 28.9 81 73 12 29 60 26 72 48 24 87.8 28.0 7.8 4 230 3005
.J'DH-2 40 520.0 Qols ML 22.6 78 53is
tQ1 DH·2 45 515.0 0015 ML 24.0 76 5311I
...J
OJ
DH-2 50 28.1r:!510.0 Qols ML 77 64
'jl
DH·2 55 505.0 Qols ML 15.2 76 34:;;
i.?
Project:San Ramon CanyonBGMUProjectNo.10-036-00
f~:·t:~,t~;~GEOTECHNICAL.INC.
TABLE B-1
SUMMARY OF SOIL LABORATORY DATA
Sample Information SIeve/Hydrometer Atterberg Limits Compaction Chemical Test Results
In SItu In Situ In Situ Maximum Optlmum ExpansionBoringDepth,Elevation Geologic USCS Water Dry Unit Satur-Gravel,Sand,<#200,<21.1,lL PL PI R·Value Sulfate Chloride Min.Dry Unit Water Index ReslsUvltJNumberfeetfeetUnitGroupContentWeight,atlon,%%%%Weight,Content,pH {ppm I (ppm)
Symbol %pef %pef %(ohm/em)
DH-2 60 500.0 Ools Ml 24.6 67 44
DH·3 3 660.0 Qaf CH 16.6 20 2 78 36 83 36 47
DH-3 5 658.0 Qaf CL 29.9
DH-3 15 648.0 Oaf CL 34.5 72 71
DH·3 19 644.0 Oofs Cl 8,1 51 200 270
DH-3 20 643.0 Qols CL 37.5 62 59
DH-3 25 638.0 Ools Ml 23.6 84 64
DH-3 30 633.0 Ools ML 28.5 81 73
DH-3 35 628.0 Oo(s Ml 35.8 63 58
DH-3 40 623.0 Ools ML 37.5 72 76
DH-3 45 618.0 Ools ML 43.1 70 83
DH-3 50 613.0 Ools ML 41.5 66 72
DH-4 2.5 400.5 Oaf MH 27.4
DH·4 3 400.0 Oal MH 45.6 22 25 53 29 69 41 28 8.1 110 290 480
,
,DH-4 7.5 395.5 Oal CH 36.1 83 97
DH-4 12,5 390.5 Oal CH 31.6 64 87
DH-4 17.5 385.5 Oal CH 37.6 76 85
DH-4 20 383.0 Oal CH 35.1 7 20 73 46 72 29 43
DH-4 22.5 380.5 Qal CH 40.3 74 87
DH-4 27.5 375.5 Oal CH 22.7
I DH-4 32.5 370.5 001$CH 28.6 81 73
I DH-4 37.5 365.5 001$SC 32.5 89 99
I DH-4 38 365.0 Ools SC 34.6 83 92
DH-4 42.5 360.5 001$SC 41.7 80 104
!
DH·4 43 360.0 Ools SC 33.5 80 83
Project:San Ramon Canyon
GMU Project No,10-036-00J!!iI GWC"'N<CM.'NC
GRAVEL
COARSE FINE
SAND
MEDIUM FINE
SILT CLAY
0.0010.010.1
U.S.STANDARD SIEVE NUMBERS
#10 #20 #40 /160 #100 #200
10
U.S.STANDARD SIEVE
OPENING
1.5"314"318"#4
u I'----I'\r-::~~r--.['\1\~r-......0 "'~~I"--.i'---~~t-N I-0 "~r--","-..t\
'"NI--r\
0 ~I'a I\t'-.~~r-..
fit-I-..1\~0 t'l .....~I~~"-..t\
I't [\..
"-..I--"-
0 R ~~t\~""-..
\~f',
..........
0 "-I'»..
"-~\
~""~1lIt,~1\~~0 ~~h ......
f',
0 "-'"~
0
0
3"
10
3
7
8
9
2
I-
:I:
C>
iii 6;:
&i
It:W 5z
IT:
!Zw 4~
I1J
Q.
PARTICLE SIZE IN MILliMETERS
o
§
'"
Boring Depth Geologic Symbol LL PI ClassificationNumber(feet)Unit
DH-2 1.0 Qols •76 30 Silty Sand (SM)
DH-2 35.0 Qols III 72 24 Sill (ML)
DH-3 3.0 Qaf A 83 47 Fat Clay w/Gravel (CH)
DH-4 3.0 Qal *69 28 Fat Clay w/Sand (CH)
DH·4 20.0 Qal X 72 43 Fat Clay w/Sand (CH)
PARTICLE SIZE DISTRIBUTION
Project:San Ramon Canyon
Project No.10-036-00
60 VCLorOLCHorOH
"A"LINE
::=:'50 7
a../.........
X X /w 40Q Vz/-
~30 V *•
()
I-III
(/)20 /'
::5 V
0../10 V
CL-ML /MLor OL MH arOH
0
0 20 40 60 80 100
LIQUID LIMIT (LL)
Boring Depth GeologIc Test Insitu Water LL PL PI ClassificationNumber(feet)Unit Symbol Content (%)
DH-2 1,0 Qols •36 76 46 30 Silly Sand (SM)
DH·2 35.0 Qols !XI 29 72 48 24 Silt (ML)
DH-3 3,0 Qaf ...17 83 36 47 Fat Clay wIG ravel (CH)
DH·4 3.0 Qal *46 69 41 28 Sandy Slit (MH)
DH-4 20.0 Qal X 35 72 29 43 Fat Clay w/Sand (CH)
ATTERBERG LIMITS
Project:San Ramon Canyon:GMU Project No.10-036-00
GfOTE<:HNICAL.I:-.'C.
80
90
5040302010
~SG=2.60
SG=2.70
\
~
\~
\~
'\'\~
~~~-~
Io6r -...............
....~---.............-~70o
140
130
120
~zw
Cl
ik:100
Cl
en 110.E:
MOISTURE CONTENT (%)
Boring Depth Geologic Maximum Optimum
Number (feel)Unit Symbol Dry Density.Moisture Classification
pef Content,%
DH-2 1.0 Ools •77 37 Silly Sand (SM)
DH-2 35.0 001$1ZJ 87.8 28 Slit (ML)
COMPACTION TEST DATA
Project:San Ramon Canyon
Project No.10-036-00
CHEMICAL rEST RESULTS
SOLUBLE SOLUBLE MINIMUM
BORING DEPTH Ph SULFATES CHLORIDES RESISTIVITY
(FT.)(ppm)(ppm)ohm-em
DH-1 15-17'8.0 430 160 360
DH-1 62-64'7.0 563 390 170
DH-2 35-37'7.8 4 230 300
DH-3 19-21'8.1 51 200 270
DH-4 3-5'8.1 110 290 480
PERFORMED IN GENERAL ACCORDANCE WITH CALTRANS TEST METHODS 417/4221643
GMU
GEOTECHNICAL,INC.
San Ramon Canyon/Palos Verdes
10-036-00
August 2010
Boring Depth Geologic In Situ or %Hydro-Symbol Remolded ClassificationNumber(feet)Unit Sample Collapse
DH-4 12.5 Qal •In Situ ·0.25 Fat Clay w/Sand (CH)
10,0001,000
STRESS (pst)
100
W:::water added
~~~---t-~['.
\
1\
1\
.~1\r--.-I-----r--\--r-~r-r-r--r-
W
o
8
4
2
-4
10
16
10
12
14
CONSOLIDATION TEST DATA
Project:San Ramon Canyon
Project No.10-036-00.r:;~IGMU~-=-=GE~OT:=:EC~f1N::::IC:"::AL::::IN=:-C.·-------------------------------_--I
Boring Depth Geologic In Situ or %Hydro-Symbol Remolded ClassificationNumber(feet)Unit Sample Collapse
DH·4 17.5 Qal •In Silu 0.13 Fat Clay wlSand (CH)
10,0001,000
STRESS (psf)
100
W =water added
r---------....
III""t-"r--...
~\
\
1\
'"'\
1\
'\
1\
~u--_r---1\I-f---I--\I--I--:--r-.
W
o
4
2
8
-2
10
12
14
16
10
CONSOLIDATION TEST DATA
"~~IGMU:~GEOTECIINICN..INC.
Project:San Ramon Canyon
Project No.10-036-00
Boring Depth GeologIc In Situ or %Hydro-Symbol Remolded ClassificationNumber(feet)Unit Sample Collapse
DH-4 22.5 Qal •In Situ 0.97 Fat Clay w/Sand (CH)
o
10,0001,000
STRESS (pst)
100
W =water added
r---~~r-..N ....1-
I'.
'\
It
lit
\
\
1\
'\
~•~
~
'\
\
W
-2
8
4
-4
2
10
16
10
12
14
---~z 6
~
l-en
CONSOLIDATION TEST DATA
'Gl\'IU._:,1!.~"GEOT(~IINICAL INC.
Project:San Ramon Canyon
Project No.10-036-00
5,000
O~--,.~=-=-:!-:-:----=--::,-:=-....,.....,,:,=-::-:!o 1,000 2,000 3,000 4,000 5,000
NORMAL STRESS (psf)
SAMPLE AND TEST DESCRIPTION
Sample Location:DH-1 @ 25.0 ft Geologic Unlt:Qols Classification:Clayey Sift (ML)
Strain Rate (in/min):O.002 Sample Preparation:Undislurbed
Notes:Bluff
STRENGTH PARAMETERS
STRENGTH TYPE COHESION (psi)FRICTION ANGLE (degrees)
•Peak Slrength 360 38.0
IZl Ultimate Strength 280 27.0
SHEAR TEST DATA
Project:San Ramon Canyon
Project No.10-036-00
...;GEOTECfINICALiNC.
/0
./
//
V
/
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.;-J;./"'"/".,
/'C~.#-'
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/",,"'"./
••,,,c 0"""
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5,000
4,000
!3,000
~
t;
~:I:2,000
(f)
1,000
oa 1,000 2,000 3,000 4,000 5,000
NORMAL STRESS (pst)
SAMPLE AND TEST DESCRIPTION
Sample Location:DH-1 @ 75.0 fl Geologic Unlt:Qols Classification:Silt (ML)
Strain Rate (In/m In):0.002 Sam pIe Preparation:Undisturbed
Notes:Bluff
STRENGTH PARAMETERS
STRENGTH TYPE COHESION (pst)FRICTION ANGLE (degrees)
•Peak Strength 160 40.0
IJl Ultimate Strength 160 27.0
SHEAR TEST DATA
Project:San Ramon Canyon
Project No.10-036-00
5,0004,0002,000 3,000
NORMAL STRESS (pst)
1,000
0
/
~v~
,,,,~~':/
~0-/"
,/....
../~
~~
oo
4,000
1,000
5,000
~3,000
Ul
f3
~
~
~
~2,000
Ul
SAMPLE AND TEST DESCRIPTION
STRENGTH PARAMETERS
STRENGTH TYPE COHESION (pst)FRICTION ANGLE (degrees)
•Peak Strength 480 28.0
IZI Ultimate Strength 300 27.0
Sample Location:DH-2 @ 1.0 ft
Strain Rate (inlmin):0.002
Notes:
Geologic Unit:Qols ClassIfication:Silly Sand (SM)
Sample Preparation:Remolded
SHEAR TEST DATA
.--'.GMU Project:San Ramon Canyon
Project No.10-036-00
GEOTECHNICAl.INC_
5,000
o~......,....::!-=;--__--,::~:=-::-±"""""".....,.....,~~o 1.000 2,000 3,000 4,000 5,000
NORMAL STRESS (pst)
SAMPLE AND TEST DESCRIPTION
Sample Location:DH-2 @ 15.0 ft Geologic Unit:Qols Classification:Sill (ML)
Strain Rate (in/min):0.002 Sample Preparation:Undisturbed
Notes:
STRENGTH PARAMETERS
STRENGTH TYPE COHESION (pst)FRICTION ANGLE (degrees)
•Peak Strength 760 33.0
!Xl Ultimate Strength 220 21.0
SHEAR TEST DATA
Project:San Ramon Canyon
Project No.10-036-00
5,000
4,OOOf------t-------+-----+------I-----=-=---'1
t;:'
III 3,000.8:
II>
II>w
Q:
ti
Q:
~2,000:ren
1,OOOI---------1f------t----.-+-----+-------l
O!:---------:--=-==-----::-::'-:=----=--:h::=----....,.....,,'-:=-------=--:to1,000 2,000 3,000 4,000 5,000
NORMAL STRESS (pst)
SAMPLE AND TEST DESCRIPTION
Sample Location:DH-2 @ 30.0 ft Geologic Unit:Qols Classification:Clayey Silt (ML)
Strain Rate (infmin):0.001 Sample Preparation:Undisturbed
Notes:
STRENGTH PARAMETERS
STRENGTH TYPE COHESION (pst)FRICTION ANGLE (degrees)
•Peak Strength 2060 22.0
III Ultimate Strength 1200 15.0
SHEAR TEST DATA
Project:San Ramon Canyon
Project No.10-036-00
5,000
4,000f------+-----+-------f------t-------t
1,000 2,000 3,000
NORMAL STRESS (pst)
SAMPLE AND TEST DESCRIPTION
4,000 5,000
Sample Location:DH-2 @ 35.0 ft Geologic Unit:Qols Classification:Silt (ML)
Strain Rate (in/min):0.002 Sample Preparation:Remolded
Notes:
STRENGTH PARAMETERS
STRENGTH TYPE COHESION (pst)FRICTION ANGLE (degrees)
•Peak Strength 400 32,0
!XI Ultimate Strength 100 30.0
SHEAR TEST DATA
GMU
GWn:Cf-INICAL,INC.
Project:San Ramon Canyon
Project No.10-036-00
8,0004,000 6,000
NORMAL STRESS (pst)
2,000
olIa /
/
/
/
//
•v v//
V vI~~/c~/
V V 1/
)./
~V
oo
1,000
6,000
8,000
2,000
7,000
811-It:4,000
(J)
It:
LiS::r::
(J)3,000
It:'5,000
S
SAMPLE AND TEST DESCRIPTION
Sample Location:DH-2 @ 60.0 ft Geologic Unlt:Qols Classification:Silt (ML)
Strain Rate {in/min):0.002 Sample Preparation:Undisturbed
Notes:
STRENGTH PARAMETERS
STRENGTH TYPE COHESION {pst}FRICTION ANGLE (degrees)
•Peak Strength 400 48.0
III Ultimate Strength 0 30.0
SHEAR TEST DATA
Project:San Ramon Canyon
Project No.10-036-00:$"IGMU;o",':':o{b;-=GE=,OT=ECHN..:..=\CAL-=,II:C----------------------------------J
6,000
6,0005.0004,0003,0002,0001,000
5,000/----------+-----+----_w-------1r------+------:1'''9
4,000
i
.8:
I/)
I/)
W
0::3,000l-
I/)
~:r:
I/)
2,000
NORMAL STRESS (pst)
SAMPLE AND TEST DESCRIPTION
Sample Location:DH-3 @ 20.0 ft Geologic Unlt:Qols ClassIfication:Sandy Clay w/Sllt {SC}
Strain Rate (inlmin):O.002 Sample Preparation:Undisturbed
Notes:
STRENGTH PARAMETERS
STRENGTH TYPE COHESION (psf)FRICTION ANGLE (degrees)
•Peak Strength 830 35.0
00 Ultimate Strength 0 33.0
SHEAR TEST DATA
Project:San Ramon Canyon
Project No.10-036-00
5,000
O!;-------.~;;__--___;:~;_;;_---:;;_r!""---~~.___--......"._,!a 1,000 2,000 3,000 4,000 5,000
NORMAL STRESS (pst)
SAMPLE AND TEST DESCRIPTION
Sample Location;DH-3 @ 30.0 ft Geologic Unit:Qols Classification:Clayey Silt (ML)
Strain Rate (in/min):0,001 Sample Preparation;Undisturbed
Notes:
STRENGTH PARAMETERS
STRENGTH TYPE COHESION (psf)FRICTION ANGLE (degrees)
•Peak Strength 860 32.0
III Ultimate Strength 360 30.0
SHEAR TEST DATA
"GEOTECHNICA!..iNC
Project:San Ramon Canyon
Project No.10-036-00
APPENDIX C
Stability Analysis
GMU'
"..
GEOTECHNICAL,INC.
Mr.Randall Berry,HARR..IS &ASSOCIATES
Sail RmllOIl Callyoll Storm Dm;1I Project,City ofRallcho Palos Verdes
APPENDIXC
SLOPE STABILITY ANALYSES
SHEM~STRENGTHPARAMETERS
Altamira Shale Member,Montcrcy Formation (Intact and Landslide Affectcd)
Published Strength for South Shores Landslide Basal Rupture SmJace (Bentonite)
The article entitled "Geologic Investigation,Grading Stabilization Measures,and Development
of the South Shores Landslide"by Ray (1982),indicates a strength of phi =8 degrees and
c =100psf for samples "considered representative of the slide plane".Given that the basal
rupture surface is thought to be composed of bentonite,this strength is considered representative
of bentonite-lined surfaces.
Published Strength for Altamira Shale Member,Monterey Formation
We have reviewed the geotechnical report prepared by SWN Soiltech Consultants,Inc.(1996)
for the proposed residence at 30764 Tarapaca Road.More specifically,we have reviewed
SWN's laboratory testing results and slope stability analyses and find the shear strengths used for
this adjacent property are generally consistent witll the shear strengths used in our analyses,as
discussed below.
Back-Calculation of Strength Along Rupture Surface -Tarapaca Landslide
Back-calculation analyses were performed on the pOliions of Cross-Sections 2-2'and 3-3'that
go through the Tarapaca landslide.Because seepage was not seen at the toe of the landslide
during geologic recOlmaissances and mapping exercises,no groundwater was assumed in the
analyses.This assumption will yield the most conservative value.
The results of the analyses indicate a strength of phi =21 to 24 degrees for Cross Sections 2
and 3,respectively.Assuming a symmetrical weighting,an average residual phi angle of
22.5 degrees can be assumed.
November 10,2010 Col GMU Project 10-036-00
Mr.Randall Berry,HARRIS &ASSOCIATES
Sail Ramo1l Cfmyoll Storm Dm;1I Project,City ofR(lIIcllo Palos Verdes
Direct Shear Testing Results
Several shear strength tests were performed on samples retrieved fi'om bucket-auger borings
drilled in the switchback and bluff face areas (DH-2 and DH~3).The shear strength data from
the switchback area was separated fi'om those obtained from the bluff area and are summarized
below:
Switchback Area
Strength Type Phi C (pst)
Peak (average)37 960
UltimatelFuIly Softened 23 570
(average)
Bluff Area
Strength Type Phi C (pst)
Peak (average)39 520
Ultimate/Fully Softened 27 220
(average)
Stark Correlations
Liquid limit and grain size data were utilized to determine strengths via correlations from Stark
(2005).Based on a liquid limit of 72 and a clay fines fraction of 26%,the following strength
correlations were determined.An average value between residual and fully softened was
calculated as first time slides usually occur at strengths between fully softened and residual.
Strength Type Strength (no correction)Strength (wI ball mill
Degrees correction)
Degrees
Residual 17 12
Ultimate/Fully Softened 28 26
Average 22.5 19
Back-Calculation to Evaluate Cross Bedding Strength in Bluff Area
A circular failure search was performed to evaluate the cross bedding strength in the bluff area.
Both ultimate/fully softened and peak strength values were utilized from the direct shear testing
results of samples from Boring 01-1-1.Safety factors of 0.8 and 1.3 were obtained for both
ultimate and peak strengths,respectively.
November 10,20 I0 C-2 GMU Project 10-036-00
Mr.Randall Berry,HARRIS &ASSOCIATES
Sail Ramoll Callyon Storm Drain Project,City of RmlCllO Palos Verdes
Conclusions
The following conclusions can be reached from the above strength testing results:
1.The Tarapaca landslide failed along continuous bedding planes that were not bentonite
lined.
2.The average uncol1'ected strength from the Stark method correlates well with the overall
back-calculated strength.This suggests the ball mill correction factors should not be
applied at this site.
3.Cross bedding strength in the bluff area appeal'S to be close to the peak strength
determined from the direct shear testing.
Engineered Fill
The following average strengths were detenuined from direct shear testing on remolded samples
of representative on-site soil and bedrock materials.
Engineered Fill
Strength Type Phi C (pst)
Peak (average)30 490
Ultimate/Fully Softened 28 250
(average)
STRENGTH AND STABILITY MODELS
Based on the above strength test results and back-calculations,the following strength models
were assigned to each crossHsection based on the local geologic conditions..
Cross Section 3-3'(Lower Switchbacl{PVDE)
Geologic Description Relating to Stability
•Highly contorted older landslide debris.
•Bottom part of slope contains no continuous planar bedding or sheared surface.
•Upper portion of slope contains possible along bedding conditions.
Strength Model
•Bottom portion of slope contains no continuous plane of weakness.
•Upper portion of slope contains possible along bedding conditions.
November 10,2010 C-3 GMU Project 10-036-00
Mr.Randall Berry,HARRIS &ASSOCIATES
Sail Ramoll Callyol1 Storm Dmll1 Project,CUy ofRallcho Palos Verdes
Stability Model
•Fully softened/Ultimate strength fro111 direct shear testing in lower portion of slope (phi
=23;c =570 psf).
•Residual strength along bedding in upper portion of slope (phi =17).
•Translation and rotational critical failure searches.
•No groundwater.
Cross Section 1-1~(Upper Switcbback PVDE)
Geologic Description
•Highly folded bedding throughout slope section.
•No continuous planar bedding condition.
•Approximate SO/50 mix of across and along bedding conditions (phi =23;c =570 psf).
Strength Model
•Fully softenedlUltimate strengths from direct shear testing was utilized.
Stability Model
•Circular failure search was performed to obtain safety factors.
•No groundwater.
Cross Sections 2-2'and 3-3'(Tarapaca Landslide)
Geologic Description
•The Tarapaca landslide is an actively moving landslide.
Strength Model
•Back~calculated strengths were used for each cross section (phi =21 and 24 degrees).
•Ultimate remolded fill strengths were utilized for postulated fill to be placed in the
canyon (phi =28 and c =250 psf).
Stability Model
•Failure surface confined to basal rupture surface and allowed to search through passively
through a toe buttress composed of engineered fill.
November 10,2010 C-4 GMU Project 10-036-00
Mr.Randall Berry,HARRIS &ASSOCIATES
Sail Ramoll Callyoll Storm Dmill Project,City ofRaJlcho P((los Verdes
Cl'OSS Section 6-6'(Bluff Stability)
Geologic Description
•The bluff is composed of relatively intact and less weathered Altamira Shale member,
Monterey Formation bedrock.
•Planar continuous bedding planes are currently interpreted in this area.
Strength Model
•Cross bedding strength was modeled using peak strengths as determined from the direct
shear testing in the bluff area (phi:=:39 and c :=:520 pst).
• A residual strength of phi:=:17 degrees was assumed for along bedding conditions.
Stability Model
•Translational failure searches along bedding at various heights above the toe of slope
were performed.
SUMMARY OF STABILITY ANALYSES RESUL1'8
Analysis Description Cross Strengths Static Factor
Section of Safety
Back-Calculation of Tarapaca 2 Phi:=:21 deg.1.0
Landslide
Back-Calculation of Tarapaca 3 Phi =24 deg.1.0
Landslide
Back-Calculation of Cross Bedding 6 Phi =27 c :=:220 1.3
Strength for Bluff Slope
Back-Calculation ofCl'OSS Bedding 6 Phi =39 c =520 0.8
Strength for Bluff Slope
Lower Switch Back -Existing 3 Phi =17 along bedding 1.9
Condition Stability (Translation Search -upper slope
at Road)Phi:=:23;c=570 -
Lower slope
Lower Switch Back -Existing 3 Phi =17 along bedding 1.6
Condition Stability (Circular Search at -upper slope
Road)Phi =23;c=570 -
Lower slope
Lower Switch Back -Existing 3 Phi =23;c=570 1.4
Condition Stability (Circular Search at
BJuffFace)
November 10,2010 C-s GMU Project 10-036-00
Mr.Randall Beny,HARRIS &ASSOCIATES
Stili Ramon Catlyoll Storm Dmlll Project,City ofRancho Falos Verdes
LoweI'Switchback -Amount of Bluff 3 Phi =23;c =570 1.01 (for 35'
Face Erosion fOI'Failure of bluff face
erosion)
Upper Switch Back -Existing 1 Phi =23;c =570 1.4
Condition Stability (Circular Failure
Search at Bluff Face)
Upper Switch Back -Existing 1 Phi =23;c =570 1.3
Condition Stability (Circular Failure
Search at Road)
Upper Switchback -Amount of Bluff 1 Phi =23;c =570 1.02 (for 40'
Face Erosion for Faillll'e of bluff face
erosion)
Tarapaca Landslide -FiJI Height at 2 Slide:Phi =21 deg.1.3 (forfil!
Toe for Appl'Ox.1.25 Safety Factor Fill Butt.:Phi =28;height =20
c=250 feet)
Tarapaca Landslide -Fill Height at 2 Slide:Phi =21 deg.1.5 (for fill
Toe for Approx.1.5 Safety Factor Fill Butt.:Phi =28;height =30
c=250 feet)
Tarapaca Landslide -Fill Height at 3 Slide:Phi =24 deg.1.2 (for fill
Toe for Approx.1.25 Safety Factor Fill Butt.:Phi =28;height =10
c=250 feet)
Tarapaca Landslide -Fill Height at 3 Slide:Phi =24 deg.1.5 (for fill
Toe for Approx.1.5 Safety Factor Fill Butt.:Phi =28;height =16.5
c=250 feet)
November 10,2010 C-6 GMU Project 10-036-00
#FS
a 1.0
b 1.0
c 1.0
d 1.0
e 1.0
500
400
300
200
100
Sect 2,Static,Back~calculation of Terrapaca Landslide
u:\2010\10-036-00\analyses\slope stability\2_s b.pl2 Run By:John Smith,XYZ Company 9/28/2010 10:16AM
I .--I ~...- I --I ------1 I
Soil Soil Total Saturated Cohesion Frielio~Pore Pressure I Piez]1
Desc,Type Unit WI.Unit Wt.Intercept Angle I Pressure Constant :Surface :
~o.(pet)(pet):(pst)(deg):Paramo (pst):No,:
Qls ,1 104.5 110.0,0.0 21,0 I 0.00 0.0 I 0 1
Tma :2 125.0 130.0,1500.~~~.:.~~0.00 0.0:0 :
I I 'I I
f 1.0:::::9_tQ.L .._L !______1 _
h 1.0::::
i 1.0 I I I I
j 1.0::::
--I I I I
I I I ,
,I'I
1 ,,17 I
I I 1 1
I I /5 1 I ,
::14 1:I :-....------ - - - -~- - - -..- -......- -~- --1-- - - - - - -•-29 -..- - - -..-+ - - - - - ------ ---+ - - - - - - - - - - - -..- - -......- - - - -....- - - - - - - - - - -....
I 13''1 I I I I1~:1 ::::1 1 I I I I I I, I /2 I I I I I1I_..__I ,I I I
I I
I ,
I I
1 I
I I
I I_________________________1 ..__....1 .._
I
I
I
1
1
I
1
1,,
\
I
I I I I I
-----------~--~---------~-----··------r------------~------------~---------_....,------------~-----------
I I I l I I
I I I I I I
I I I I I
I I I I I
I I I 1 I
I I I I I
I I I l I
I I I I I
I I I I I
I I I I I
I t I I ,
800
____---'-_.___I I .
500 600 700100
__________m I I...I I
200 300 400
GSTABL7 v.2 FSmln=1.0
Safety Factors Are Calculated By The Simplified Janbu Method for the case of c=O
o
o
U:\2010\10-036-00\Ana1yses\Slope Stability\2_s_b.OUT Page 1
***GSTABL7 *****GSTABL7 by Garry H.Gregory,P.E.****Original Version 1.0,January 1996;Current Version 2.005,Sept.2006 **
(All Rights Reserved-Unauthorized Use Prohibited)
*******************~*************************************************************
SLOPE STABILITY ANALYSIS SYSTEM
Modified Bishop,Simplified Janbu,or GLE Method of Slices.
(Includes Spencer &Morgenstern-Price Type Analysis)
Including Pier/Pile,Reinforcement,Soil Nail,Tieback,
Nonlinear Undrained Shear Strength,Curved Phi Envelope,
Anisotropic Soil,Fiber-Reinforced Soil,Boundary Loads,Water
Surfaces,Pseudo-Static &Newmark Earthquake,and Applied Forces.
*********************************************************************************
Analysis Run Date:9/28/2010
Time of Run:10:16N~
Run By:John Smith,XYZ Company
Input Data Filename:U:\2010\10-036-00\Analyses\Slope Stability\2 s b.in
Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\2-s-b.OUT
Unit System:English --
Plotted Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\2 s b.PLT
PROBLEM DESCRIPTION:Sect 2,Static,Back-calculation - -
of Terrapaca Landslide
BOUNDARY COORDINATES
24 Top Boundaries
36 Total Boundaries
Boundary X-Left ¥-Left
No.(ft)(ft)
1 0.00 280.00
2 35.00 280.00
3 80.00 272.00
4 108.00 254.00
5 111.00 250.00
6 112.00 245.00
7 118.00 237.00
8 122.00 235.00
9 129.00 234.00
10 131.00 235.00
11 134.00 239.00
12 146.00 246.00
13 165.00 265.00
14 228.00 306.00
15 238.00 310.00
16 253.00 322.00
17 287.00 328.00
18 332.00 335.00
19 361.00 334.00
20 367.00 340.00
21 377.00 345,00
22 383.00 355,00
23 440,00 369.00
24 490.00 389,00
25 129.00 234,00
26 150,00 234.00
27 185.00 241.00
28 191.00 243.00
29 288.00 275,00
30 356.00 313.00
31 368.00 325.00
32 0.00 200,00
33 30.00 201.00
34 137.00 207.00
35 160.00 211,00
36 173.00 219,00
Default Y-Origin =O.OO(ft)
Default X-Plus Value =O.OO(ft)
Default Y-Plus Value =O.OO(ft)
ISOTROPIC SOIL PARAMETERS
2 Type(s)of Soil
X-Right
(ft)
35.00
80.00
108.00
111.00
112.00
118.00
122.00
129.00
131.00
134.00
146.00
165.00
228.00
238.00
253.00
287.00
332.00
361.00
367.00
377 .00
383.00
440.00
490.00
521.00
150.00
185.00
191.00
288.00
356.00
368.00
377.00
30,00
137.00
160.00
173.00
185.00
Y-Right
(ft)
280.00
272.00
254.00
250.00
245.00
237.00
235.00
234.00
235.00
239.00
246.00
265.00
306.00
310.00
322.00
328.00
335.00
334.00
340.00
345.00
355.00
369.00
389.00
399.00
234.00
241.00
243.00
275.00
313.00
325.00
345.00
201.00
207.00
211.00
219.00
241.00
Soil Type
Below Bnd
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
U:\2010\10-036-00\Analyses\Slope Stability\2_s_b.OUT Page 2
0.23 %
Piez.
Surface
No.
o
a
Height
(ft)
0.10
1.00
1.00
1.00
1.00
1.00
1.00
0.00
Trial
Earthquake
Force Surcharge
Hor Ver Load
(lbs) (lbs)(lbs)
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
Tan
(lbs)
O.
O.
O.
O.
O.
O.
O.
O.
O.
O.
O.
O.
O.
O.
O.
O.
O.
23 slices
Tie Tie
Force Force
Norm
(lbs)
O.
O.
O.
O.
O.
O.
O.
O.
O.
O.
O.
O.
O.
O.
O.
O.
O.
Weight
(lbs)
11.6
6.4
83.6
962.7
10844.0
5947.9
34846.6
67948.3
382.0
24002.4
174673.8
53584.4
66565.3
19732.0
198177.2
5532.6
202129.0
Width
(ft)
0.5
0.1
1.0
3.0
12.0
4.0
15.0
19.9
0.1
6.0
37.0
10.0
11.7
3.3
34.0
1.0
44.0
Soil Total .Saturated Cohesion Friction Pore Pressure
Type Unit Wt.Unit Wt.Intercept Angle Pressure Constant
No.(pcf)(pcf)(psf)(deg)Paramo (psf)
I 104.5 110.0 0.0 21.0 0.00 0.0
2 125.0 130.0 1500.0 50.0 0.00 0.0
Janbus Empirical Coef is being used for the case of c=O
A Critical Failure Surface Searching Method l Using A Random
Technique For Generating Sliding Block Surfaces I Has Been
Specified.
10 Trial Surfaces Have Been Generated.
8 Boxes Specified For Generation Of Central Block Base
Length Of Line Segments For Active And Passive Portions Of
Sliding Block Is 10.0
Box X-Left Y-Left X-Right Y-Right
No.(ft) (ft)(ft)(ft)
1 130.00 234.00 130.00 234.00
2 150.00 234.00 150.00 234.00
3 185.00 241.00 185.00 241.00
4 191.00 243.00 191.00 243.00
5 288.00 275.00 288.00 275.00
6 356.00 313.00 356.00 313.00
7 368.00 325.00 368.00 325.00
8 377.00 345.00 377.00 345.00
Following Are Displayed The Ten Most Critical Of The
Failure Surfaces Evaluated.They Are
Ordered -Most Critical First.
* *Safety Factors Are Calculated By The Simplified Janbu Method **
Total Number of Trial Surfaces Attempted =10
Number of Trial Surfaces With Valid FS =10
Statistical Data On All Valid FS Values:
FS Max =1.011 FS Min =1.003 FS Ave =1.007
Standard Deviation =0.002 Coefficient of Variation
Failure Surface specified By 9 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 129.367 234.183
2 130.000 233.955
3 150.000 233.750
4 185.000 240.840
5 191.000 242.534
6 288.000 275.303
7 356.000 313.365
8 368.000 324.689
9 377.000 345.000
Factor of Safety
***1.003 ***
Individual data on the
Water Water
Force Force
Top Bot
(lbs)(lbs)
0.0 0.0
0.0 0.0
o.a 0.0
o.a 0.0
o.a 0.0
o.a 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
Slice
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
U:\2010\10-036-00\Analyses\Slope Stability\2_s_b.OUT Page 3
18 24.0 70067.6 0.0 0.0 O.O.0.0 0.0 0.0
19 5.0 9594.0 0.0 0.0 O.O.0.0 0.0 0.0
20 1.5 2474.9 0.0 0.0 O.O.0.0 0.0 0.0
21 4.5 7610.6 0.0 0.0
O.0,0.0 0.0 0.0
22 1.0 1675.4 0.0 0,0 O.O.0.0 0.0 0.0
23 9.0 7435.1 0.0 0,0 O.O.0.0 0.0 0.0
Failure Surface Specified By 9 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 129.367 234.183
2 130.000 233.986
3 150.000 233.772
4 185.000 241.465
5 191.000 243.279
6 288.000 275.308
7 356.000 313.395
8 368.000 325.135
9 377.000 345.000
Factor of Safety
***1.005 ***
Failure surface Specified By 9 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 129.436 234.218
2 130.000 234.026
3 150.000 233.847
4 185.000 240.997
5 191.000 243.299
6 288.000 275.097
7 356.000 313.485
8 368,000 325.307
9 377.000 345.000
Factor of Safety
***1.006 ***
Failure Surface Specified By 9 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 129.613 234.306
2 130.000 234.007
3 150.000 234.263
4 185.000 240.667
5 191.000 243.129
6 288.000 275.244
7 356.000 313.355
8 368.000 324.556
9 377.000 345.000
Factor of Safety
***1.007 ***
Failure Surface Specified By 9 coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 129.651 234.326
2 130.000 233.989
3 150.000 233.769
4 185.000 241.271
5 191.000 243.487
6 288.000 275.262
7 356.000 313.189
8 368.000 324.613
9 377.000 345.000
Factor of Safety
***1.007 ***
Failure Surface Specified By 9 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 129.498 234.249
2 130.000 233.989
3 150.000 233.979
U:\2010\10-036-00\Ana1yses\Slope Stability\2_s_b.OUT Page 4
4 185.000 240.584
5 191.000243.419
6 288.000 274.954
7 356.000 313.406
8 368.000 324.746
9 377.000 345.000
Factor of Safety
***1.008 ***
Failure Surface Specified By 9 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 129.310 234.155
2 130.000 233.988
3 150.000 234.427
4 185.000 240.655
5 191.000 243.160
6 288.000 275.287
7 356,000 313.128
8 368,000 324.528
9 377.000 345.000
Factor of Safety
***1.008 ***
Failure Surface Specified By 9 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 129.359 234.180
2 130.000 233.981
3 150.000 234.357
4 185.000 240.630
5 191.000 243.102
6 288.000 274.992
7 356.000 313.269
8 368.000 324.652
9 377.000 345.000
Factor of Safety
***1.009 ***
Failure Surface Specified By 9 Coordinate Points
Point X-Surf Y-Surf
No,{ftl (ft)
1 129.581 234.290
2 130.000 234.013
3 150.000 233.841
4 185.000 241.251
5 191.000 242.578
6 28B.000 274.793
7 356.000 312.612
8 368.000 324.507
9 377.000 345.000
Factor of Safety
***1.010 ***
Failure Surface Specified By 9 Coordinate points
Point X-Surf Y-Surf
No,{ftl (ft)
1 129.273 234.137
2 130.000 234.005
3 150.000 234.399
4 185.000 241.164
5 191.000 243.316
6 288.000 274.573
7 356.000 313.405
8 368.000 325,029
9 377.000 345.000
Factor of Safety
***1.011 ***
****END OF GSTABL7 OUTPUT ****
500 .-
Sect 3,Static,Back~calculation of Terrapaca Landslide
u:\201 0\1 0-036-00\analyses\sfope stability\3_s_b.pI2 Run By:Jolin Smith,XYZ Company 9/28/2010 10:18AM
Soli Soil:Total ~~turated 'co~eSjon'~rietlon .'Pore :P;~~~-~re Pi~~.:T ~--------------.
Dese.Type,Unit WI.Unit WI.Intercept Angle Pressure Constant Surface ,,
No.:(pel) (pel)(~sf)(deg)Param.:(psf)No.::
Ols 1 I 104,5 110.0 0.0 24.0 0.00,0.0 0 I ,
----.--t -----1 ,-i "..-I I
I I I I I
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I I ,I ,
I \I I I I________1 ,•.•1 .•..J ••••_••l _,.,..L ~•••_.•.•__L _
I I I I I 29
:::::~
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: :a:~
::,:2~1;1
I ,
,I
#FS
a 1.0
b 1.0
e 1.0
d 1.0
e 1.0
f 1.0
g 1.0
h-t.O
i 1.0
j 1.0
I,,
I
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I,
I,
I
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,----------1--------------~--------------~-------------
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f :I :I
1 ,:I :
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38 39 I 41 4 .•;:I :I :--1---~-~,__-=jC'_'_':_m
-----i-------------i m
--------~-••--------j--_m __
I :':I :---
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t I I I I I
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--------------r-------------1--------------i--------------i--------------~--------------l--------------
I ,I I 'I
I I I I I I
I I I I r I
t I I I t I
I I I I J I
,I I I I f
j til I r
I 1 I I I I
I I I I I IIIIIII
300
200
400
100
o
o
_____1 I I _.LI _
100 200 300 400 500
GSTABL7 v.2 FSmin=1.0
Safety Factors Are Calculated By The Simplified Janbu Method for the case of c=O
600 700
U:\2010\10-036-00\Analyses\Slope Stability\3_s_b.OUT Page 1
***GSTABL7 ***
**GSTABL7 by Garry H.Gregory,P.E.**
**Original Version 1.0,January 1996;Current Version 2.005,Sept.2006 **
(All Rights Reserved-Unauthorized Use Prohibited)
*********************************************************************************
SLOPE STABILITY ANALYSIS SYSTEM
Modified Bishop,Simplified Janbu,or GLE Method of Slices.
(Includes Spencer &Morgenstern-Price Type Analysis)
Including Pier/Pile,Reinforcement,Soil Nail,Tieback,
Nonlinear Undrained Shear Strength,Curved Phi Envelope,
Anisotropic Soil,Fiber-Reinforced Soil,Boundary Loads,Water
Surfaces,Pseudo-static &Ne~mark Earthquake,and Applied Forces.
*********************************************************************************
Analysis Run Date:9/28/2010
Time of Run:10:18AM
Run By:John Smith,XYZ Company
Input Data Filename:U:\2010\10-036-00\Analyses\Slope Stability\3 s b.in
Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\3-s-b.OUT
Unit System:English --
Plotted Output Filename:U:\2010\10-036-00\Analyses\Slope Stabi1ity\3 s b.PLT
PROBLEM DESCRIPTION:Sect 3,static,Back-calculation - -
of Terrapaca Landslide
BOUNDARY COORDINATES
29 Top Boundaries
44 Total Boundaries
Boundary X-Left
No.(ft)
1 0.00
2 26.00
3 82.00
4 87.00
5 99.00
6 101.00
7 105.00
8 110.00
9 122.00
10 134.00
11 140.00
12 151.00
13 162.00
14 177.00
15 190.00
16 197.00
17 221.00
18 226.00
19 242.00
20 249.00
21 261.00
22 263.00
23 265.00
24 272.00
25 368.00
26 405.00
27 451.00
28 496.00
29 562.00
30 110.00
31 126.00
32 146.00
33 176.00
34 196.00
35 236.00
36 251.00
37 256.00
38 0.00
39 46.00
40 106.00
41 146.00
Y-Left
(ft)
280.00
267.00
260.00
258.00
237.00
231.00
226.00
225.00
234.00
244.00
253.00
262.00
273.00
276.00
282.00
282.00
283.00
284.00
285.00
288.00
299.00
304.00
306.00
309.00
329.00
332.00
338.00
349.00
382.00
225.00
224.00
229.00
243.00
253.00
273.00
281.00
286.00
200.00
200.00
203.00
203.00
X-Right
(ft)
26.00
82.00
87.00
99.00
101.00
105.00
110.00
122.00
134.00
140.00
151.00
162.00
177.00
190.00
197.00
221.00
226.00
242.00
249.00
261.00
263.00
265.00
272.00
368.00
405.00
451.00
496.00
562.00
604.00
126.00
146.00
176.00
196.00
236.00
251.00
256.00
261.00
46.00
106.00
146.00
175.00
Y-Right
(ft)
267.00
260.00
258.00
237.00
231.00
226.00
225.00
234.00
244.00
253.00
262.00
273.00
276.00
282.00
282.00
283.00
284.00
285.00
288.00
299.00
304.00
306.00
309.00
329.00
332.00
338.00
349.00
382.00
396.00
224.00
229.00
243.00
253.00
273.00
281.00
286.00
299.00
200.00
203.00
203.00
206.00
Soil Type
Below Bnd
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
U:\2010\10-036-00\Analyses\Slope Stability\3_s_b.OUT Page 2
**
0.00 %
1
1
1
Piez.
Surface
No.
o
Height
(ft)
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Trial
Earthquake
Force Surcharge
Hor Ver Load
(lbs)(lbs)(lbs)
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
209.00
216.00
253.00
20 slices
Tie Tie
Force Force
Norm Tan
(lbs)(Ibs)
O. O.
O. O.
O.O.
O. O.
O. O.
O.O.
O. O.
O.O.
O. O.
182.00
188.00
196.00
weight
(lbs)
6113.2
4824.4
13097.3
13637.2
17057.2
15564.2
38623.2
50717.3
3411.9
Width
(ft)
12.0
4.0
8.0
6.0
6.0
5.0
11.0
14.0
1.0
42 175.00 206.00
43 182.00 209.00
44 188.00 216.00
Default Y-origin =O.OO(ft)
Default X-Plus Value =O.OO(ft)
Default Y-P1us Value =O.OO(ft)
ISOTROPIC SOIL PARAMETERS
1 Type(s)of Soil
Soil Total Saturated Cohesion Friction Pore Pressure
Type Unit Wt.Unit Wt.Intercept Angle Pressure Constant
No.(pcf)(pcf)(psf)(deg)Paramo (psf)
1 104.5 110.0 0.0 24.0 0.00 0.0
Janbus Empirical Coef is being used for the case of c=O
A Critical Failure Surface Searching Method,Using A Random
Technique For Generating Sliding Block Surfaces,Has Been
Specified.
10 Trial Surfaces Have Been Generated.
9 Boxes Specified For Generation Of Central Block Base
Length Of Line Segments For Active And Passive Portions Of
Sliding Block Is 15.0
Box X-Left Y-Left X-Right Y-Right
No.(ft)(tt)(ft)(ft)
1 110.00 225.00 110.00 225.00
2 126.00 224.00 126.00 224.00
3 146.00 229.00 146.00 229.00
4 176.00 243.00 176.00 243.00
5 196.00 253.00 196.00 253.00
6 236.00 273.00 236.00 273.00
7 251.00 281.00 251.00 281.00
8 256.00 286.00 256.00 286.00
9 261.00 299.00 261.00 299.00
Following Are Displayed The Ten Most Critical Of The
Failure Surfaces Evaluated.They Are
Ordered -Most Critical First.
**Safety Factors Are Calculated By The Simplified Janbu Method
Total Number of Trial Surfaces Attempted =10
Number of Trial Surfaces With Valid FS =10
Statistical Data On All Valid FS Values:
FS Max =1.020 FS Min =1.020 FS Ave =1.020
Standard Deviation =0.000 Coefficient of Variation
Failure Surface Specified By 9 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 110.000 225.000
2 126.000 224.000
3 146.000 229.000
4 176.000 243.000
5 196.000 253.000
6 236.000 273.000
7 251.000 281.000
8 256.000 286.000
9 261.000 299.000
Factor of Safety
***1.020 ***
Individual data on the
Water Water
Force Force
Top Bot
(lbs)(lbs)
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
Slice
No.
1
2
3
4
5
6
7
8
9
U:\20l0\10-036-00\Analyses\Slope Stability\3_s_b.OUT Page 3
10 13.0 43811.6 0.0 0.0 O.O.0.0 0.0 0.0
11 6.0 19123.5 0.0 0.0 O.O.0.0 0.0 0.0
12 1.0 3004.4 0.0 0.0 O.O.0.0 0.0 0.0
13 24.0 57684.0 0.0 o.b O.o.0.0 0.0 0.0
14 5.0 8751.9 0.0 0.0 o.o.0.0 0.0 0.0
15 10.0 14434.1 0.0 0.0 o.o.0.0 0.0 0.0
16 6.0 6403.2 0.0 0.0 o.o.0.0 0.0 0.0
17 7.0 6169.0 0.0 0.0 o.o.0.0 0.0 0.0
18 2.0 1766.0 0.0 0.0 o.o.0.0 0.0 0.0
19 5.0 4506.6 0.0 0.0 o.o.0.0 0.0 0.0
20 5.0 2198.9 0.0 0.0 o.o.0.0 0.0 0.0
Failure Surface Specified By 9 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 110.000 225.000
2 126.000 224.000
3 146.000 229.000
4 176.000 243.000
5 196.000 253.000
6 236.000 273.000
7 251.000 281.000
8 256.000 286.000
9 261.000 299.000
Factor of Safety
***1.020 ***
Failure Surface Specified By 9 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 110.000 225.000
2 126.000 224.000
3 146.000 229.000
4 176.000 243.000
5 196.000 253.000
6 236.000 273.000
7 251.000 281.000
8 256.000 286.000
9 261.000 299.000
Factor of Safety
***1.020 ***
Failure Surface Specified By 9 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 llO.OOO 225.000
2 126.000 224.000
3 146.000 229.000
4 176.000 243.000
5 196.000 253.000
6 236.000 273.000
7 251.000 281.000
8 256.000 286.000
9 261.000 299.000
Factor of Safety
***1.020 ***
Failure Surface Specified By 9 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 llO.OOO 225.000
2 126.000 224.000
3 146.000 229.000
4 176.000 243.000
5 196.000 253.000
6 236.000 273.000
7 251.000 281.000
8 256.000 286.000
9 261.000 299.000
Factor of Safety
***1.020 ***
F~ilure Surface Specified By 9 Coordinate points
U:\2010\10-036-00\Analyses\Slope Stability\3_s_b.OUT Page 4
Point X-Surf Y-Surf
No.(ft)(ft)
1 110.000 225.000
2 126.000 224.000
3 146.000 229.000
4 176.000 243.000
5 196.000 253.000
6 236.000 273.000
7 251.000 2B1.000
8 256.000 286.000
9 261.000 299.000
Factor of Safety
***1.020 ***
Failure Surface Specified By 9 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 110.000 225.000
2 126.000 224.000
3 146.000 229.000
4 176.000 243.000
5 196.000 253.000
6 236.000 273.000
7 251.000 281.000
B 256.000 286.000
9 261.000 299.000
Factor of Safety
***1.020 ***
Failure Surface Specified By 9 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 110.000 225.000
2 126.000 224.000
3 146.000 229.000
4 176.000 243.000
5 196.000 253.000
6 236.000 273.000
7 251.000 281.000
8 256.000 286,000
9 261.000 299.000
Factor of Safety
***1.020 ***
Failure Surface Specified By 9 Coordinate Points
Point X-Surf Y-Surf
No.(ft) (ft)
1 110.000 225.000
2 126.000 224.000
3 146.000 229.000
4 176.000 243.000
5 196.000 253.000
6 236.000 273.000
7 251.000 281.000
8 256.000 286.000
9 261.000 299.000
Factor of Safety
***1.020 ***
Failure Surface Specified By 9 Coordinate Points
Point X-Surf Y-Surf
No.(ft) (ft)
1 110.000 225.000
2 126.000 224.000
3 146.000 229.000
4 176.000 243.000
5 196.000 253.000
6 236.000 273.000
7 251.000 281.000
8 256.000 286.000
9 261.000 299.000
Factor of Safety
U:\2010\lO-036-00\Analyses\Slope Stability\3_s_b.OUT Page 5
***1.020 ***
****END OF GSTABL7 OUTPUT ****
#FS Soil $oil Total Saturated:Cohesion Friction P,?re Pressure Piez.:
a 1.3 Desc.type Unit WI.Unit WI.I Intercept Angle Pressure Constant Surface,
b 1.3 ~o.(pet)(pet):(pst)(deg)Par,am.(pst)No.;
c 1.3 QolslTma ,1 104.5 110.0 I 520.0 39.0 0.00 0.0 0d1.3 _.-.I --_.I
e 1.3
f 1.3
g 1.3
h-t.4
j 1.4
j 1.4
Sect 6,Back-calculation of the cross-bedding Strength for Bluff Slope
u:\201 0\1 0-036-00\analyses\slope stabilfty\6_s_4.p12 Run By:John Smilh,XYZ Company 9/28/2010 10:25AM
._.I ---..I-·.:t;-·-I'~-".~----------,
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400
500
300
200
100
200
OLI_-
a 100
.I .1.I
300 400 500
GSTA8L7 v.2 FSmin=1.3
Safety Factors Are Calculated By The Modified Bishop Method
600 700
700
36
1
600500400300200100
Sect 6,BackRcalculation of the cross Rbedding Strength for Bluff Slope
u;\2010\10-036·00\analyses\Slope stability\6_s_4.plt Run By:John Smith,XYZ Company 9/28/2010 10:25AM
,I J
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500
200
100
300
400
U:\2010\10-036-00\Analyses\Slope Stability\6_s_4,OUT Page 1
***GSTABL7 ***
**GSTABL7 by Garry H.Gregory,P.E.**
**original Version 1.0,January 1996;Current Version 2.005,Sept.2006 **
(All Rights Reserved-Unauthorized Use Prohibited)
*********************************************************************************
SLOPE STABILITY ANALYSIS SYSTEM
Modified Bishop,Simplified Janbu,or GLE Method of Slices.
(Includes Spencer &Morgenstern-Price Type Analysis)
Including Pier/Pile,Reinforcement,Soil Nail,Tieback,
Nonlinear Undrained Shear Strength,Curved Phi Envelope,
Anisotropic Soil,Fiber-Reinforced Soil,Boundary Loads,Water
Surfaces,Pseudo-Static &Ne~ooark Earthquake,and Applied Forces.
*********************************************************************************
Analysis Run Date:9/28/2010
Time of Run:10:25AM
Run By:John Smith,XYZ Company
Input Data Filename:U:\2010\10-036-00\Analyses\Slope Stability\6_s_4.in
Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\6 s 4,OUT
Unit System:English - -
Plotted Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\6 s 4.PLT
PROBLEM DESCRIPTION:Sect 6,Back-calculation of the cross-
bedding Strength for Bluff Slope
BOUNDARY COORDINATES
36 Top Boundaries
36 Total Boundaries
Boundary X-Left Y-Left
No.(ft)(ft)
1 0.00 200.00
2 14.00 200.00
3 16.00 201.00
4 17.00 204.00
5 18.00 205.00
6 21.00 206.00
7 30.00 208.00
8 47.00 212.00
9 53.00 218.00
10 58.00 223.00
11 63.00 228.00
12 64.00 230.00
13 69.00 233.00
14 73.00 238.00
15 76.00 250.00
16 78.00 255.00
17 82.00 260.00
18 90.00 273.00
19 95.00 280.00
20 100.00 283.00
21 102,00 294.00
22 108.00 300.00
23 113.00 305.00
24 144,00 328.00
25 153.00 335.00
26 172.00 337.00
27 219.00 339.00
28 277,00 340.00
29 295.00 341.00
30 324.00 345.00
31 344,00 349.00
32 372.00 353.00
33 439.00 365.00
34 516.00 380.00
35 629,00 411.00
36 648.00 420.00
Default Y-Origin =O.OO(ft)
Default X-Plus Value =O.OO(ft)
Default Y-Plus Value =O.OO(ft)
ISOTROPIC SOIL PARAMETERS
1 Type(s)of Soil
X-Right
(ft)
14.00
16.00
17.00
18.00
21.00
30.00
47.00
53.00
58,00
63.00
64.00
69.00
73,00
76,00
78.00
82.00
90.00
95.00
100.00
102.00
108.00
113.00
144.00
153.00
172.00
219.00
277.00
295.00
324.00
344.00
372.00
439.00
516.00
629.00
648.00
680.00
Y-Right
(ft)
200.00
201.00
204.00
205.00
206.00
208.00
212.00
218.00
223.00
228.00
230.00
233.00
238.00
250.00
255.00
260.00
273.00
280.00
283.00
294.00
300.00
305.00
328.00
335.00
337.00
339.00
340.00
341.00
345.00
349.00
353.00
365.00
380.00
411.00
420.00
425.00
Soil Type
Below Bnd
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
U:\2010\10-036-00\Analyses\Slope Stability\6_s_4.0UT page 2
9.37 %
I<*
138.413andRadius
Earthquake
Force Surcharge
Hor Ver Load
(lbs) (lbs)(lbs)
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
344.846
30 slices
Tie Tie
Force Force
Norm Tan
(lbs) (lbs)
O.O.
O.O.
O.O.
O.O.
O.O.
O.O.
O.O.
O.O.
O.O.
O.O.
O.O.
O.O.
O.O.
O.O.
O.O.
O.O.
O.O.
O.O.
O.O.
O. O.o.O.
Weight
(lbs)
202.5
1957.4
739.4
2624.1
4273.4
5994.1
176.1
1503.3
8138.2
7360.8
7706.0
6685.6
11834.7
3072.6
34417.4
24623.6
16329.6
9243.6
11122.1
36579.4
30931.5
vlidth
(ft)
6.3
13.6
3.4
6.0
5.0
4.9
0.1
1.0
5.0
.4.0
3.0
2.0
3.2
0.8
8.0
5.0
3.2
1.8
2.0
6.0
5.0
Soil Total Saturated Cohesion Friction Pore Pressure Piez.
Type Unit wt.Unit Wt.Intercept Angle Pressure Constant Surface
No.(pcf)(pcf)(psf)(deg)Paramo (psf)No.
1 104.5 110.0 520.0 39.0 0.00 0.0 0
A Critical Failure Surface Searching Method,Using A Random
Technique For Generating Circular Surfaces,Has Been Specified.
500 Trial Surfaces Have Been Generated.
25 Surface(s)Initiate(s)From Each Of 20 Points Equally Spaced
Along The Ground Surface Between X ~21.00(ft)
and X =47.00(ft)
Each Surface Terminates Between X =101.00 (ft)
and X =219.00(ft)
Unless Further Limitations were Imposed,The Minimum Elevation
At Which A Surface Extends Is Y =O.OO(ft)
20.00(ft)Line Segments Define Each Trial Failure Surface.
Following Are Displayed The Ten Most Critical Of The Trial
Failure Surfaces Evaluated.They Are
Ordered -Most Critical First.
* *Safety Factors Are Calculated By The Modified Bishop Method
Total Number of Trial Surfaces Attempted =500
Number of Trial Surfaces With Valid FS ~500
Statistical Data On All Valid FS Values:
FS Max =2.052 FS Min ~1.334 FS Ave =1.709
Standard Deviation =0.160 Coefficient of Variation
Failure Surface Specified By 12 Coordinate Points
Point X-Surf Y-Surf
No •(ft )(ft)
1 23.737 206.608
2 43.5B6 209.058
3 62.876 214.341
4 81.203 222.348
5 98.187 232.910
6 113.472 245.809
7 126.740 260.774
8 137.714 277.494
9 146.165 295.621
10 151.918 314.775
11 154.852 334.559
12 154.854 335.195
Circle Center At X =16.778;Y
Factor of Safety
***1.334 ***
Individual data on the
Water \'later
Force Force
Top Bot
(lbs)(lbs)
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
O.a 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
Slice
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
U:\2010\10-036-00\Analyses\Slope Stability\6_s_4.0UT Page 3
22 0.5 2935.9 0.0 0.0 O.o.0.0 0,0 0.0
23 13,3 79003.5 0.0 0.0 O.O.0.0 0.0 0.0
24 11.0 57490.2 0.0 0.0 O.O.0,0 0.0 0.0
25 6.3 27217.5 0.0 0.0 O.O.0.0 0.0 0.0
26 2.2 8043.0 0.0 0.0 O. O.0.0 0.0 0.0
27 5.8 16065.3 0.0 0.0 O. O.0.0 0.0 0.0
28 1.1 1826.5 0.0 0.0 O.O.0.0 0.0 0.0
29 1.9 1313.0 0.0 0.0 O.O.0.0 0.0 0.0
30 0.0 0.1 0,0 0.0 O.O.0.0 0.0 0.0
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 29.211 207.825
2 49.060 210.271
3 68.335 215.610
4 86.614 223.726
5 103.500 234.443
6 118.627 247.527
7 131.664 262.693
8 142.328 279.613
9 150.388 297.917
10 155.668 317.207
11 157.867 335.512
Circle Center At X =22.597 ; Y =343.261 ;and Radius =135.598
Factor of Safety
***1.337 ***
Failure Surface Specified By 12 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 26.474 207.216
2 46.318 209.705
3 65.654 214 .818
4 84.135 222.463
5 101.431 232.505
6 117.234 244.763
7 131.261 259,020
8 143.261 275.019
9 153.021 292.476
10 160,366 311.079
11 165.164 330.495
12 165.801 336.348
Circle Center At X =18.059 ; Y =356.026 ;and Radius =149.048
Factor of Safety
***1.337 ***
Failure Surface Specified By 12 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 26.474 207.216
2 46.339 209.533
3 65.663 214.691
4 84.040 222.581
5 101.08e 233.039
6 116.449 245.847
7 129.802 260.736
8 140.869 277 .396
9 149.417 295.477
10 155.268 314.602
11 158.299 334.371
12 158.308 335.559
Circle Center At X =20.494 ; Y =345.241 I and Radius =138.154
Factor of Safety
***1.338 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft) (ft)
1 22.368 206.304
2 42.239 208.573
3 61.502 213.954
U:\2010\10-036-00\Analyses\Slope Stability\6_s_4.0UT Page 4
333.088 ;and Radius
332.360 i and Radius
368.232 i and Radius
330.121 ;and Radius
126.131
161.383
124.674
123.226
Points
Points
Points
Points
222.313
233.438
247.051
262.808
280.314
299.129
318.780
327.773
18.040 ; Y =
4
5
6
7
8
9
10
11
circle
79.671
96.292
110.944
123.261
132.932
139.714
143.437
143.694
Center At X =
Factor of Safety
***1.346 ***
Failure Surface Specified By 12 Coordinate
Point X-Surf Y-Surf
No.(ft)(ft)
1 26.474 207.216
2 46.303 209.822
3 65.661 214.849
4 84.252 222.223
5 101.794 231.829
6 118.019 243.523
7 132.680 257.126
8 145.555 272.431
9 156.447 289.206
10 165.190 307.193
11 171.651 326.121
12 173.936 337.082
Circle Center At X =15.587;Y
Factor of Safety
***1.348 ***
Failure Surface Specified By 11 Coordinate
Point X-Surf Y-Surf
No.(ft)(ft)
1 31.947 208.458
2 51.833 210.591
3 71.122 215.877
4 89.318 224.178
5 105.952 235.283
6 120.597 248.904
7 132.874 264.692
8 142.470 282.239
9 149.136 301.096
10 152.701 320.775
11 152.966 334.973
Circle Center At X =28.637;Y
Factor of Safety
***1.349 ***
Failure Surface Specified By 11 Coordinate
Point X-Surf Y-Surf
No.(ft)(ft)
1 25.105 206.912
2 45.010 208.864
3 64.337 214.009
4 82.576 222.214
5 99.249 233.261
6 113.914 246.859
7 126.187 262.651
8 135.743 280.220
9 142.332 299.104
10 145.779 318.805
11 145.893 329.472
Circle Center At X =23.074;Y
Factor of Safety
***1.350 ***
Failure Surface Specified By 11 Coordinate
Point X-Surf Y-Surf
No.(ft)(ft)
1 26.474 207.216
2 46.412 208.792
U:\2010\10-036-00\Analyses\Slope Stability\6_s_4.0UT Page 5
330.939 ;and Radius 123.723.
121.837andRadius
Points
330.614
213.559
221.393
232.090
245.370
260.886
278.233
296.956
316.568
332.816
26.730 I Y
3
4
5
6
7
8
9
10
11
Circle
65.835
84.237
101.136
116.090
128.710
138.665
145.694
149.615
150.192
Center At X =
Factor of Safety
***1.360 ***
Failure Surface Specified By 11 Coordinate
Point X-Surf Y-Surf
No.(ft)(ft)
1 33.316 208.780
2 53.238 210.546
3 72.602 215.548
4 90.887 223.650
5 107.601 234.635
6 122.292 248.206
7 134.565 263.997
8 144.089 281.584
9 150.60B 300.492
10 153.945 320.211
11 153.995 335.105
Circle Center At X ~32.554 I Y
Factor of Safety
***1.365 ***
****END OF GSTABL7 OUTPUT ****
Sect 6,Back~calculation of the cross-bedding strength for Bluff Slope
u:\2010\10-036-00\analyses\slope stability\6_s_3.pI2 Run By:John Smith,XYZ Company 9/2812010 10:27AM
.-----r-I h 1-
700
,
r
r,
I,,
I
I,,
I
r
..L .._
r
I,,,
I
I
r
I
I
I
I _-"1'-----'
600500
I
r
I,
I,,,
r
r
I
I ~
200 300 400
GSTABL7 v.2 FSmin=O.8
Safety Factors Are Calculated By The Modified Bishop Method
$oil Total Saturated:Cohesion Friction P?re Pressure Plez.'
type Unit WI.Unit WI.,Intercept Angle Pressure Constant Surface
~o.(pet)(pet):(pst)(deg)Par,am.(pst)No.:
,1 104.5 110.0,220.0 27.0 0.00 0.0 0 ,
r---~~'-"..-_..I i
100
o
o
300
500
#FS Soil
a 0.6 Dese.
b 0.8
e 0.8 Qolsrrma
d 0.8
e 0.8
f 0.8
9 0.8400H-h-0.8
i 0.8
j 0.8
200
100
500
400
300
200
100
Sect 6,Back-calculation of the cross-bedding strength for Bluff Slope
u:\2010\10·036-00\analyseslslope stability\6_s_3.plt Run By:John Smith,XYZ Company 9/28/2010 10:27AM
I I I (--,,--------.
I I ,
,r ,
I I
I I
,I
I I
I ,
,I
I \
I I
,I
I I ,I
_________'•.•..J .•.•J -.•.•-L ---------34-_
,I I '~1
)I I I ~-,
I I I I
I I I I
::2 :
26:_27 28 :29 1 :
1 1:1 :
I I
I ,
I I I I____________~....l ..L_..L .._,"
r "I I
I ,
,I,,
I I
I I
I r
,I,,
I I
I I I ,___________J ..~_...~L ••.•_L ._
r I I I I
I I I I I
t 'I I I
I I I I I
I I'I r
I \I I I
I j I I 1
I I I I I
I I I I I
I I lit
I I I ,r
I I \I j
I •I I I•..•L .•_l ~.I.w L_•••...
I I I I I I
I I I I ,I
I I I I r I
I I 1 ,I I
I J I I I I
t I I I I I
I ,I I ,I
I I ,J I I
I I I I I I
I I I r ,I
I I I I I I
I I J I I I
o L..I
o 100 200 300
I .._~I ___
400 500 600 700
U:\20l0\10-036-00\Analyses\Slope Stability\6_s_3.0UT Page 1
***GSTABL7 ***
**GSTABL7 by Garry H.Gregory,P.E.**
**Original Version 1.0,January 1996;Current Version 2.005,Sept.2006 **
(All Rights Reserved-Unauthorized Use Prohibited)
*********************************************************************************
SLOPE STABILITY ANALYSIS SYSTEM
Modified Bishop,Simplified Janbu,or GLE Method of Slices.
(Includes Spencer &Morgenstern-Price Type Analysis)
Including Pier/Pile,Reinforcement,Soil Nail,Tieback,
Nonlinear Undrained Shear Strength,Curved Phi Envelope,
Anisotropic Soil,Fiber-Reinforced Soil,Boundary Loads,Water
Surfaces,Pseudo-Static &Newmark Earthquake,and Applied Forces.
*********************************************************************************
Analysis Run Date:9/28/2010
Time of Run:IO:27AM
Run By:John Smith,XYZ Company
Input Data Filename:U:\20l0\10-036-00\Analyses\Slope Stability\6 s 3.in
Output Filename:U:\20l0\10-036-00\Analyses\Slope Stability\6-s-3.0UT
Unit System:English --
Plotted Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\6 s 3.PLT
PROBLEM DESCRIPTION:Sect 6,Back-calculation of the cross---
bedding strength for Bluff Slope
BOUNDARY COORDINATES
36 Top Boundaries
36 Total Boundaries
Boundary X-Left Y-Left
No.(ftl (ftl
1 0.00 200.00
2 14.00 200.00
3 16.00 201.00
4 17.00 204.00
5 18.00 205.00
6 21.00 206.00
7 30.00 208.00
8 47.00 212.00
9 53.00 218.00
10 58.00 223.00
11 63.00 228.00
12 64.00 230.00
13 69.00 233.00
14 73.00 238.00
15 76.00 250.00
16 78.00 255.00
17 82.00 260.00
18 90.00 273.00
19 95.00 280.00
20 100.00 283.00
21 102.00 294.00
22 108.00 300.00
23 113.00 305.00
24 144.00 328.00
25 153.00 335.00
26 172.00 337.00
27 219.00 339.00
28 277.00 340.00
29 295.00 341.00
30 324.00 345.00
31 344.00 349.00
32 372.00 353.00
33 439.00 365.00
34 516.00 380.00
35 629.00 411.00
36 648.00 420.00
Default Y-Origin ~O.OO(ftl
Default X-Plus Value =O.OO(ft)
Default Y-Plus Value =O.OO(ft)
ISOTROPIC SOIL PARAMETERS
1 Type(s)of Soil
X-Right
(ft)
14.00
16.00
17.00
18.00
21.00
30.00
47.00
53.00
58.00
63.00
64.00
69.00
73.00
76.00
78.00
82.00
90.00
95.00
100.00
102.00
108.00
113.00
144.00
153.00
172.00
219.00
277.00
295.00
324.00
344.00
372.00
439.00
516.00
629.00
648.00
680.00
Y-Right
(ftl
200.00
201.00
204.00
205.00
206.00
208.00
212.00
218.00
223.00
228.00
230.00
233.00
238.00
250.00
255.00
260.00
273.00
280.00
283.00
294.00
300.00
305.00
328.00
335.00
337.00
339.00
340.00
341.00
345.00
349.00
353.00
365.00
380.00
411.00
420.00
425.00
Soil Type
Below Bnd
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
U:\2010\10-036-00\Analyses\Slope Stability\6_s_3.0UT Page 2
*;,
10.17 %
126.131andRadius
Earthquake
Force Surcharge
Hor Ver Load
(los)(lbs) (lbs)
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0,0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0,0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
332.360
27 slices
Tie Tie
Force Force
Norm Tan
(lbs)(los)
O. O.
O.0,
O.O.
O.O.
O.O.
O.O.
O.0,
O. O.
O.O.
O.O.
O. O.
O.O.
O.O.
O. O.
O.O.
O. O.
O. O.
O. O.
O.O.
O.O.
o.o.
o.0,
weight
(los)
328.8
2002.5
1095.4
2670.4
4296.2
4129.8
2027.9
1476.2
7966.3
7179.7
7544.8
6566,0
5958.9
8626.9
33399.1
23826,0
6394.8
18108.4
10593.7
34780.7
17164.0
11946.5
Width
(ft)
7.6
12.2
4.8
6.0
5.0
3.5
1.5
1.0
5.0
4.0
3.0
2.0
1.7
2.3
8.0
5.0
1.3
3.7
2.0
6.0
2.9
2.1
Soil Total Saturated Cohesion Friction Pore Pressure Piez.
Type Unit Wt.Unit Wt.Intercept Angle Pressure Constant Surface
No.(pcf)(pcf)(psf)(deg)Paramo (psf)No.
1 104.5 110.0 220.0 27.0 0.00 0.0 0
A Critical Failure Surface Searching Method,Using A Random
Technique For Generating Circular Surfaces,Has Been Specified.
500 Trial Surfaces Have Been Generated.
25 Surface(s)Initiate(s)From Each Of 20 Points Equally Spaced
Along The Ground Surface Between X =21.00(ft)
and X =47.00(ft)
Each Surface Terminates Between X =101.00(ft)
and X =219.00(ft)
Unless Further Limitations Were Imposed,The Minimum Elevation
At Which A Surface Extends Is Y =O.OO(ft)
20.00(ft)Line Segments Define Each Trial Failure Surface.
Following Are Displayed The Ten Most Critical Of The Trial
Failure Surfaces Evaluated.They Are
Ordered -Most Critical First.
* *Safety Factors Are Calculated By The Modified Bishop Method
Total Number of Trial Surfaces Attempted =500
Number of Trial Surfaces With Valid FS =500
Statistical Data On All Valid FS Values:
FS Max =1.249 FS Min =0.765 FS Ave =1.030
Standard Deviation =0.105 Coefficient of Variation
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft) (ft)
1 22.368 206.304
2 42.239 208.573
3 61.502 213.954
4 79.671 222.313
5 96.292 233.438
6 110.944 247.051
7 123.261 262,808
8 132.932 280.314
9 139.714-299.129
10 143.437 318,780
11 143.694 327.773
Circle Center At X =18.040;Y
Factor of Safety
***0.765 ***
Individual data on the
\'later water
Force Force
Top Bot
(lbs)·(lbs)
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0,0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0,0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
Slice
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
U:\2010\10-036-00\Analyses\Slope Stability\6_s_3.0UT Page 3
23 10.3 56359.8 0.0 0.0 O.O.0.0 0.0
0.0
24 9.7 45114.0 0.0 0.0 O.O.0.0 0.0 0.0
25 6.8 23093.1 0.0 0.0 O.O.0.0 0.0 0.0
26 3.7 6710.2 0.0 0.0 O.O.0.0 0.0 0.0
27 0.3 118.0 0.0 0.0 O.O.0.0 0.0 0.0
Failure Surface Specified By 12 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 23.737 206.608
2 43.586 209.058
3 62.876 214.341
4 81.203 222.348
5 98.187 232.910
6 113.472 245.809
7 126.740 260.774
8 137.714 277.494
9 146.165 295.621
10 151.918 314.775
11 154.852 334.559
12 154.854 335.195
Circle Center At X ~16.778;Y =344.846 ;and Radius =138.413
Factor of Safety
***0.765 ***
Failure Surface Specified By 12 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 26.474 207.216
2 46.339 209.533
3 65.663 214.691
4 84.040 222.581
5 101.088 233.039
6 116.449 245.841
7 129.802 260.736
8 140.869 277.396
9 149.417 295.477
10 155.268 314.602
11 158.299 334.371
12 158.308 335.559
Circle Center At X =20.494 ; Y =345.241 ;and Radius =138.154
Factor of Safety
***0.773 ***
Failure Surface specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 29.211 207.825
2 49.060 210.271
3 68.335 215.610
4 86.614 223.726
5 103.500 234.443
6 118.627 247.527
7 131.664 262.693
8 142.328 279.613
9 150.388 297.917
10 155.668 317.207
11 157.867 335.512
Circle Center At X ~22.597 ;y =343.261 ;and Radius =135.598
Factor of Safety
***0.774 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 25.105 206.912
2 45.010 208.864
3 64.337 214.009
4 82.576 222.214
5 99.249 233.261
6 113.914 246.859
7 126.187 262.651
U:\2010\10-036-00\Analyses\Slope Stability\6_s_3.0UT Page 4
123.723
123.226
149.048
124.674
356.026 ;and Radius
333.088 ;and Radius
330.121 ;and Radius
280.220
299.104
318.805
329.472
23.074 ; Y =
8
9
10
11
Circle
135.743
142.332
145.779
145.893
Center At X ".
Factor of Safety
***0.774 ***
Failure Surface Specified By 12 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 26.474 207.216
2 46.318 209.705
3 65.654 214.818
4 84.135 222.463
5 101.431 232.505
6 117.234 244.763
7 131.261 259.020
8 143.261 275.019
9 153.021 292.476
10 160.366 311.079
11 165.164 330.495
12 165.801 336.348
Circle Center At X =18.059;Y
Factor of Safety
***0.778 ***
Failure Surface Specified By 11 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 31.947 208.458
2 51.833 210.591
3 71.122 215.877
4 89.318 224.178
5 105.952 235.283
6 120.597 248.904
7 132.874 264.692
8 142.470 282.239
9 149.136 301.096
10 152.701 320.775
11 152.966 334.973
Circle Center At X =28.637;Y
Factor of Safety
***0.783 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
~.(ft)(ft)
1 26.474 207.216
2 46.412 208.792
3 65.835 213.559
4 84 :237 221.393
5 101.136 232.090
6 116.090 245.370
7 128.710 260.886
8 138.665 278.233
9 145,694 296.956
10 149.615 316.568
11 150,192 332.816
Circle Center At X ~26,730;Y =330.939;and Radius
Factor of Safety
***0.787 ***
Failure Surface Specified By 12 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 26.474 207.216
2 46.303 209.822
3 65.661 214.849
4 84.252 222.223
5 101.794 231.829
6 118.019 243.523
U:\2010\10-036-00\Analyses\Slope Stability\6_s_3.0UT Page 5
7 132.680 257.126
8 145.555 272.431
9 156.447 289.206
10 165.190 307.193
11 171.651 326.121
12 173.936 337.082
Circle Center At X =15.587;Y =368.232;and Radius =161.383
Factor of Safety
***0.787 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 25.105 206.912
2 45.067 208.145
3 64.561 212.615
4 83.065 220.204
5 100.085 230.709
6 115.164 243.848
7 127.898 259.269
8 137.948 276.561
9 145.045 295.259
10 148.997 314.865
11 149.613 332.366
Circle Center At X =27.579;Y =329.142;and Radius =122.255
Factor of Safety
***0.793 ***
****END OF GSTABL7 OUTPUT ****
8.-.:-3 n~----
3
Sect 3,Lower switch back,Existing condstability,Translation search at road
u:\201 0\1 0·036-00\analyses\slope stablllty\3_s_C4.p12 Run By:John Smilh,XYZ Company 9/28/2010 10:38AM
1-~-'----r------r----'
#FS
a 1.8
b 2.1
c 2.1
d 2.2
e 2.3
-f -2.4
g 2.5
h 2.6
i 2.6
j 2.7
Soil rOo Soil Tolal shlurated Cohesi~ni Frlello--;;-r;ore :Pressure Piez.1
Dese.:Type Unit WI.l,Init Wt.Intercept;Angle Pressure:Conslant SurfaCE(
1 No.(pet)1(pet)(psf)1 (deg)Paramo 1 (pst)No.1
Tma:1 125.0 :130.0 2000.0:50.0 0.00:0.0 0:
Qls 1 2 104.5 1110.0 0.0 21.0 0.00 I 0.0 a 1
Ools:3 104.5 :110.0 570.0:23.0 0.00:0.0 0:
-00152-.4 ---104.5--I.1~O.0-..-Alllso .,-Alliso --0..00 ..,--0.0 ----0-·1
---I .·---t--------··-+----"-----t--.----.--.
I 1 I
I I I
I I I
I 1 I
I 1 I
I I I
I 1 I
I I I
I I I
~_-------:~..--- -~----f ..--- -..-----:---- ---- -- -
1 ........._I I ,
1 1 I
I I I
I 1
I I
1 .5 I~6:.
I :.~
I I I 1
·0 .,..-I -- - -.•.-- - -.•-f-- -••- - - - -.~--1---.
1 1 I
I ,I
I 1 I
I 1 I
I 1 I111
I 1 I
I 1 I
I
I-----_.._-~--------._--I
1
I
I
I,
I
I
I
I
200
500
400
300
100
600
900600
.L-....l..-___I .----'-1_
700 800400500
GSTABL7 v.2 FSmin=1.8
Safety Factors Are Calculated By The Simplified Janbu Method for the case of c=O
o L___I .__~__.1
o 100 200 300
Sect 3,Lower switch back,Existing condstability,Translation search at road
u:\2010\10-036-00\analyses\slope slability\3_s_r_4.plt Run By:John Smith,XYZ Company 9/2812010 10;38AM
600f--"I I I I 1-I ----~'
900800700600300200
1
I I
::I :: :;:
I I t I::::
I I I I--------....~------..----~-----------i----..------~-----------i··---------..'1 - - - - - -..- - --:- -..-- - - - - -:"..- - - - - - - -
I I j I I I I I
:I ::::::
t I I r I I ,I
t I I I I j I I
::,::I ::
I ::I ::I :
L - - - - - - -~- - - - - - - -...-~- - - - - - - ----:-- - - -..- - - - -+--.---------;-...--------1"------..---:----..------:---.-------.-
---......-I I I I I I1-........_I I I I I I I
:I I I I :I
I I I I I
I 3 4 I I ":I
I 1 I 5:I:I I
:1 I 1 I :I I I
I I I I
:I I 1 ..-----t- - - - - - - - --<- -..- - - - - - - ->-•.- - - - - - - --:-.--29'
I I
r I:9
I I I .....15 2IIII:...."'--~I
::::~3 1ti~_~_=_=--I I
::::;1 ..[L.~-~..J.1._~-:_---..;.~__=~~~~...~.58 •__-.--------.:'"---------~..---------.:--------..--+----1 ....- -~--;--1 -....- - -t -:--..-- - - - -1 ::1 1
I I I I I
I I I I [I I I
I I I I I I I I
t I I I I I I I
I I I I I I t I
j i :i i :i i
--..------~-----------.~--.--------i··--------.--~------..----:-----....----i-----------r'-------....-:-------..--
I r I I I I I I
I I I I \I I I
::I ::I ::
t ,l I I I I I
t I :,I :I I
I :I 1 :I I JIII
I I I ..-l _
400 500
o I.----,-I--
o 100
500
300
100
200
400
U:\2010\10-036-00\Analyses\Slope Stability\3_s_r_4.0UT Page 1
***GSTABL7 ***
**GSTABL7 by Garry H.Gregory,P.E.**
**Original Version 1.0,January 1S96;Current Version 2.005,Sept.2006 **
(All Rights Reserved-Unauthorized Use Prohibited)
*********************************************************************************
SLOPE STABILITY ANALYSIS SYSTEM
Modified Bishop,Simplified Janbu,or GLE Method of Slices.
(Includes Spencer &Morgenstern-Price Type Analysis)
Including Pier/Pile,Reinforcement,Soil Nail,Tieback,
Nonlinear Undrained Shear Strength,Curved Phi Envelope,
Anisotropic Soil,Fiber-Reinforced Soil,Boundary Loads,Water
Surfaces,Pseudo-Static &Newmark Earthquake,and Applied Forces.
*********************************************************************************
Analysis Run Date:9/28/2010
Time of Run:10:38AM
Run By:John Smith,XYZ Company
Input Data Filename:U:\2010\10-036-00\Analyses\Slope Stability\3 s r 4.in
Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\3-s-r-4.0UT
Unit System:English ---
Plotted Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\3 s r 4.PLT
PROBLEM DESCRIPTION:Sect 3,Lower switch back,Existing cond
stability,Translation search at road
BOUNDARY COORDINATES
40 Top Boundaries
58 Total Boundaries
Boundary X-Left
No.(ft)
1 0.00
2 42.00
3 108.00
4 153.00
5 199.00
6 236.00
7 332.00
8 339.00
9 341.00
10 343.00
11 355.00
12 362.00
13 378.00
14 383.00
15 407.00
16 414.00
17 427.00
18 442.00
IS 453.00
20 464.00
21 470.00
22 482.00
23 494.00
24 499.00
25 503.00
26 505.00
27 517.00
28 522.00
29 578.00
30 608.00
31 620.00
32 634.00
33 648.00
34 663.00
35 684.00
36 710.00
37 739.00
38 767.00
39 787.00
40 846.00
41 343.00
Y-Left
(ft)
403.00
389.00
356.00
345.00
338.00
335.00
316.00
313.00
311.00
306.00
295.00
292.00
291.00
291.00
289.00
289.00
283.00
280.00
269.00
260.00
251.00
240.00
232.00
233.00
237.00
243.00
265.00
267.00
274.00
289.00
289.00
288.00
286.00
286.00
287.00
292.00
295.00
296.00
296.00
291.00
306.00
X-Right
(ft)
42.00
108.00
153.00
1S9.00
236.00
332.00
339.00
341.00
343.00
355.00
362.00
378.00
383.00
407.00
414.00
427.00
442.00
453.00
464.00
470.00
482.00
494.00
499.00
503.00
505.00
517.00
522.00
578.00
608.00
620.00
634.00
648.00
663.00
684.00
710.00
739.00
767.00
787.00
846.00
864.00
348.00
Y-Right
(ft)
389.00
356.00
345.00
338.00
335.00
316.00
313.00
311.00
306.00
295.00
292.00
291.00
291.00
289.00
289.00
283.00
280.00
269.00
260.00
251.00
240.00
232.00
233.00
237.00
243.00
265.00
267.00
274.00
289.00
289.00
288.00
286.00
286.00
287.00
292.00
295.00
296.00
296.00
291.00
291.00
293.00
Soil Type
Below Bnd
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
4
4
4
4
4
3
3
3
3
3
3
3
1
U:\2010\10-036-00\Analyses\Slope Stability\3_s_r_4.0UT Page 2
35.16 %
1
1
1
3
3
3
3
1
1
1
1
1
1
1
1
1
1
Piez.
Surface
No.
o
o
o
o
Height
(ft}
20.00
36.00
Trial
Pressure
Constant
(psf)
0,0
0.0
0.0
0.0
Friction
Angle
(deg)
23.00
17.00
23.00
288.00
279.00
260.00
250.00
236.00
231.00
232.00
223.00
216.00
213.00
210.00
210.00
207.00
207.00
201.00
201.00
200.00
Pore
Pressure
Paramo
0.00
0.00
0.00
0.00
353.00
368.00
408.00
428.00
458.00
478.00
494,00
416.00
422.00
429,00
458.00
498.00
558.00
604.00
792.00
828.00
864.00
Friction
Angle
(deg)
50.0
21.0
23.0
17.0
42 348.00 293.00
43 353.00 288.00
44 368.00 279.00
45 408.00 260.00
46 428.00 250.00
47 458.00 236.00
48 478.00 231.00
49 408.00 260.00
50 416.00 223.00
51 422.00 216.00
52 429.00 213.00
53 458.00 210.00
54 498.00 210.00
55 558.00 207.00
56 604.00 207.00
57 792.00 201.00
58 828.00 201.00
Default Y-Origin =O.OO(ft)
Default X-Plus Value =O.OO(ft}
Default Y-Plus Value =O.OO(ft)
ISOTROPIC SOIL PARAMETERS
4 Type(s)of Soil
Soil Total Saturated Cohesion
Type Unit Wt.Unit Wt.Intercept
No.(pcf)(pcf)(psf)
1 125.0 130.0 2000.0
2 104.5 110,0 0.0
3 104.5 110.0 570.0
4 104.5 110.0 0.0
ANISOTROPIC STRENGTH PARAMETERS
1 soil type (s)
Soil Type 4 Is Anisotropic
Number Of Direction Ranges Specified 3
Direction Counterclockwise Cohesion
Range Direction Limit Intercept
No.(deg)(psf)
1 22.0 570.00
2 28.0 0.00
3 90.0 570.00
ANISOTROPIC SOIL NOTES:
(1)An input value of 0.01 for C and/or Phi will cause Aniso
C and/or Phi to be ignored in that range.
(2)An input value of 0.02 for Phi will set both Phi and
Cequal to zero,with no water weight in the tension crack.
(3)An input value of 0.03 for Phi will set both Phi and
C equal to zero,with water weight in the tension crack.
Janbus Empirical Coef is being used for the case of c=O
A Critical Failure Surface Searching Method,Using A Random
Technique For Generating Sliding Block Surfaces,Has Been
Specified.
100 Trial Surfaces Have Been Generated.
2 Boxes Specified For Generation Of Central Block Base
Length Of Line Segments For Active And Passive portions Of
Sllding Block Is 15.0
Box X-Left Y-Left X-Right Y-Right
No.(ft)(ft)(ft)(ft)
1 508,00 235.00 540.00 235.00
2 600.00 260.00 660.00 260.00
Following Are Displayed The Ten Most Critical Of The
Failure Surfaces Evaluated.They Are
Ordered -Most Critical First.
* *Safety Factors Are Calculated By The Simplified Janbu Method **
Total Number of Trial Surfaces Attempted =100
Number of Trial Surfaces with Valid FS =100
Statistical Data On All Valid FS Values:
FS Max =12.841 FS Min =1.794 FS Ave 3.988
Standard Deviation =1.402 Coefficient of Variation
Failure Surface Specified By 6 Coordinate Points
U:\2010\10-036-00\Analyses\Slope StabiIity\3_s_r_4.0UT Page 3
Point X-Surf Y-Surf
No.(ft)(ft)
1 495.296 232.259
2 496.986 230.664
3 510.951 225.189
4 605.856 264.542
5 616.427 275.184
6 617.980 289.000
Factor of Safety
***1.794 ***
Individual data on the 12 slices
!'later Water Tie Tie Earthquake
Force Force Force Force Force Surcharge
Slice Width Weight Top Bot Norm Tan Hor Ver Load
No.(ft)(lbs)(lbs) (lbs) (lbs)(Ibs)(lbs)(Ibs)(lbs)
1 1.7 170.7 0.0 0.0 O.O.0.0 0.0 0.0
2 2.0 532.2 0.0 0.0 O.O.0.0 0.0 0.0
3 4.0 2470.1 0.0 0.0 O.O.0.0 0.0 0.0
4 2.0 2525.9 0.0 0.0 O. O.0.0 0.0 0.0
5 6.0 13743.6 0.0 0.0 O.O.0.0 0.0 0.0
6 6.0 20866.9 0.0 0.0 O.O.0.0 0.0 0.0
7 5.0 19471.5 0.0 0.0 O.O.0.0 0.0 0.0
8 56.0 170404.7 0.0 0.0 O.O.0.0 0.0 0.0
9 27.9 64615.0 0.0 0.0 O.O.0.0 0.0 0.0
10 2.1 5118.6 0.0 0.0 O.O.0.0 0.0 0.0
11 8.4 15901.4 0.0 0.0 O.O.0.0 0.0 0.0
12 1.6 1121.7 0.0 0.0 O.O.0.0 0.0 0.0
Failure Surface Specified By 8 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 501.504 235.504
2 505.068 232.378
3 519.256 227.509
4 600.216 254.021
5 610.751 264.699
6 621.300 275.363
7 631,508 286.354
8 632.552 288.103
Factor of Safety
***2.117 ***
Failure Surface Specified By 5 Coordinate Points
Point X-Surf Y-Surf
No.(ft) (ft)
1 504.B60 242.581
2 515.350 232.645
3 618.673 275.361
4 629.078 286.165
5 629.637 288.312
Factor of Safety
***2.137 ***
Failure Surface Specified By 7 Coordinate Points
Point X-Surf Y-Surf
No.(ft) (ft)
1 502.117 236.117
2 511.600 227.177
3 600.392 249.767
4 608.663 262.281
5 615.341 275.712
6 622.879 288.681
7 622.984 288.787
Factor of Safety
***2.232 ***
Failure Surface Specified By 5 Coordinate points
Point X-Surf Y-Surf
No.{ft}(ft)
1 500.632 234.632
2 511,303 231.327
3 628.195 266.941
U:\2010\10-036-00\Analyses\Slope Stability\3_s_r_4.0UT Page 4
4 632.663 281.260
5 638.146 287.408
Factor of Safety
***2.340 **k
Failure Surface Specified By 5 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 503.438 238.315
2 514.053 228.671
3 629.601 268.910
4 637.668 281.556
5 640.246 287.108
Factor of Safety
k**2.435 ***
Failure Surface Specified By 5 Coordinate Points
Point X-Surf '{-Surf
No.(ft)(ft)
1 503.795 239.385
2 511.213 237.016
3 524.693 230.438
4 605.724 276.732
5 611.657 289.000
Factor of Safety
*k*2.542 **k
Failure Surface Specified By 6 Coordinate Points
Point X-Surf '{-Surf
No.(ft)(ft)
1 503.645 238.936
2 504.443 238.145
3 518.865 234.022
4 602.062 263.355
5 605.000 278.065
6 609.048 289.000
Factor of Safety
***2.592 k**
Failure Surface Specified By 5 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 506.753 246.213
2 510.023 244.478
3 521.100 234.364
4 610.704 276.205
5 618.295 289.000
Factor of Safety
***2.638 ***
Failure Surface Specified By 6 Coordinate Points
point X-Surf Y-Surf
No.(ft)(ft)
1 505.820 244.504
2 511.272 241.248
3 525.686 237.094
4 615.436 266.704
5 626.035 277.318
6 635.838 287.737
Factor of Safety
***2.712 ***
****END OF GSTABL7 OUTPUT *k**
900
~______l.....__~__
600 700 800
....L-.._ ...--L_..l-_---..J ----L!__.
100 200 300 400 500
GSTABL7 v.2 FSmin=1.6
Safety Factors Are Calculated By The Modified Bishop Method
Sect 3,Lower switch back,Existing condstability,Circular search at road
u:12010\10·036-00\analyses\Slope stabilily\3_sJ_S.pI2 Run By:John Smith,XYZ Company 9/2812010 10:40AM
;=-'--.~..t .=:==t:=.-'=t===-=="1 ---r-----T----..----r---·-..
#FS Soil,Soil Total Saturated Cohesion Friclion Pore ,Pressure Piez.,\
a 1.6 Oese.:Type Unit WI.4nit WI.Intercept:Angle Pressure:Constant SUrfa~
b 1.6 I No.(pcf)I (pef)(psI)I (deg)Paramo I (psI)No.,
e 1.6 Tma:1 125.0 :130.0 2000.0:SO.O 0.00:0.0 0:
d 1.6 QJs,2 104.5 ,110.0 0.0,21.0 0.00,0.0 0,
e 1.7 Qols:3 104,5 :110.0 570.0:23,0 0.00:0.0 0:
t·-f -1-.7 ·001s2 --4 ..-~04.5 _...1~O.O ....--0.0 --,-.17.0--"0.00 ..~--0,0 - - _..0--,
9 1.7 -;-----------:-------:---.---+----.~h 1.7',,
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Sect 3,Lower switch back,Existing condstability,Circular search at road
u:\2010\10-036-00\analyses\sfope slability\3_sj_S.plt Run By:John Smith,XYZ Company 9/28/2010 10:40AM
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U:\2010\10-036-00\Analyses\Slope Stability\3_s_r_5.0UT Page 1
***GSTABL7 ***
**GSTABL7 by Garry H.Gregory,P.E.**
**Original Version 1.0,January 1996;current Version 2.005,sept.2006 **
(All Rights Reserved-Unauthorized Use Prohibited)
************************k*********************************************k**********
SLOPE STABILITY ANALYSIS SYSTEM
Modified Bishop,Simplified Janbu,or GLE Method of Slices.
(Includes Spencer &Morgenstern-Price Type Analysis)
Including Pier/Pile,Reinforcement,Soil Nail,Tieback,
Nonlinear Undrained Shear Strength,Curved Phi Envelope,
Anisotropic Soil,Fiber-Reinforced Soil,Boundary Loads,Water
Surfaces,Pseudo-Static &Ne~~ark Earthquake,and Applied Forces.
*********************************************************************************
Analysis Run Date:9/28/2010
Time of Run:10:40AM
Run By:John Smith,XYZ Company
Input Data Filename:U:\2010\10-036-00\Analyses\Slope Stability\3 s r 5.in
Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\3=s=r=5.0UT
Unit System:English
Plotted Output ~ilename:U:\2010\10-036-00\Analyses\Slope Stability\3 s r 5.PLT
PROBLEM DESCRIPTION:Sect 3,Lower switch back,Existing cond ---
stability,Circular search at road
BOUNDARY COORDINATES
40 Top Boundaries
58 Total Boundaries
Boundary X-Left
No.(ft)
1 0.00
2 42.00
3 108.00
4 153.00
5 199.00
6 236.00
7 332.00
8 339.00
9 341.00
10 343.00
11 355.00
12 362.00
13 378.00
14 383.00
15 407.00
16 414.00
17 427.00
18 442.00
19 453.00
20 464.00
21 470.00
22 482.00
23 494.00
24 499.00
25 503.00
26 505.00
27 517.00
28 522.00
29 578.00
30 608.00
31 620.00
32 634.00
33 648.00
34 663.00
35 684.00
36 710.00
37 739.00
38 767.00
39 787.00
40 846.00
41 343.00
Y-Left
(ft)
403.00
389.00
356.00
345.00
338.00
335.00
316.00
313.00
311.00
306.00
295.00
292.00
291.00
291.00
289.00
289.00
283.00
280.00
269.00
260.00
251.00
240.00
232.00
233.00
237.00
243.00
265.00
267.00
274.00
289.00
289.00
288.00
286.00
286.00
287.00
292.00
295.00
296.00
296.00
291.00
306.00
X-Right
(ft}
42.00
108.00
153.00
199.00
236.00
332.00
339.00
341.00
343.00
355.00
362.00
378.00
383.00
407.00
414.00
427.00
442.00
453.00
464.00
470.00
482.00
494.00
499.00
503.00
505.00
517.00
522.00
578.00
608.00
620.00
634.00
648.00
663.00
684.00
710.00
739.00
767.00
787.00
846.00
864.00
348.00
Y-Right
(ft)
389.00
356.00
345.00
338.00
335.00
316.00
313.00
311.00
306.00
295.00
292.00
291.00
291.00
289.00
289.00
283.00
280.00
269.00
260.00
251.00
240.00
232.00
233.00
237.00
243.00
265.00
267.00
274.00
289.00
289.00
288.00
286.00
286.00
287.00
292.00
295.00
296.00
296.00
291.00
291.00
293.00
Soil Type
Below Bnd
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
4
4
4
4
4
3
3
3
3
3
3
3
1
U:\2010\10-036-00\Analyses\Slope Stability\3_s_r_5.0UT Page 2
* *
21.31 %
1
1
1
3
3
3
3
1
1
1
1
1
1
1
1
1
1
Piez.
Surface
No.o
o
o
o
288.00
279.00
260.00
250.00
236.00
231.00
232.00
223.00
216.00
213.00
210.00
210.00
207.00
207.00
201.00
201.00
200.00
353.00
368.00
408.00
428.00
458.00
478.00
494.00
416.00
422.00
429.00
458.00
498.00
558.00
604.00
792.00
828.00
864.00
42 348.00 293.00
43 353.00 288.00
44 368.00 279.00
45 408.00 260.00
46 428.00 250.00
47 458.00 236.00
48 478.00 231.00
49 408.00 260.00
50 416.00 223.00
51 422.00 216.00
52 429.00 213.00
53 458.00 210.00
54 498.00 210.00
55 558.00 207.00
56 604.00 207.00
57 792.00 201.00
58 828.00 201.00
Default Y-Origin =O.OO(ft)
Default X-Plus Value =O.OO(ft)
Default Y-Plus Value =O.OO(ft)
ISOTROPIC SOIL PARAMETERS
4 Type(s)of Soil
Soil Total Saturated Cohesion Friction Pore Pressure
Type Unit Wt.Unit Wt.Intercept Angle Pressure Constant
No.(pcf)(pcf)(psf)(deg)Paramo (psf)
1 125.0 130.0 2000.0 50.0 0.00 0.0
2 104.5 110.0 0.0 21.0 0.00 0.0
3 104.5 110.0 570.0 23.0 0.00 0.0
4 104.5 110.0 0.0 17.0 0.00 0.0
A Critical Failure Surface Searching Method,Using A Random
Technique For Generating Circular Surfaces,Has Been Specified.
500 Trial Surfaces Have Been Generated.
25 Surface(s)Initiate(s)From Each Of 20 Points Equally Spaced
Along The Ground Surface Between X =500.00(ft)
and X =510.00(ft)
Each Surface Terminates Between X =615.00(ft)
and X =648.00(ft)
Unless Further Limitations Were Imposed,The Minimum Elevation
At Which A Surface Extends Is Y =O.OO(ft)
10.00(ft)Line segments Define Each Trial Failure Surface.
Following Are Displayed The Ten Most Critical Of The Trial
Failure Surfaces Evaluated.They Are
Ordered -Most Critical First.
*k Safety Factors Are Calculated By The Modified Bishop Method
Total Number of Trial Surfaces Attempted =500
Number of Trial Surfaces With Valid FS =500
Statistical Data On All Valid FS Values:
FS Max ~4.140 FS Min =1.618 FS Ave =2.547
Standard Deviation =0.543 Coefficient of Variation
Failure Surface Specified By 16 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 500.00~234.000
2 509.744 236.248
3 519.432 238.728
4 529.058 241.438
5 538.616 244.376
6 548.102 247.542
7 557.509 250.933
8 566.833 254.548
9 576.068 258.383
10 585.209 262.438
11 594.251 266.710
12 603.188 271.196
13 612.016 275.894
14 620.729 280.801
15 629.323 285.915
16 632.783 288.087
U:\2010\10-036-00\Analyses\S1ope Stability\3_s_r_5.0UT Page 3
Circle Center At K =410.896 ;Y =642.784 ;and Radius =418.382
Factor of Safety
***1.618 ***
Individual data on the 22 slices
\'later Water Tie Tie Earthquake
Force Force Force Force Force Surcharge
Slice Width Weight Top Bot Norm 'ran Hor Ver Load
No.(ft)(lba)(lbs) (lbs)(lbs) (lbs)(lbs) (lbs)(lbs)
1 3.0 361.8 0.0 0.0 O.O.0.0 0.0 0.0
2 2.0 1061.1 0.0 0.0 o.o.0.0 0.0 0.0
3 4.7 5774.6 0.0 0.0 O.o.0.0 0.0 0.0
4 7.3 16053.7 0.0 0.0 o. o.0.0 0.0 0.0
5 2.4 6879.0 0.0 0.0 o.o.0.0 0.0 0.0
6 2.6 7352.9 0.0 0.0 o.o.0.0 0.0 0.0
7 7.1 19910.7 0.0 0.0 o.O.0.0 0.0 0.0
8 9.6 25543.6 0.0 0.0 o.O.0.0 0.0 0.0
9 9.5 23503.3 0.0 0.0 o.o.0.0 0.0 0.0
10 9.4 21247.4 0.0 0.0 O. O.
0.0 0.0 0.0
11 9.3 18786.4 0.0 0.0 o.O.0.0 0.0 0.0
12 9.2 16131.9 0.0 0.0 O.o.0.0 0.0 0.0
13 1.9 3041.7 0.0 0.0 O.o.0.0 0.0 0.0
14 7.2 11272.5 0.0 0.0 O.O.0.0 0.0 0.0
15 9.0 14447.7 0.0 0.0 O.O.0.0 0.0 0.0
16 8.9 14389.0 0.0 0.0 O.O.0.0 0.0 0.0
17 4.8 7703.8 0.0 0.0 O.O.0.0 0.0 0.0
18 4.0 5948.5 0.0 0.0 O.O.0.0 0.0 0.0
19 8.0 9059.0 0.0 0.0 O.O.0.0 0.0 0.0
20 0.7 638.3 0.0 0.0 O.O.0.0 0.0 0.0
21 8.6 4744.5 0.0 0.0 O.O.0.0 0.0 0.0
22 3.5 437.4 0.0 0.0 O.O.0.0 0.0 0.0
Failure Surface Specified By 16 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 500.000 234.000
2 509.675 236.529
3 519.310 239.207
4 528.902 242.035
5 538.448 245.011
6 547.948 248.134
7 557.398 251.405
8 566.796 254.821
9 576.141 258.383
10 585.428 262.089
11 594.658 265.939
12 603.826 269.932
13 612.931 274.066
14 621.971 278.341
15 630.944 282.756
16 639.627 287.196
Circle Center At X =341.796 ;Y =859.089 ;and Radius 644.799
Factor of Safety
***1.632 ***
Failure Surface Specified By 15 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 500.526 234.526
2 510.341 236.442
3 520.089 238.675
4 529.758 241.223
5 539.341 244.084
6 548.825 247.254
7 558.201 250.729
8 567.460 254.508
9 576.592 258.584
10 585.586 262.955
11 594.434 267.615
12 603.126 272.560
13 611.653 277.784
U:\2010\10-036-00\Analyses\Slope Stability\3_s_r_5.0UT page 4
14 620.006 283.282
15 627.363 288.474
Circle Center At X =446.395 ;Y =537.954 ;and Radius '"308.219
Factor of Safety
***1.633 ***
Failure Surface Specified By 15 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 500.000 234.000
2 509.937 235.118
3 519.805 236.741
4 529.576 238.867
5 539.227 241.488
6 548.730 244.598
7 558.063 248.190
8 567.200 252.253
9 576.118 256.778
10 584.794 261.752
11 593.204 267.162
12 601.327 272.995
13 609.141 279.234
14 616.627 285.865
15 619.822 289.000
Circle Center At X =483.088 i Y =429.090 ;and Radius 195.821
Factor of Safety
***1.649 ***
Failure Surface Specified By 15 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 501.053 235.053
2 510.878 236.911
3 520.635 239.105
4 530.310 241.633
5 539.893 244.492
6 549.371 247.679
7 558.735 251.189
8 567.973 255.018
9 577.073 259.163
10 586.026 263.617
11 594.821 268.377
12 603.447 273.436
13 611.895 278.788
14 620.153 284.426
15 625.815 288.585
Circle Center At X =451.880 ; Y '"522.003 ;and Radius 291.133
Factor of Safety
***1.650 ***
Failure Surface Specified By 17 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ftl
1 500.526 234.526
2 510.427 235.933
3 520.284 237.616
4 530.091 239.572
5 539.840 241.801
6 549.522 244.300
7 559.131 247.068
8 568.660 250.103
9 578.100 253.402
10 587.445 256.962
11 596.687 260.782
12 605.818 264.857
13 614.833 269.185
14 623.724 273.762
15 632.484 278.586
16 641.106 283.651
17 645.444 286.365
Circle Center At X =454.965 ; Y 590.617 and Radius 358.993
U:\2010\10-036-00\Analyses\Slope Stabi1ity\3_s_r_5.0UT page 5
Factor of Safety
***1.657 ***
Failure Surface Specified By 17 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 500.000 234.000
2 509.993 234.387
3 519.959 235.201
4 529.B82 236.442
5 539.742 238.107
6 549.523 240.192
7 559.204 242.694
8 568.770 245.609
9 578.202 248.931
10 587.484 252.654
11 596.597 256.771
12 605.525 261.274
13 614.253 266.156
14 622.763 271.4.07
15 631.040 277.01B
16 639.070 282.979
17 643.575 286.632
Circle Center At X =495.969;Y =467.371;and Radius
Factor of Safety
***1.661 ***
Failure Surface Specified By 16 Coordinate points
Point X-Surf Y-Surf
No.(ft)1ft)
1 501.579 235.579
2 511.482 236.966
3 521.337 238.667
4 531.132 240.678
5 540.859 242.999
6 550.508 245.627
7 560.068 248.559
8 569.531 251.793
9 57B.B86 255.325
10 588.125 259.151
11 597.239 263.268
12 606.217 267.672
13 615.051 272.357
14 623.733 277.320
15 632.252 282.556
16 639.352 287.235
Circle Center At X =462.822;Y 548.505 ;and Radius
Factor of Safety
***1.663 ***
Failure Surface Specified By 16 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 500.000 234.000
2 509.998 233.809
3 519.990 234.213
4 529.940 235.209
5 539.814 236./95
6 549.576 238.964
7 559.192 241./09
8 568.627 245.021
9 577.850 248.886
10 586.827 253.293
11 595.526 258.226
12 603.916 263.666
13 611.969 269.595
14 619.656 275.991
15 626.949 282.833
16 631.976 288.145
Circle Center At X =508.252;Y =401.801 and Radius
Factor of Safety
233.406
315.317
168.003
U:\2010\10-036-00\Analyses\Slope Stability\3_s_r_5.0UT Page 6
***1.664 ***
Failure Surface Specified By 16 Coordinate Points
Point X-Surf Y-Surf
No.(ft) (ft)
1 501.579 235.579
2 511.537 236.492
3 521.443 237.858
4 531.277 239.675
5 541.017 241.939
6 550.644 244.645
7 560.138 247.788
8 569.478 251.361
9 578.645 255.356
10 587.620 259.765
11 596.385 264.580
12 604.921 269.789
13 613.210 275.383
14 621.235 281.349
15 628.980 287.675
16 629.686 288.308
Circle Center At X ~486.612;Y 453.928 and Radius
Factor of Safety
***1.665 ***
****END OF GSTABL7 OUTPUT ****
218.861
900
..--..18
1
800
Sect 3,Lower switch back,Exist.cond.stabilitity,eirc search at bluff face
u:\2010\10-036-00\analyses\Slope stablllty\3_s_C3.pI2 Run By:John Smith,XYZ Company 9/28/2010 10:47AM=:=-=:f':--=--±=.~.'1 .-~.----~---~._-.
Soil I Soil Total Saturated COhoesion FrIC.lion por.e I Pressure PieZ'l IDesc.:Type Unit WI.l/nit WI.Intercept:Angle Pressure~Constant SUrfa~:
I No.(pef)I (pef)(psf),(deg)Param"(psf)No.,I
Tma:1 125.0 :130.0 2000.0:50.0 0.00:0.0 0::
Ols I 2 104.5 ,110.0 0.0 I 21.0 0.00 I 0.0 0 I Ioors:,.3 104.5 :110.0 5!~~3.0 O.O~:0.0 0 _::I I____~_-~I ••L ••I ••~••L ~-_••.•
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GSTABL7 v.2 FSmin=1.4
Safety Factors Are Calculated By The Modified Bishop Method
o
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500
300
200
400
100
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Sect 3,Lower switch back,Exist.condo stabilitity,eirc search at bluff face
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I 1 6 'I I 1 I
I I 1 I
I ,I 1------..---~--..-------..~-- ----.-..- --:--...~6P
I I I
I I I
I ,I
r I I
I ,I
I I I
I
I
I
---------~_.._-----_....~---_.._-----_.
I
I
I
I
I
I
I
I
I
500
200
300
100
400
U:\2010\10-036-00\Analyses\Slope Stability\3_s_r_3.0UT Page 1
***GSTABL7 *****GSTABL7 by Garry H.Gregory,P.E.**
**Original Version 1.0,January 1996;Current Version 2.005,Sept.2006 **
(All Rights Reserved-Unauthorized Use Prohibited)
*********************************************************************************
SLOPE STABILITY ANALYSIS SYSTEM
Modified Bishop,Simplified Janbu,or GLE Method of Slices.
(Includes Spencer &Morgenstern-Price Type Analysis)
Including Pier/Pile,Reinforcement,Soil Nail,Tieback,
Nonlinear Undrained Shear Strength,Curved Phi Envelope,
Anisotropic Soil,Fiber-Reinforced Soil,Boundary Loads,Water
Surfaces,Pseudo-Static &Newmark Earthquake,and Applied Forces.
*********************************************************************************
Analysis Run Date:9128/2010
Time of Run:10 :47AN
Run By:John Smi th,XYZ Company
Input Data Filename:U:\2010\10-036-00\Analyses\Slope Stability\3 s r 3.in
Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\3=s=r=3.0UT
unit System:English
Plotted Output Filename:U:\2010\10-036-00\Analyses\Slope stability\3_s_r_3.PLT
PROBLEM DESCRIPTION:Sect 3,Lower switch back,Exist.condo
stabilitity,Cire search at bluff face
BOUNDARY COORDINATES
40 Top Boundaries
58 Total Boundaries
Boundary X-Left
No.(ft)
1 0.00
2 42.00
3 108.00
4 153.00
5 199.00
6 236.00
7 332.00
8 339.00
9 341.00
10 343.00
11 355.00
12 362.00
13 378.00
14 383.00
15 407.00
16 414.00
17 427.00
18 442.00
19 453.00
20 464.00
21 470.00
22 482.00
23 494.00
24 499.00
25 503.00
26 505.00
27 517.00
28 522.00
29 578.00
30 608.00
31 620.00
32 634.00
33 648.00
34 663.00
35 684.00
36 710.00
37 739.00
38 767.00
39 787.00
40 646.00
41 343.00
Y-Left
(ft)
403.00
389.00
356.00
345.00
338.00
335.00
316.00
313.00
311.00
306.00
295.00
292.00
291.00
291.00
289.00
289.00
283.00
280.00
269.00
260.00
251.00
240.00
232.00
233.00
237.00
243.00
265.00
267.00
274.00
289.00
289.00
288.00
286.00
286.00
287.00
292.00
295.00
296.00
296.00
291.00
306.00
X-Right
{ftl
42.00
108.00
153.00
199.00
236.00
332.00
339.00
341.00
343.00
355.00
362.00
378.00
383.00
407.00
414.00
427.00
442.00
453.00
464.00
470.00
482.00
494.00
499.00
503.00
505.00
517.00
522.00
578.00
608.00
620.00
634.00
648.00
663.00
684.00
710.00
739.00
767.00
787.00
846.00
864.00
348.00
Y-Right
(ft)
389.00
356.00
345.00
338.00
335.00
316.00
313.00
311.00
306.00
295.00
292.00
291.00
291.00
289.00
289.00
283.00
280.00
269.00
260.00
251.00
240.00
232.00
233.00
237.00
243.00
265.00
267.00
274.00
289.00
289.00
288.00
286.00
286.00
287.00
292.00
295.00
296.00
296.00
291.00
291.00
293.00
Soil Type
Belo~l Bud
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
1
U:\2010\10-036-00\Analyses\Slope Stability\3_s_r_3.0UT Page 2
**
26.14 %
1
1
1
3
3
3
3
1
1
1
1
1
1
1
1
1
1
Piez.
Surface
No.
o
o
o
288.00
279.00
260.00
250.00
236.00
231.00
232.00
223.00
216.00
213.00
210,00
210.00
207.00
207.00
201.00
201.00
200.00
353.00
368.00
408.00
428.00
458.00
478,00
494.00
416.00
422.00
429.00
458.00
498.00
558.00
604.00
792.00
828.00
864.00
42 348.00 293.00
43 353.00 288.00
44 368.00 279.00
45 408.00 260.00
46 428.00 250.00
47 458.00 236.00
48 478.00 231.00
49 408.00 260.00
50 416.00 223.00
51 422.00 216.00
52 429.00 213.00
53 458.00 210.00
54 498.00 210.00
55 558.00 207.00
56 604.00 207.00
57 792.00 201.00
58 828.00 201.00
Default Y-Origin ~O.OO(ft)
Default X-Plus Value =O.OO(ft)
Default Y-Plus Value =O.OO(ft)
ISOTROPIC SOIL PARAM~TERS
3 Type(s)of Soil
Soil Total Saturated Cohesion Friction Pore Pressure
Type Unit Wt.Unit wt.Intercept Angle Pressure Constant
No.(pef)(pcf}(psf)(deg)Paramo (psf)
1 125.0 130.0 2000.0 50.0 0.00 0.0
2 104.5 110.0 0.0 21.0 0.00 0.0
3 104.5 110.0 570.0 23.0 0.00 0.0
A Critical Failure Surface Searching Method,Using A Random
Technique For Generating Circular Surfaces,Has Been Specified.
400 Trial Surfaces Have Been Generated.
40 Surface(s)Initiate(s)From Each Of 10 Points Equally Spaced
Along The Ground Surface Between X =500.00(ft)
and X =505.00(ft)
Each Surface Terminates Between X =530.00(ft)
and X =575.00(ft)
Unless Further Limitations Were Imposed,The Minimum Blevation
At Which A Surface Extends Is Y =O.OO(ft)
2,00(ft)Line Segments Define Each Trial Failure Surface.
Following Are Displayed The Ten Most Critical Of The Trial
Failure Surfaces Evaluated.They Are
Ordered -Most Critical First.
* *Safety Factors Are Calculated By The Modified Bishop Method
Total Number of Trial Surfaces Attempted =400
Number of Trial Surfaces With Valid FS =400
Statistical Data On All Valid FS Values:
FS Max =4.046 FS Min =1.438 FS Ave =2.292
Standard Deviation =0.599 Coefficient of Variation =
~ailure Surface Specified By 27 Coordinate Points
Point X-Surf Y-Surf
No.(ft){ft)
1 500.000 234,000
2 501.971 234.342
3 503.920 234.788
4 505,844 235.336
5 507.735 235.986
6 509.590 236.735
7 511.402 237.581
8 513.166 238.522
9 514.879 239.556
10 516.534 240.678
11 518.127 241.887
12 519.654 243.179
13 521.111 244.549
14 522.493 245.995
15 523.796 247.512
16 525.017 249.096
17 526.152 250.743
U:\2010\10-036-00\Analyses\Slope Stability\3_s_r_3.0UT Page 3
18 527.199 252.447
19 528.154 254.204
20 529.014 256.010
21 529.777 257.859
22 530.442 259.745
23 531.005 261.664
24 531.466 263.610
25 531.823 265.578
26 532.075 267.562
27 532.127 268.266
Circle Center At X =494.538 ;Y =271.328 and Radius 37.726
Factor of Safety
***1.438 ***
Individual data on the 30 slices
water water Tie Tie Earthquake
Force Force Force Force
Force Surcharge
Slice ~lidth Weight Top Bot Norm Tan Hor Ver Load
No.(ft)(lbs)(lbs)(lbs)(lbs)(lbs)(lbs)(lbs)(lbs)
1 2.0 167.7 0.0 0.0 O.O.0.0 0.0 0.0
2 1.0 217.9 0.0 0.0 O.O.0.0 0.0 0.0
3 0.9 355.6 0.0 0.0 O.O.0.0 0.0 0.0
4 1.1 726.5 0.0 0.0 O.O.0.0 0.0 0.0
5 0.8 754.3 0.0 0.0 O.O.0.0 0.0 0.0
6 1.9 2099.1 0.0 0.0 O.O.0.0 0.0 0.0
7 1.9 2587.8 0.0 0.0 O.O.0.0 0.0 0.0
8 1.8 3014.2 0.0 0.0 o.O.0,0 0.0 0.0
9 1.8 3375.2 0.0 0.0 O.O.0.0 0.0 0.0
10 1.7 3668.8 0.0 0.0 O.o.0.0 0.0 0.0
11 1.7 3893.8 0.0 0.0 O.O.0.0 0.0 0.0
12 0.5 1155.0 0.0 0.0 O.o.0.0 0.0 0.0
13 1.1 2799.9 0.0 0.0 O.O.0.0 0.0 0.0
14 1.5 3706.1 0.0 0.0 O.O.0.0 0.0 0.0
15 1.5 3422.9 0.0 0.0 O.O.0.0 0.0 0.0
16 0.9 2026.0 0.0 0.0 o.o.0.0 0.0 0.0
17 0.5 1096.6 0.0 0.0 O.O.0.0 0.0 0.0
18 1.3 2776.9 0.0 0.0 o.o.0.0 0.0 0.0
19 1.2 2423.9 0.0 0.0 o.o.0.0 0.0 0.0
20 1.1 2079.7 0.0 0.0 o.O.0.0 0.0 0.0
21 1.0 1748.6 0.0 0.0 O.o.0.0 0.0 0.0
22 1.0 1435.a 0.0 0.0 O.O.0.0 0.0 0.0
23 0.9 1143.1 0.0 0.0 O.o.0.0 0.0 0.0
24 0.8 876.7 0.0 0.0 O.O.0.0 0.0 0.0
25 0.7 639.5 0.0 0.0 O.o.0.0 0.0 0.0
26 0.6 434.9 0.0 0.0 O.O.0.0 0.0 0.0
27 0.5 265.8 0.0 0.0 O.O.0.0 0.0 0.0
28 0.4 134.8 0.0 0.0 O.O.0.0 0.0 0.0
29 0.3 44.1 0.0 0.0 o.O.0.0 0.0
0.0
30 0.1 1.9 0.0 0.0 O.O.0.0 0.0 0.0
Failure Surface Specified By 28 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 500.000 234.000
2 501.953 234.430
3 503.886 234.943
4 505.795 235.540
5 507.677 236.218
6 509.527 236.976
7 511.344 237.814
8 513.122 238.729
9 514.859 239.719
10 516.553 240.784
11 518.198 241.921
12 519.793 243.127
13 521.335 244.401
14 522.821 245.740
15 524.247 247.142
16 525.612 248.604
17 526.912 250.124
U:\2010\10-036-00\Analyses\Slope Stability\3_s_r_3.0UT Page 4
276.837 ;and Radius
279.507 ;and Radius
18
19
20
21
22
23
24
25
26
27
28
Circle
528.146 251.698
529.310 253.324
530.404 254.998
531.425 256.718
532.370 258.481
533.239 260.282
534.029 262.119
534.739 263.989
535.369 265.887
535.915 267.811
536.143 268.768
Center At X =491.019;Y
Factor of Safety
***1.447 ***
Failure Surface Specified By 27 Coordinate
Point X-Surf Y-Surf
No.(ft)(ft)
1 500.556 234.556
2 502.506 234.996
3 504.435 235.526
4 506.337 236.145
5 508.208 236.852
6 510.044 237.645
7 511.841 238.522
8 513.596 239.481
9 515.305 240.521
10 516.963 241.638
11 518.568 242.832
12 520.116 244.098
13 521.604 245.435
14 523.028 246.839
15 524.385 248.308
16 525.673 249.839
17 526.888 251.427
18 528.029 253.070
19 529.092 254.764
20 530.075 256.505
21 530.977 258.291
22 531.794 260.116
23 532.527 261.977
24 533.172 263.870
25 533.729 265.791
26 534.196 267.736
27 534.351 268.544
Circle Center At X ~492.037;Y
Factor of Safety
***1.449 ***
Failure Surface Specified By 26 Coordinate
Point X-Surf Y-Surf
No.(ft)(ft)
1 500.556 234.556
2 502.459 235.169
3 504.336 235.861
4 506.181 236.632
5 507.993 237.479
6 509.768 238.401
7 511.502 239.396
8 513.194 240.464
9 514,839 241.601
10 516.435 242.806
11 517,979 244.077
12 519.469 245.411
13 520.901 246.807
14 522.274 248.261
15 523.585 249.772
16 524.831 251.336
17 526.011 252.951
18 527.122 254.614
Points
points
46.385
43.131
U:\2010\10-036-00\Analyses\Slope Stability\3_s_r_3.0UT Page 5
37.714
47.715
272.046 i and Radius
19
20
21
22
23
24
25
26
Circle
528.163 256.322
529.131 258.072
530.025 259.862
530.843 261.687
531.584 263.544
532.247 265.431
532.830 267.344
533.100 268.388
Center At X =486.889 i Y =280.272 i and Radius
Factor of Safety
***1.451 ***
Failure Surface Specified By 27 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 500.556 234.556
2 502.537 234.826
3 504.502 235.201
4 506.444 235.680
5 508.357 236.261
6 510.238 236.942
7 512.079 237.722
8 513.877 238.599
9 515.625 239.570
10 517.320 240.632
11 518.956 241.783
12 520.528 243.018
13 522.033 244.336
14 523.466 245.731
15 524.823 247.200
16 526.101 248.739
17 527.294 250.344
18 528.401 252.010
19 529.419 253.732
20 530.343 255.505
21 531.172 257.325
22 531.904 259.186
23 532.536 261.084
24 533.066 263.012
25 533.493 264.966
26 533.817 266.940
27 533.988 268.498
Circle Center At X =496.450 i Y
Factor of Safety
***1.461 ***
Failure Surface Specified By 28 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 500.556 234.556
2 502.521 234.928
3 504.467 235.388
4 506.391 235.935
5 508.288 236.568
6 510.155 237.285
7 511.988 238.085
8 513.783 238.966
9 515.537 239.927
10 517.246 240.966
11 518.907 242.080
12 520.516 243.268
13 522.071 244.527
14 523.567 245.854
15 525.002 247.246
16 526.374 248.702
17 527.678 250.218
18 528.914 251.791
19 530.078 253.417
20 531.167 255.094
21 532.181 256.819
U:\2010\10-036-00\Analyses\Slope Stability\3_s_r_3.0UT Page 6
278.514 ;and Radius
284.777 ;and Radius
22
23
24
25
26
27
28
Circle
533.116 258.587
533.970 260.395
534.743 262.240
535.432 264.117
536.037 266.023
536.555 267.955
536.752 268.844
Center At X ~493.252;Y
Factor of Safety
***1.463 ***
Failure Surface Specified By 28 Coordinate
Point X-Surf Y-Surf
No.(ft) (ft)
1 500.556 234.556
2 502.499 235.030
3 504.422 235.579
4 506.322 236.202
5 508.197 236.899
6 510.043 237.668
7 511.858 238.508
8 513.639 239.418
9 515.383 240.397
10 517.088 241.443
11 518.751 242.554
12 520.370 243.728
13 521.941 244.965
14 523.464 246.262
15 524.935 247.617
16 526.352 249.028
17 527.714 250.493
18 529.017 252.010
19 530.261 253.576
20 531.443 255.190
21 532.561 256.848
22 533.614 258.548
23 534.600 260.288
24 535.518 262.065
25 536.366 263.877
26 537.143 265.719
27 537.848 267.591
28 538.331 269.041
Circle Center At X =489.337;Y
Factor of Safety
***1.465 ***
Failure Surface specified By 27 Coordinate
Point X-Surf Y-Surf
No.(ft)(ft)
1 501.111 235.111
2 503.089 235.405
3 505.049 235.804
4 506.984 236.309
5 50B.890 236.917
6 510.760 237.626
7 512.589 238.435
8 514.371 239.342
9 516.103 240.343
10 517.778 241.436
11 519.392 242.617
12 520.939 243.884
13 522.417 245.232
14 523.820 246.658
15 525.144 248.157
16 526.385 249.725
17 527.540 251.357
18 528.606 253.050
19 529.579 254.797
20 530.456 256.594
21 531.236 258.436
Points
Points
44.561
51.459
U:\2010\10-036-00\Analyses\Slope Stability\3_s_r_3.0UT Page 7
49.560
37.146
282.900 ;and Radius
22
23
24
25
26
27
Circle
531.915 260.317
532.492 262.232
532.965 264.176
533.333 266.141
533.594 268.124
533.620 268.452
Center At X =496.650;Y =271.988;and Radius
Factor of Safety
***1.467 ***
Failure Surface Specified By 29 Coordinate Points
Point X-Surf Y-Surf
~.(ft)(ft)
1 500.000 234.000
2 501.966 234.365
3 503.916 234.809
4 505.847 235.332
5 507.755 235.932
6 509.637 236.608
7 511.490 237.360
8 513.312 238.186
9 515.099 239.085
10 516.848 240.055
11 518.556 241.095
12 520.221 242.203
13 521.840 243.377
14 523.410 244.616
15 524.929 245.917
16 526.394 247.278
17 527.804 248.697
18 529.154 250.172
19 530.445 251.700
20 531.672 253.279
21 532.835 254.907
22 533.931 256.579
23 534.959 258.295
24 535.916 260.051
25 536.802 261.844
26 537.615 263.671
27 538.354 265.530
28 539.017 267.417
29 539.562 269.195
Circle Center At X =491.938 i Y
Factor of Safety
***1.470 ***
Failure Surface Specified By 27 Coordinate Points
Point X-Surf Y-Surf
No.(ft) (ft)
1 501.111 235.111
2 503.019 235.712
3 504.903 236.381
4 506.763 237.118
5 508.595 237.920
6 510.396 238.788
7 512.166 239.721
8 513.901 240.716
9 515.599 241.773
10 517.257 242.890
11 518.875 244.066
12 520.449 245.300
13 521.978 246.589
14 523.460 247.933
15 524.892 249.328
16 526.274 250.775
17 527.602 252.270
18 528.876 253.812
19 530.094 255.398
20 531.253 257.028
21 532.354 258.698
55.647andRadius
U;\2010\10-036-00\Analyses\Slope Stability\3_s_r_3.0UT Page 8
533.394 260.406
534.371 262.151
535.286 263.929
536.136 265.740
536.920 267.580
537.439 268.930
Center At X ~485.346;y 288.479
Factor of Safety
***1.471 ***
****END OF GSTABL7 OUTPUT ****
22
23
24
25
26
27
Circle
900
~--.J
800
#FS
a 1.0
b 1.0
c 1.0
d 1.0
e 1.0
-f -1-.0
9 1.0
h 1.0
i 1.0
j 1.0
Sect 3,Lower switch back,Amount of bluff face erosion for failure
u:\2010\10-036-00\analyses\slope stabffity\3sr_6.4.pI2 Run By:John Smith,XYl Company 9/28/2010 10;50AM
--\--=----~--~I - ---~-I
Soil,Soil Tolal Saturated Cohesion Friction Pore ,Pressure Plez.I ,I
Dese.:Type Unit WI.I.Jnil WI.Intercept:Angle Pressure:Constant Surface;::
I No.(pet),(pef)(psf),(deg)Param.,(pst)No.I I I
Tma:1 125.0 :130.0 2000.0:50.0 0.00:0.0 0:::
Qls I 2 104.5 ,110.0 0.0,21.0 0.00,0.0 0,I I
Qols:3 104.5 :110.0 570.0:23.0 0.00:0.0 0:::I
-Qols2--4 - --104.5 -..~1~O.O-- --0.0--,--:f7.{)---0.00--,---0.0 ----0.--.--..-.---'-------.-l--..----- - -----<-.•--------
.......---.-------r-----.-----__+_____--------t-------t I I
I I I I I I I I
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t I ,'51 33 ,I t
::::11 .--._5~_A..._~44·5~___:J6 57....- - ---..--,..-.- - - - -..- -..,....-..- - -....--,-..- - - ----- -..r --..-.:1-....-~--,-..~..--....-t -'i - - - -.-- - - --1'.-- - ---- --~"~---1--..
I ,I f I I I I
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-..- - - --..-..,- -..-- - - -..--r -..--- - --.---1-....- - - - --- - T -•..- - - -••-- --1-,".-- - - - - - - -"1 ••- - - - - - - - --r"- - - - - - - ---~1 - - - -..- - - - -~
r I I I I J I I
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~I .__.L-.L-..L-.__--.l-I
100 200 300 400 500 600 700
GSTABL7 v.2 FSmin=1.0
Safety Factors Are Calculated By The Modified Bishop Method
o
o
200
500
600
300
400
100
100 ~--.--- -.
1
Sect 3,Lower switch back,Amount of bluff face erosion for failure
u;\2010110-Q36·QOlanalyseslslope stabilltyl3sr_6.4.pll Run By:John Smith,XYZ Company 9/28/2010 10:51AM.--..-r----~-..-.~----~I ------r-~---.__r_..-
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200
300
500
400
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U:\2010\10-036-00\Analyses\Slope Stability\3sr_6.4.0UT Page 1
***GSTABL7 *****GSTABL7 by Garry H.Gregory,P.E.**
**Original Version 1.0,January 1996;Current Version 2.005,Sept.2006 **
(All Rights Reserved-Unauthorized Use Prohibited)
*********************************************************************************
SLOPE STABILITY ANALYSIS SYSTEM
Modified Bishop,Simplified Janbu,or GLE Method of Slices.
(Includes Spencer &Morgenstern-price Type Analysis)
Including Pier/Pile,Reinforcement,Soil Nail,Tieback,
Nonlinear Undrained Shear Strength,Curved Phi Envelope,
Anisotropic Soil,Fiber-Reinforced Soil,Boundary Loads,Water
Surfaces,Pseudo-Static &Newmark Earthquake,and Applied Forces.
*********************************************************************************
Analysis Run Date:9/28/2010
Time of Run:10:50AM
Run By:John Smith,XYZ Company
Input Data Filename:U:\2010\10-036-00\Analyses\Slope Stability\3sr 6.4.in
Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\3sr=6.4.0UT
Unit System:English
Plotted Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\3sr_6.4.PLT
PROBLEM DESCRIPTION:Sect 3,Lower switch back,Amount of
bluff face erosion for failure
BOUNDARY COORDINATES
39 Top Boundaries
57 Total Boundaries
Boundary X-Left
No.(ft)
1 0.00
2 42.00
3 108.00
4 153.00
5 199.00
6 236.00
7 332.00
8 339.00
9 341.00
10 343.00
11 355.00
12 362.00
13 378.00
14 383.00
15 407.00
16 414.00
17 427.00
18 442.00
19 453.00
20 464.00
21 470.00
22 482.00
23 494.00
24 515.00
25 532.00
26 538.00
27 554.00
28 578.00
29 608.00
30 620.00
31 634.00
32 648.00
33 663.00
34 684.00
35 710.00
36 739.00
37 767.00
38 787.00
39 846.00
40 343.00
41 348.00
Y-Left
(ft)
403.00
389.00
356.00
345.00
338.00
335.00
316.00
313.00
311.00
306.00
295.00
292.00
291.00
291.00
289.00
289.00
283.00
280.00
269.00
260.00
251.00
240.00
232.00
231.00
232.00
238.00
271.00
274.00
289.00
289.00
288.00
286.00
286.00
287.00
292.00
295.00
296.00
296.00
291.00
306.00
293.00
X-Right
(ft)
42.00
108.00
153.00
199.00
236.00
332.00
339.00
341.00
343.00
355.00
362.00
378.00
383.00
407.00
414 .00
427.00
442.00
453.00
464.00
470.00
482.00
494.00
515.00
532.00
538.00
554.00
578.00
608.00
620.00
634.00
648.00
663.00
684.00
710.00
739.00
767.00
787.00
846.00
864.00
348.00
353.00
Y-Right
(ft)
389.00
356.00
345.00
338.00
335.00
316.00
313.00
311.00
306.00
295.00
292.00
291.00
291.00
289.00
289.00
283.00
280.00
269.00
260.00
251.00
240.00
232.00
231.00
232.00
238.00
271.00
274.00
289.00
289.00
288.00
286.00
286.00
287.00
292.00
295.00
296.00
296.00
291.00
291.00
293.00
288.00
Soil Type
Below Bnd
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
4
4
4
4
4
3
3
3
3
3
3
3
1
1
U:\2010\10-036-00\Analyses\Slope Stability\3sr_6.4.0UT Page 2
28.15 %
228.111
Piez.
Surface
No.
o
o
o
o
1
1
3
3
3
3
1
1
1
1
1
1
1
1
1
1
and Radius
279.00
260.00
250.00
236.00
231.00
232.00
223.00
216.00
213.00
210.00
210.00
207.00
207.00
201.00
201.00
200.00
452.177
slices17
368.00
408.00
428.00
458.00
478.00
494.00
416.00
422.00
429.00
458.00
498.00
558.00
604.00
792.00
828.00
864.00
42 353.00 288.00
43 368.00 279.00
44 408.00 260.00
45 428.00 250.00
46 458.00 236.00
47 478.00 231.00
48 408.00 260.00
49 416.00 223.00
50 422.00 216.00
51 429.00 213.00
52 458.00 210.00
53 498.00 210.00
54 558.00 207.00
55 604.00 207.00
56 792.00 201.00
57 828.00 201.00
Default Y-Origin =O.OO(ft)
Default X-Plus Value =O.OO(ft)
Default Y-Plus Value =O.OO(ft)
ISOTROPIC SOIL PARAMETERS
4 Type(s)of Soil
Soil Total Saturated Cohesion Friction Pore Pressure
Type Unit Wt.Unit wt.Intercept Angle Pressure Constant
No.(pcf)(pcf)(psf)(deg)Paramo (psf)
1 125.0 130.0 2000.0 50.0 0.00 0.0
2 104.5 110.0 0.0 21.0 0.00 0.0
3 104.5 110.0 570.0 23.0 0.00 0.0
4 104.5 110.0 0.0 17.0 0.00 0.0
A Critical Failure Surface Searching Method,Using A Random
Technique For Generating Circular Surfaces,Has Been Specified.
500 Trial Surfaces Have Been Generated.
25 Surface(s)Initiate(s)From Each Of 20 points Equally Spaced
Along The Ground Surface Between X 532.00(ft)
and X =546.00{ft)
Each Surface Terminates Between X =615.00(ftl
and X =648.00(ft)
Unless Further Limitations Were Imposed,The Minimum Elevation
At Which A Surface Extends Is Y =O.OO(ft)
10.00(ft)Line Segments Define Each Trial Failure Surface.
Following Are Displayed The Ten Most Critical Of The Trial
Failure Surfaces Evaluated.They Are
Ordered -Most Critical First.
* *Safety Factors Are Calculated By The Modified Bishop Method **
Total Number of Trial Surfaces Attempted =500
Number of Trial Surfaces With Valid FS =500
Statistical Data On All Valid FS Values:
FS Max =3.026 FS Min =1.013 FS Ave 1.633
Standard Deviation =0.460 Coefficient of Variation
Failure Surface Specified By 13 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 532.000 232.000
2 541.593 234.825
3 551.052 238.068
4 560.360 241.723
5 569.500 245.782
6 578.452 250.238
7 587.201 255.081
8 595.729 260.304
9 604.019 265.895
10 612.057 271.844
11 619.826 278.140
12 627.312 284.771
13 630.882 288.223
Circle center At X =472.362;Y
Factor of Safety
***1.013 ***
Individual data on the
U:\2010\10-036-00\Analyses\Slope Stability\3sr_6.4.0UT Page 3
\'later \'later Tie Tie Earthquake
Force Force Force Force Force Surcharge
Slice Width Weight Top Bot Norm Tan Hor Ver Load
No.(ft)(lbs)(lbs)(lbs)(lbs)(lbs)(lbs) (lbs)(lbs)
1 6.0 1327.0 0.0 0.0 o.O.0.0 0.0 0.0
2 3.6 2781.3 0.0 0.0 O.O.0.0 0.0 0.0
3 9.5 18502.9 0.0 0.0 O.O.0.0 0.0 0.0
4 2.9 9030.1 0.0 0.0 O.O.0.0 0.0 0.0
5 6.4 20553.2 0.0 0.0 O.o.0.0 0.0 0.0
6 9.1 27327.3 0.0 0.0 O.O.0.0 0.0 0.0
7 8.5 22715.1 0.0 0.0 O.O.0.0 0.0 0.0
8 0.5 1133.1 0.0 0.0 O.O.0.0 0.0 0.0
9 8.7 21716.2 0.0 0.0 O.O.0.0 0.0 0.0
10 8.5 20532.1 0.0 0.0 O.O.0.0 0.0 0.0
11 8.3 18919.8 0.0 0.0 O.O.0.0 0.0 0.0
12 4.0 8584.3 0.0 0.0 O.O.0.0 0.0 0.0
13 4.1 7910.0 0.0 0.0 O.O.0.0 0.0 0.0
14 7.8 11372.B 0.0 0.0 O.O.0.0 0.0 0.0
15 0.2 195.5 0.0 0.0 O.O.0.0 0.0 0.0
16 7.3 5506.9 0.0 0.0 O.O.0.0 0.0 0.0
17 3.6 691.4 0.0 0.0 O.O.0.0 0.0 0.0
Failure Surface Specified By 12 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 532.000 232.000
2 541.459 235.243
3 550.739 238.970
4 559.815 243.169
5 568.661 247.831
6 577.256 252.943
7 585.576 258.491
8 593.599 264.460
9 601.304 270.835
10 608.670 277.598
11 615.678 284.732
12 619.458 289.000
Circle Center At X =474.187 ;Y =416.301 ;and Radius =193.156
Factor of Safety
***1.014 ***
Failure Surface Specified By 13 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 532.000 232.000
2 541.510 235.090
3 550.900 238.530
4 560.156 242.316
5 569.266 246.441
6 578.216 250.900
7 586.996 255.687
8 595.592 260.796
9 603.994 266.220
10 612.189 271.951
11 620.166 277.981
12 627.915 284.302
13 632.262 288.124
Circle Center At X =453.263 ;Y =490.494 ;and Radius 270.220
Factor of Safety
***1.016 ***
Failure Surface Specified By 13 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(tt)
1 533.474 233.474
2 543.055 236.335
3 552.497 239.631
4 561.778 243.354
5 570.879 247.497
6 579.782 252.051
7 588.468 257.007
U:\2010\10-036-00\Analyses\Slope Stability\3sr_6.4.0UT Page 4
362.022
146.070
273.563
219.060
574.307 i and Radius
444.750 ;and Radius
377.322 ;and Radius
596.918 262.353
605.116 268.080
613.044 274.175
620.685 280.626
628.025 287.418
628.953 288.360
center At X ~475.597;Y
~actor of Safety
***1.021 ***
Failure Surface Specified By 12 Coordinate Points
Point X-Surf Y-Surt
No.(ft)(ft)
1 533.474 233.474
2 542.868 236.901
3 552.131 240.668
4 561.250 244.772
5 570.214 249.206
6 579.009 253.964
7 587.625 259.040
8 596.050 264.427
9 604.273 270.118
10 612.282 276.106
11 620.067 282.382
12 627.105 288.493
Circle Center At X =444.454;Y =492.147;and Radius
Factor of Safety
***1.022 ***
Failure Surface Specified By 12 Coordinate Points
Point X-Surf Y-Surf
No.(tt)(ft)
1 533.474 233.474
2 543.256 235.550
3 552.873 238.289
4 562.281 241.679
5 571.435 245.704
6 580.294 250.344
7 588.814 255.579
8 596.957 261.383
9 604.685 267.730
10 611.961 274.590
11 618.752 281.931
12 624.205 288.700
Circle Center At X =508.090;Y
Factor of Safety
***1.027 ***
Failure Surface Specified By 13 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 532.737 232.737
2 542.125 236.180
3 551.415 239.882
4 560.599 243.839
5 569.670 248.047
6 578.621 252.505
7 .587.446 257.209
8 596.138 262.154
9 604.690 267.337
10 613.095 272.755
11 621.347 278.403
12 629.441 284.276
13 634.240 287.966
Circle Center At X =412.779 i Y
Factor of Safety
***1.028 ***
Failure Surface Specified By 12 Coordinate Points
Point X-Surf Y-Surf
No.(it)(it)
1 534.947 234.947
8
9
10
11
12
13
Circle
U:\2010\10-036-00\Analyses\slope stability\3sr_6.4.0UT Page 5
198.794
194.281
364.028andRadius576.958
2
3
4
5
6
7
8
9
10
11
12
Circle
544.492 237.931
553.875 241.390
563.073 245.313
572.063 249.693
580.822 254.517
589.329 259.773
597.562 265.449
605.501 271.531
613.125 278.002
620.415 284.846
624.133 288.705
Center At X =480.499 i Y =426.140;and Radius
Factor of Safety
***1.030 ***
Failure Surface Specified By 12 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 534.947 234.947
2 544.492 237.931
3 553.871 241.400
4 563.060 245.345
5 572.035 249.755
6 580.772 254.619
7 589.249 259.925
8 597.442 265.658
9 605.331 271.803
10 612.895 278.344
11 620.114 285.264
12 623.403 288.757
Circle Center At X =481.854;Y =421.833;and Radius
Factor of Safety
***1.030 ***
Failure Surface Specified By 13 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 532.737 232.737
2 542.141 236.120
3 551.461 239.160
4 560.671 243.655
5 569.171 247.802
6 578.754 252.197
7 587.612 256.836
8 596.340 261.718
9 604.930 266.837
10 613.376 272.191
11 621.673 277.774
12 629.812 283.583
13 635.392 287.801
Circle Center At X =414.295 i Y
Factor of Safety
***1.031 ***
****END OF GSTAB17 OUTPUT ****
500
400
300
200
100
Sect 1,Upper switch back,Amount of bluff face erosion for failure
u:\201 0\1 0.036-00\analyses\slope stabllity\1sC2.4.pI2 Run By:John Smith,XYZ Company 9/28/2010 11:03AM
--.-,===F='--=T=---=F--=+==r--.---r--.....------r-
#FS Pc~'SoH Tota'Sat""""Coh,,'o"Frlctioo'Pore er"..re'P~,.',
a 1.0 Desc.Type Unit WI.Unit Wl~Intercept Angle :Pressure Constant Surface::
b 1.0 No.(pet) (pef):(psf)(deg}:Paramo (psf):No.::
c 1.0 Qls i 104.5 110.0,570.0 23.0 I 0.00 0.0 ,0 I Id1.0 ---.------.---.-----.-----,..----..,I ,
e 1.0::::::
f 1.0:I ::::s_tQ.~..l !! .!1 _
h 1.0::::':
i 1.0,'"I
j 1.0::::;
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o 100 200 300 400 500 600 700 800
GSTABL7 v.2 FSmin=1.0
Safety Factors Are Calculated By The Modified Bishop Method
800
~__.------J
700
I
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Sect 1,Upper switch back,Amount of bluff face erosion for failure
u:\2010\10-036-00\analyses\slope stability\1sC2.4.pll Run By:John Smith,XYZ Company 9/28/2010 10:56AM..,--.------r----------~------r--------r---'~-------__,_.----~--"
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o 100 200 300 400 500 600
500
300
100
200
400
U:\2010\10-036-00\Analyses\Slope Stabi1ity\lsr_2.4.0UT Page 1
***GSTABL7 ***
**GSTABL7 by Garry H.Gregory,P.E.*k
**Original version 1.0,January 1996;Current Version 2,005,Sept.2006 **
(All Rights Reserved-unauthorized Use Prohibited)
*********************************************************************************
SLOPE STABILITY ANALYSIS SYSTEM
Modified Bishop,Simplified Janbu,or GLE Method of Slices.
(Includes Spencer &Morgenstern-Price Type Analysis)
Including Pier/Pile,Reinforcement,Soil Nail,Tieback,
Nonlinear Undrained Shear Strength,Curved Phi Envelope,
Anisotropic Soil,Fiber-Reinforced Soil,Boundary Loads,water
Surfaces,Pseudo-Static &Ne\~ark Earthquake,and Applied Forces,
*********************************************************************************
Analysis Run Date:9/28/2010
Time of Run:10:56AM
Run By:John Smith,XYZ Company
Input Data Filename:U:\2010\10-036-00\Analyses\Slope Stability\lsr 2.4.in
Output Filename:U:\2010\10-036-00\Analyses\Slope stability\lsr=2.4.0UT
Unit System:English
Plotted Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\lsr_2.4.PLT
PROBLEM DESCRIPTION:Sect 1,Upper switch back,Amount
of bluff face erosion for failure
X-Right
(ft)
23.00
212.00
284.00
323.00
350.00
360.00
373.00
379.00
381.00
384.00
387.00
423.00
427.00
433.00
449.00
459.00
480.00
525.00
536.00
545.00
560.00
577.00
585.00
638.00
655.00
719.00
372.00
376.00
384.00
404.00
433.00
560.00
620.00
695.00
720.00
Pressure
BOUNDARY COORDINATES
26 Top Boundaries
35 Total Boundaries
Boundary X-Left Y-Left
No.(ftl (ft)
1 0.00 330.00
2 23.00 311.00
3 212.00 282.00
4 284.00 248.00
5 323.00 233.00
6 350.00 215.00
7 360.00 206.00
8 373.00 193.00
9 379.00 185.00
10 381.00 177.00
11 384.00 174.00
12 387.00 174.00
13 423.00 173.00
14 427.00 174.00
15 433.00 179.00
16 449.00 211.00
17 459.00 230.00
18 480.00 241.00
19 525.00 265.00
20 536.00 265.00
21 545.00 265.00
22 560.00 263.00
23 577.00 261.00
24 585.00 265.00
25 638.00 273.00
26 655.00 274.00
27 360.00 206.00
28 372.00 164.00
29 376.00 157.00
30 384.00 150.00
31 404.00 145.00
32 433.00 142.00
33 560.00 144.00
34 620.00 143.00
35 695.00 142.00
Default Y-Origin =O.OO{ft)
Default X-Plus Value ~O.OO(ft)
Default Y-Plus Value =O.OO(ft)
ISOTROPIC SOIL PARAMETERS
1 Type(s)of Soil
Soil Total Saturated Cohesion Friction
Y-Right
(ft)
311.00
282.00
248.00
233.00
215.00
206.00
193.00
185.00
177.00
174.00
174.00
173.00
174.00
179.00
211.00
230.00
241.00
265.00
265.00
265.00
263.00
261.00
265.00
273.00
274.00
280.00
164.00
157.00
150.00
145.00
142.00
144.00
143.00
142.00
140.00
Pore
Soil Type
Below Bnd
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Piez.
U:\2010\10-036-00\Analyses\Slope Stability\lsr_2.4.0UT Page 2
Modified Bishop Method * *
500
500
27.64 %
222.019
Surface
No.
o
and Radius
Earthquake
Force Surcharge
Hor Ver Load
(lbs)(1bs) (1bs)
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
Constant
(psf)
0.0
Random
Specified.
378.804
15 slices
Tie Tie
Force Force
Norm Tan
(lbs)(lbs)
O. O.
O. O.
O. O.
O.O.
O.O.
O. O.
O.O.
O.O.
O.O.
O.O.
O. O.
O.O.
O. O.
O. O.
O.O.
Coordinate Points
Width
(ft)
6.0
7.6
8.4
4.8
5.2
7.5
12.1
1.4
10.0
10.8
10.1
9.3
4.8
3.6
3.1
Failure
Point
No.
1
2
3
4
5
Type Unit Wt.Unit Nt.Intercept Angle Pressure
No.(pcf)(pcf)(psf)(deg)Paramo
1 104.5 110.0 570.0 23.0 0.00
A Critical Failure Surface Searching Method,Using A
Technique For Generating Circular Surfaces,Has Been
500 Trial Surfaces Have Been Generated.
25 Surface(s)Initiate(s)From Each Of 20 Points Equally Spaced
Along The Ground Surface Between X =427.00(ft)
and X =445.00(ft)
Each Surface Terminates Betw~en X =524.00(ft)
and X =600.00(ft)
Unless Further Limitations Were Imposed,The Minimum Elevation
At Which A Surface Extends Is Y =O.OO(ft)
l5.00(ft)Line Segments Define Each Trial ~ailure Surface.
Following Are Displayed The Ten Most Critical Of The Trial
Failure Surfaces Evaluated.They Are
Ordered -Most Critical First.
* *Safety Factors Are Calculated By The
Total Number of Trial Surfaces Attempted
Number of Trial Surfaces With Valid FS =
Statistical Data On All Valid FS Values:
FS Max =3.265 FS Min =1.023 FS Ave 1.684
Standard Deviation =0.465 Coefficient of Variation
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 427.000 174.000
2 440.633 180.255
3 453.813 187.417
4 466.480 195.452
5 478.575 204.324
6 490.043 213.993
7 500.832 224.414
8 510.893 235.539
9 520.179 247.319
10 528.649 259.699
11 531.773 265.000
Circle Center At X =341.283;Y
Factor of Safety
***1.023 ***
Individual data on the
Water Water
Force Force
Weight Top Bot
(lbs)(1bs)(1bs)
704.5 0.0 0.0
6484.7 0.0 0.0
17577.9 0.0 0.0
14820.2 0.0 0.0
19517.7 0.0 0.0
30389.2 0.0 0.0
47014.1 0.0 0.0
5318.2 0.0 0.0
35596.1 0.0 0.0
33857.5 0.0 0.0
26091.0 0.0 0.0
17976.0 0.0 0.0
6484.7 0.0 0.0
3038.6 0.0 0.0
865.2 0.0 0.0
Surface Specified By 11
X-Surf Y-Surf
(ft)(ft)
427.947 174.789
441.583 181.041
454.784 188.162
467.497 196.123
479.668 204.891
Slice
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
U:\2010\10-036-00\Analyses\Slope Stability\1sr_2.4.0UT page 3
181.636
195.475
231,559
145.195
356.696 j and Radius
491.246 214.428
502.182 224.694
512.430 235.648
521.948 247.241
530.695 259.427
534.172 265.000
Center At X =338.308;Y =388.295 J and Radius
Factor of Safety
***1.025 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 428.895 175.579
2 443.290 179.794
3 457.174 185.473
4 470.398 192.553
5 482.821 200.960
6 494.310 210.603
7 504.743 221.381
8 514.008 233.177
9 522.007 245.866
10 528.654 259.313
11 530.767 265.000
Circle Center At X =395.343 j Y =316.844 j and Radius
Factor of Safety
***1.026 ***
Failure Surface Specified By 10 Coordinate Points
Point X-Surf Y-Surf
No.(ftl (ft)
1 429.842 176.368
2 443.447 182.687
3 456.527 190.028
4 469.007 198.350
5 480.813 207.603
6 491.876 217.733
7 502.130 228.680
8 511.516 240.380
9 519.979 252.765
10 527.029 265.000
Circle Center At X =354.396;Y
Factor of Safety
***1.029 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ftl
1 429.842 176.368
2 444.021 181.263
3 457.748 187.310
4 470.929 194.470
5 483.474 202.693
6 495.298 211.923
7 506.321 222.097
8 516.466 233.146
9 525.665 244.994
10 533.854 257.561
11 537.870 265.000
Circle Center At X =377.716;Y =350.364;and Radius
Factor of Safety
***1.030 ***
Failure Surface Specified By 10 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ftl
1 432.684 178.737
2 446.162 185.320
3 459.188 192.759
4 471.706 201.023
5 483.665 210.078
6 495.014 219.885
6
7
8
9
10
11
Circle
U:\2010\10-036-00\Analyses\Slope Stability\lsr_2.4.0UT Page 4
7 505.708 230.404
8 515.700 241.591
9 524.950 253.400
10 532.884 265.000
Circle Center At X =337,667;Y =390.430;and Radius =232.039
Factor of Safety
***1.036 ***
Failure Surface Specified By 12 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 427.947 174.789
2 442.130 179.673
3 455.936 185.538
4 469.297 192.356
5 482.148 200.092
6 494.425 208.711
7 506.068 218.168
8 517.020 228.417
9 527.227 239.409
10 536.640 251.08B
11 545.211 263.398
12 546.0Bl 264.856
Circle Center At X =365.607;Y =379.063;and Radius 213.574
Factor of Safety
***1.040 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 431.737 177.947
2 445.721 183.373
3 459.292 189.764
4 472.382 197.087
5 484.929 205.309
6 496.869 214.387
7 508.146 224.278
8 518.703 234.934
9 528.490 246.302
10 537.457 258.326
11 541.742 265.000
Circle Center At X =361.235;Y 380.391 ;and Radius 214.369
Factor of Safety
***1.042 ***
Failure Surface Specified By 10 Coordinate Points
Point X-Surf Y-Surf
No.(ft)eft)
1 432.684 178.737
2 445.936 185.764
3 458.771 193.528
4 471.146 202.004
5 483.023 211.165
6 494.364 220.983
7 505.133 231.425
8 515.295 242.458
9 524.817 254.048
10 532.825 265.000
Circle center At X =315.244;Y 416.326 ;and Radius 265.030
Factor of Safety
***1.043 ***
Failure Surface Specified By 12 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 428.895 175.579
2 443.097 180.405
3 456.925 186.218
4 470.309 192.990
5 483.184 200.687
6 495.485 209.271
7 507.152 218.699
212.773andRadius
U:\2010\10-036-00\Analyses\Slope Stability\1sr_2.4.0UT Page 5
518.126 228.925
528.353 239.898
537.764 251.563
546.370 263.862
546.899 264.747
Center At X =367.619;Y =379.338
Factor of Safety
***1.046 ***
****END OF GSTABL7 OUTPUT ****
8
9
10
11
12
Circle
500 I,---~;.------
800700
:~11'
I,
------i•...-~,,~-__~L.
1,1 1
,I
I ,
I ,
,,,
I
I-..,...~--- - -..~T _0 ••-- - - - - - - - -,
I
I
I
I
I
I,,,
200 300 400 500 600
GSTABL7 v.2 FSmin=1.4
Safety Factors Are Calculated By The Modified Bishop Method
Sect 1,Static,Upper swich back,EXisting Cond,circ.search @ bluff face
u:\2010\1 0-036-QOlanalyses\slope stabillty\1_s_r_2.pI2 Run By:John Smilh,XYZ Company 9/28/2010 10:12AM
---.-1-----=]'om --F--"---,I .-----------I '--T==
I
100
#FS Soil Soil Total Saturated Cohesion Friction'Pore Pressure I Piez.
a 1.4 Desc.Type Unit WI.Unit wt.Intercept Angle :Pressure Constant Surface
b 1.4 No.(pet)(pet):(psf)(deg):Paramo (psI):No.
e 1.4 Qrs 1 104.5 110.0 I 570.0 23.0 I 0.00 0.0 ,0
~-j~:i.--..-i -..--------~---------.
i 1.4 I I
j 1.4::
•..----I
I
I,,,,
..2 :..:_..
I ,,
o
o
200
300
100
400
500
Sect 1,Static,Upper swich back,Existing Cond,eire.search @ bluff face
u:\:1010\10-036-00\analYS6s\slope stability\1_s_r_2.plt Run By:John Smith,XYZ Company 9/2812010 10:19AM
---I I -,I I ---
800700600
--_.I ----'-1__
400 500300
1
,,
I
I
I,
I
I
I,
I
I----··-------f--··---------
I
I
I
I
I
I
I
I
I
200100
I,
I
I
I
I
I
I
I
I,__________..L _
I
I
I
I
J
I
I
I,
I
I
---...._!r ---I ---
,
I
IJ I
I I
I '-~--"
,---''''-----i------j--;----:
,::'-"--
__ _.._::f,j :21 22 23 ---
_____.._''1 1 1
-----:--:,--',',',.',,-_..-':,:----{------
I 1.I I - -,,-ol7:"-- --
____..___,:,...,~28 _':,---,1 ~--29 '
:;....__:--,-_.30',,_,,1~•.---.1L '2""1 ·_-oC
,,'__,____':,~
"'-_..-'',:''-;-----_:',"-,-'",,-- -',: :'::--_..,-----
,'''"----
,''''
1
::':,'I I
I I I,II
1
o
o
1
300
200
100
400
U:\2010\10-036-00\Analyses\Slope Stability\1_s_r_2.0UT Page 1
***GSTABL7 ***
**GSTABL7 by Garry H.Gregory,P.E.**
**Original Version 1.0,January 1996;Current Version 2.005,Sept.2006 **
(All Rights Reserved-Unauthorized Use Prohibited)
*********************************************************************************
SLOPE STABILITY ANALYSIS SYSTEM
Modified Bishop,Simplified Janbu,or GLE Method of Slices.
(Includes Spencer &Morgenstern-price Type Analysis)
Including Pier/Pile,Reinforcement,Soil Nail,Tieback,
Nonlinear Undrained Shear Strength,Curved Phi Envelope,
Anisotropic Soil,Fiber-Reinforced Soil,Boundary Loads,Water
Surfaces,Pseudo-Static &Newmark Earthquake,and Applied Forces.
*********************************************************************************
Analysis Run Date:9/28/2010
Time of Run:10:12~1
Run By:John Smith,XYZ Company
Input Data Filename:U:\2010\10-036-00\Analyses\Slope Stabi1ity\1 s r 2.in
Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\1=s=r=2.0UT
Unit System:English
Plotted Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\1_s_r_2.PLT
PROBLEM DESCRIPTION:Sect I,Static,Upper swich back,
Existing Cond,circ.search @ bluff face
Cohesion
Intercept
(psf)
570.0
Pressure
Constant
(psf)
0.0
BOUNDARY COORDINATES
23 Top Boundaries
32 Total Boundaries
Boundary X-Left Y-Left
No.(ft)(ft)
1 0.00 330.00
2 23.00 311.00
3 212.00 282.00
4 284.00 248.00
5 323.00 233.00
6 350.00 215.00
7 360.00 206.00
8 373.00 193.00
9 379.00 185.00
10 381.00 177.00
11 384.00 174.00
12 387.00 174.00
13 410.00 196.00
14 444.00 223.00
15 480.00 241.00
16 525.00 265.00
17 536.00 265.00
18 545.00 265.00
19 560.00 263.00
20 577.00 261.00
21 585.00 265.00
22 638.00 273.00
23 655.00 274.00
24 360.00 206.00
25 372.00 164.00
26 376.00 157.00
27 384.00 150.00
28 404.00 145.00
29 433.00 142.00
30 560.00 144.00
31 620.00 143.00
32 695.00 142.00
Default Y-Origin =O.OO(ft)
Default X-Plus Value =O.OO(ft)
Default Y-Plus Value =O.OO(ft)
ISOTROPIC SOIL PARAMETERS
1 Type(s)of Soil
Soil Total Saturated
Type Unit Wt.Unit Wt.
No.(pcf)(pcf)
1 104.5 110.0
X-Right
(ft)
23.00
212.00
284.00
323.00
350.00
360.00
373.00
379.00
381.00
384.00
387.00
410.00
444.00
480.00
525.00
536.00
545.00
560.00
577.00
585.00
638.00
655.00
719.00
372.00
376.00
384.00
404.00
433.00
560.00
620.00
695.00
720.00
Friction
Angle
(deg)
23.0
Y-Right
(ft)
311.00
282.00
248.00
233.00
215.00
206.00
193.00
185.00
177.00
174.00
174.00
196.00
223.00
241.00
265.00
265.00
265.00
263.00
261.00
265.00
273.00
274.00
280.00
164.00
157.00
150.00
145.00
142.00
144.00
143.00
142.00
140.00
Pore
Pressure
Paramo
0.00
Soil Type
Below Bnd
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Piez.
Surface
No.
o
U:\2010\10-036-00\Analyses\Slope Stability\1_s_r_2.0UT Page 2
**
71.13 %
144.653andRadius
Earthquake
Force Surcharge
Hor Ver Load
(lbs) (lbs) (lbs)
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
319.796
15 slices
Tie Tie
Force Force
Norm Tan
(lbs)(lbs)
O.O.
O. O.
O. O.
O.O.
O.O.
O. O.
O.O.
O. O.
O.O.
O.O.
O. O.
O. O.
O.O.
O.O.
O. O.
Coordinate Points
Width
(ft)
15.0
6.8
8.1
14.6
11.4
2.7
13.5
12.7
7.1
4.8
10.8
9.7
8.5
7.1
2.7
Failure
Point
No.
1
2
3
4
5
6
A Critical Failure Surface Searching Method,Using A Random
Technique For Generating Circular Surfaces,Has Been Specified.
500 Trial Surfaces Have Been Generated.
25 Surface(s)Initiate(s)From Each Of 20 Points Equally Spaced
Along The Ground Surface Between X 387.00(ft)
and X =410.00(ft)
Each Surface Terminates Between X =445.00(ft)
and X =525.00(ft)
Unless Further Limitations Were Imposed,The Minimum Elevation
At Which A Surface Extends Is Y =O.OO(ft)
15.00(ft)Line Segments Define Each Trial Failure Surface.
Following Are Displayed The Ten Most Critical Of The Trial
Failure Surfaces Evaluated.They Are
Ordered -Most Critical First.
* *Safety Factors Are Calculated By The Modified Bishop Method
Total Number of Trial Surfaces Attempted 500
Number of Trial Surfaces With Valid FS =500
Statistical Data On All Valid FS Values:
FS Max =17.699 FS Min =1.377 FS Ave 2.042
Standard Deviation =1.452 Coefficient of Variation
Failure Surface Specified By 13 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 388.211 175.158
2 403.200 175.723
3 418.050 177.837
4 432.602 181.478
5 446.698 186.606
6 460.187 193.167
7 472.924 201.089
8 484.773 210.287
9 495.605 220.663
10 505,305 232.105
11 513.767 244.490
12 520.902 257.685
13 523.622 264.265
Circle Center At X =390.262;Y
Factor of Safety
***1.377 ***
Individual data on the
Water Water
Force Force
Weight Top Bot
(lbs)(lbs)(lbs)
10786.5 0.0 0.0
11753.9 0.0 0.0
18450.0 0.0 0.0
43357.0 0.0 0.0
41597.6 0.0 0.0
10588.1 0.0 0,0
53332.9 0.0 0.0
49449.0 0.0 0.0
26171,6 0.0 0.0
16877.9 0.0 0.0
35044.9 0.0 0.0
25872.5 0.0 0.0
16320.4 0.0 0.0
7324.6 0.0 0.0
728.9 0.0 0.0
Surface Specified By 12
X-Surf Y-Surf
(ft)(ft)
387.000 174.000
401.930 175.451
416.618 178.495
430.894 183.096
444.595 189.202
457.563 196.742
Slice
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
U:\2010\10-036-00\Analyses\Slope Stability\1_s_r_2.0UT Page 3
7 469.647 205.629
8 480.708 215.760
9 490.619 227.020
10 499.266 239.277
11 506.548 252.390
12 508.057 255.964
Circle Center At X =381.132 ; Y 313.047 i and Radius 139.171
Factor of Safety
***1.389 ***
Failure Surface Specified By 13 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 389.421 176.316
2 404,402 177.072
3 419.226 179.362
4 433.738 183.159
5 447.783 188.425
6 461.214 195.104
7 473.889 203.125
8 485.675 212.404
9 496.447 222.843
10 506.091 234.331
11 514.506 246.748
12 521.603 259.963
13 523.302 264.094
Circle Center At X =389.554 ;Y =322.368 i and Radius =146.052
Factor of Safety
***1.390 k*k
Failure Surface Specified By 12 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 387.000 174.000
2 401.990 173.455
3 416.927 174.829
4 431.566 178.100
5 445.668 183.213
6 459.001 190.084
7 471.348 198.603
8 482.506 208.628
9 492.292 219.996
10 500.546 232.521
11 507.133 245.997
12 511 .050 257.560
Circle Center At X =398.811 i Y 290.326 i and Radius 116,924
Factor of Safety
***1.400 ***
Failure Surface Specified By 13 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 390.632 177.474
2 405.592 178.566
3 420.372 181,123
4 434.830 185.120
5 448.825 190.518
6 462.222 197.266
7 474.891 205.297
8 486.709 214.534
9 497.563 224.888
10 507.346 236.258
11 515.966 248.534
12 523.337 261.598
13 524.787 264.886
Circle Center At X =387.022 ; Y =329.900 ;and Radius 152.469
Factor of Safety
***1.401 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
U:\2010\10-036-00\Analyses\Slope StabilitY\1_s_r_2.0UT Page 4
95.206
100.687
124.741
124.949
268,307 ;and Radius
300.310 ;and Radius
274.670 ;and Radius
299.896 ;and Radius
1
2
3
4
5
6
7
8
9
10
11
Circle
388.211 175.158
403.177 176.156
417.916 178.942
432.214 183.478
445.864 189.698
458.669 197.510
470.443 206.803
481.017 217.443
490.237 229.274
497.971 242.127
502.951 253.241
Center At X =387.413;y
Factor of Safety
***1.410 ***
Failure Surface Specified By 13 Coordinate Points
Point X-Surf Y-Surf
No.(ft) (ft)
1 389.421 176.316
2 404.391 175.362
3 419.367 176.209
4 434.133 178.845
5 448.478 183.231
6 462.193 189.304
7 475.082 196.977
8 486.959 206.140
9 497.652 216.659
10 507.007 228.385
11 514.890 241.146
12 521.186 254.761
13 524.397 264.678
Circle Center At X =404.836;Y
Factor of Safety
***1.412 ***
Failure Surface Specified By 10 Coordinate Points
Point X-Surf Y-Surf
No.(ft) (ft)
1 387.000 174.000
2 401.975 174.869
3 416.657 177.938
4 430.726 183.141
5 443.873 190.363
6 455.810 199.447
7 466.276 210.192
8 475.041 222.365
9 481.914 235.697
10 484.541 243.422
Circle Center At X =388.826;y
Factor of Safety
***1.430 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(Et)
1 387.000 174.000
2 401.974 173.121
3 416.901 174.604
4 431.409 178.414
5 445.139 184.455
6 457.749 192.578
7 468.927 202.580
8 478.396 214.214
9 485.919 227.191
10 491.312 241.188
11 492.717 247.782
Circle Center At X =400.050;Y
Factor of Safety
***1.440 ***
Failure Surface Specified By 10 Coordinate Points
Point X-Surf Y-Surf
U;\2010\10-036-00\Analyses\Slope Stability\1_s_r_2.0UT Page 5
No.
1
2
3
4
5
6
7
8
9
10
Circle
(it)(ft)
388.211 175.158
403.193 175.885
417.905 178.808
432.028 183.862
445.254 190.939
457.295 199.883
467.890 210.502
476.809 222.562
483.856 235.804
487.037 244.753
Center At X =390.955;Y 276.227
Factor of Safety
***1.441 ***
****END OF GSTABL7 OUTPUT ****
and Radius 101.106
800700600300
I .J I
400 500
GSTABL7 v.2 FSmin=1.3
Safety Factors Are Calculated By The Modified Bishop Method
200100
Sect 1,Static,Upper swich back,Existing Cond,circular search at road
U:\2010\10-036-00\anafyses\slope stabllity\1_s_U.pI2 Run By:John Smith,XYZ Company 9/26/2010 10:08AM
------I -------I --I -,r------.
Soil Soil Total Saturated Cohesion Friction I Pore Pressure'Piaz.'I
Oese.Type Unit Wt.Unit W(Intercept Angle :Pressure Constant Surface:;
No.(pcf)(pef):(psf)(deg):Paramo (psI):No.::
Qls 1 104.5 110.0,570.0 23.0 I 0.00 0.0 I 0 I I
j I -"-~......._-.--"---I I,
I,,
I-··-----------------------1---------··--,,
#FS
a 1.3
b 1.4
c 1.4
d 1.4,,
e 1.4,,
f 1.4 ~~9_14 L L L _
h 1.4:::
i 1.4 I I ,
j 1.4:::
I I ,
I ,I
I ,I
,,I
,I I
I ,,
I I I
I I I
··--~------------t ------------+~..
: 1 I ::
I "
I ",I I,",,
I ,
I ,
I I
,l'
-----------~..----------------------~------.1--1p-!l_~::
:: 1 ---=--::
I I 1 I I I I
:I :1~~~.J§__•~:~l-.---U-~-L.
I I I ,1 1 l'1 1
1 I I I I I 1
I I I I \I 1
I I I I I I I
F ,I I 1 I I
-----------~·------------t-------------r--····--------~---""-------~------------'--"---------'1-----------
r I I I I I
I 1 I I I I
I I I 1 I I
I I I I I I
I I ,I I I
1 I I I I I
J I I I I I
I I I I I I
I I I I r I
I I I I I t
I I I I I J
I
1
o L._'o-I
o
400
500
300
200
100
500
Sect 1,Static,Upper swich back,EXisting Cond,circular search at road
u:\2010\10·036-QO\analyses\slope stability\1_s_r_1.plt Run By:John Smith,XYZ Company 9128/2010 10:20AM'--T--I .I .I ,.------,---.---.---
800700600500400300
---_I.
200100
IIIII,I ,I ,
',,I I II,,I
I :I I
'I,
'I I I
---of -------r-------f--------l------i------r -----:---
,,,,,,,
'"",',,,,,,',,,,,,
iii i i -----J------------!----------' , , :--0-------,D ':-L____~-----_+-----T---!'1
I I
I ,
I I
I Ih~:_~:---------I 1 ,
'I j_j ..L
----~---.----~--_u __r-----1
I I I
I I I
I I I
I I I
,,---:"---: :i _ _
J I
::u ~-_.-------~----------r-i
I I I
I I ,
I I ,
:::
I I I
I I I
I ,II,
I
1
o
o
300
100
200
400
***GSTABL7 ***
**GSTABL7 by Garry H,Gregory,P.E.**
**Original Version 1.0,January 1996;Current Version 2.005,Sept.2006 **
(All Rights Reserved-Unauthorized Use Prohibited)
************************************************~********************************
SLOPE STABILITY ANALYSIS SYSTEM
Modified Bishop,Simplified Janbu,or GLE Method of Slices.
(Includes Spencer &Morgenstern-price Type Analysis)
Including Pier/Pile,Reinforcement,Soil Nail,Tieback,
Nonlinear Undrained Shear Strength,Curved Phi Envelope,
Anisotropic Soil,Fiber-Reinforced Soil,Boundary Loads,Water
Surfaces,Pseudo-Static &Ne~mark Earthquake,and Applied Forces.
***************************************************************r*****************
Analysis Run Date;9/28/2010
Time of Run:10:08AM
Run By:John Smith,XYZ Company
Input Data ~ilename:U:\2010\10-036-00\Analyses\Slope Stability\1 s r l.in
Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\l=s=r=I.0UT
Unit System:English
Plotted Output Filename:U:\20l0\10-036-00\Analyses\Slope Stability\l_s~r_I.PLT
PROBLEM DESCRIPTION:Sect I,Static,Upper swlch back,
Existing Cond,circular search at road
BOUNDARY COORDINATES
23 Top Boundaries
32 Total Boundaries
Boundary X-Left
No.(ft)
Y-Left
(ft)
X-Right
(ft)
Y-Right
(ft)
Soil Type
Below Bnd
U:\2010\10-036-00\Analyses\Slope Stability\1_s_r_1.0UT Page 2
**
20.07 %
Piez.
Surface
No.
o
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
311.00
282.00
248.00
233.00
215.00
206.00
193.00
185.00
177.00
174.00
174.00
196.00
223.00
241.00
265.00
265.00
265.00
263,00
261.00
265.00
273.00
274.00
280.00
164.00
157.00
150.00
145.00
142,00
144.00
143.00
142.00
140.00
23.00
212.00
284.00
323,00
350.00
360.00
373.00
379.00
381.00
384.00
387.00
410.00
444.00
480.00
525,00
536.00
545.00
560.00
577.00
585.00
638.00
655.00
719.00
372.00
376.00
384.00
404.00
433.00
560.00
620.00
695.00
720.00
1 0.00 330.00
2 23.00 311.00
3 212.00 282.00
4 284.00 248.00
5 323.00 233.00
6 350.00 215.00
7 360.00 206.00
8 373.00 193.00
9 379.00 185.00
10 381.00 177.00
11 384.00 174.00
12 387.00 174.00
13 410.00 196.00
14 444.00 223.00
15 480.00 241.00
16 525.00 265.00
17 536.00 265.00
18 545.00 265.00
19 560.00 263.00
20 577.00 261.00
21 585.00 265.00
22 638.00 273.00
23 655.00 274.00
24 360.00 206.00
25 372.00 164.00
26 376.00 157.00
27 384.00 150.00
28 404.00 145.00
29 433.00 142.00
30 560.00 144.00
31 620.00 143.00
32 695.00 142.00
Default Y-origin =O.OO(ft)
Default X-Plus Value =O.OO(ft)
Default Y-Plus value =O,OO(ft)
ISOTROPIC SOIL PARAMETERS
1 Type(s)of Soil
Soil Total Saturated Cohesion Friction Pore Pressure
Type Unit wt.Unit Wt.Intercept Angle Pressure Constant
No.(pcf)(pcf)(psf)(deg)Paramo (psf)
1 104.5 110.0 570.0 23.0 0.00 0.0
A Critical Failure Surface Searching Method,Using A Random
Technique For Generating Circular Surfaces,Has Been Specified.
500 Trial Surfaces Have Been Generated.
25 Surface(s)Initiate(s)From Each Of 20 Points Equally Spaced
Along The Ground Surface Between X =387.00(ft)
and X =410.00(ftl
Each Surface Terminates Between X =524.00(ft)
and X =600.00(ft)
Unless Further Limitations Were Imposed,The Minimum Elevation
At Which A Surface Extends Is Y =O.OO(ft)
15.00(ft)Line Segments Define Each Trial Failure Surface,
Following Are Displayed The Ten Most Critical Of The Trial
Failure Surfaces Evaluated.They Are
Ordered -Most Critical First.
**Safety Factors Are Calculated By The Modified Bishop Method
Total Number of Trial Surfaces Attempted =500
Number of Trial Surfaces With Valid FS =500
Statistical Data On All Valid FS Values:
FS Max =3.482 FS Min =1.342 FS Ave =1.952
Standard Deviation =0.392 Coefficient of Variation
Failure Surface Specified By 14 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 387.000 174.000
2 401.954 175.170
3 416.775 177.483
4 431.375 180.925
U;\2010\10-036-00\Analyses\Slope Stability\1_s_r_1.0UT Page 3
5 445.668 185.475
6 459.570 191.107
7 473.001 197.787
8 485.879 205.477
9 498.131 214 .132
10 509.684 223.699
11 520.469 234.124
12 530.424 245.344
13 539.490 257.294
14 544.455 265.000
Circle Center At X =379.380 ;Y =368.904 and Radius 195.053
Factor of Safety
***1.342 ***
Individual data on the 18 slices
Water Water Tie Tie Earthquake
Force Force Force Force Force Surcharge
Slice Width Weight Top Bot Norm Tan Hor Ver Load
No.(ft)(lbs)(lbs)(lbs)(lbs)(lbs)(lbs)(lbs)(lbs)
1 15.0 10262.1 0.0 0.0 O.O.0.0 0.0 0.0
2 8.0 13750.0 0.0 0.0 O.O.0.0 0.0 0.0
3 6.8 15388.1 0.0 0.0 O.O.0.0 0.0 0.0
4 14.6 42678.1 0.0 0.0 O.O.0.0 0.0 0.0
5 12.6 46246.5 0.0 0.0 O.O.0.0 0.0 0.0
6 1.7 6659.6 0.0 0.0 O.O.0.0 0.0 0.0
7 13.9 56687.1 0.0 0.0 O. O.0.0 0.0 0.0
8 13.4 55711.0 0.0 0.0 O.O.0.0 0.0 0.0
9 7.0 28798.6 0.0 0.0 O.O.0.0 0.0 0.0
10 5.9 23867.1 0.0 0.0 o.o.0.0 0.0
0.0
11 12.3 48137.2 0.0 0.0 O.O.0.0 0.0 0.0
12 11.6 42054.7 0.0 0.0 O.O.0.0 0.0 0.0
13 10.8 34709.8 0.0 0.0 O.O.0.0 0.0 0.0
14 4.5 12837.7 0.0 0.0 o. o.0.0 0.0 0.0
15 5.4 12874.7 0.0 0.0 O.O.0.0 0.0 0.0
16 5.6 9311.5 0.0 0.0 O.O.0.0 0.0 0.0
17 3.5 3649.8 0.0 0.0 o.O.0.0 0.0 0.0
18 5.0 1998.8 0.0 0.0 O.O.0.0 0.0 0.0
Failure Surface Specified By 13 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 389.421 176.316
2 404.382 177.393
3 419.195 179.757
4 433.748 183.392
5 447.933 188.269
6 461.643 194.353
7 474.778 201.598
8 487.237 209.950
9 498.930 219.347
10 509.767 229.718
11 519.668 240.986
12 528.559 253.066
13 535.844 265.000
Circle Center At X =384.452 ;y 349.818 ;and Radius 173.573
Factor of Safety
***1.363 ***
Failure Surface Specified By 15 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 387.000 174.000
2 401.942 175.318
3 416.766 177.609
4 431.408 180.865
5 445.807 185.070
6 459.899 190.208
7 473.626 196.257
8 486.928 203.189
9 499.748 210.977
10 512.032 219.585
U:\2010\10-036-00\Analyses\Slope Stability\1_s_r_1.0UT Page 4
11 523.726 228.979
12 534.782 239.116
13 545.151 249.955
14 554.790 261.449
15 556.289 263.495
Circle Center At X =374.338;Y 402.991 ;and Radius =229.341
Factor of Safety
***1.364 ***
Failure Surface Specified By 13 Coordinate Points
Point X-Surf Y-Surf
No.(ftl (ft)
1 388.211 175.158
2 403.135 176.661
3 417.869 179.471
4 432.300 183.566
5 446.314 188.914
6 459.804 195.473
7 472.665 203.193
8 484.797 212.014
9 496.106 221.868
10 506.506 232.678
11 515.914 244.360
12 524.259 256.825
13 528.745 265.000
Circle Center At X =378.608;Y 345.309 ;and Radius 170.422
Factor of Safety
***1.364 ***
Failure Surface Specified By 13 Coordinate Points
Point X-Surf Y-Surf
~.(ttl (tt)
1 389.421 176.316
2 404.394 177.213
3 419.226 179.454
4 433.795 183.022
5 447.984 187.887
6 461.678 194.010
7 474.764 201.341
8 487.137 209.821
9 498.697 219.380
10 509.348 229.941
11 519.006 241.419
12 527.591 253.720
13 534.037 265.000
Circle Center At X =386.968;Y 342.716 ;and Radius 166.418
Factor of Safety
***1.365 ***
Failure Surface Specified By 14 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 389.421 176.316
2 404.418 176.639
3 419.320 178.343
4 434.003 181.413
5 448.340 185.824
6 462.209 191.537
7 475.493 198.504
8 488.078 206.666
9 499.857 215.954
10 510.730 226.287
11 520.604 237.578
12 529.396 249.732
13 537.030 262.644
14 538.144 265.000
Circle Center At X =393.503;Y 338.515 ;and Radius 162.250
Factor of Safety
***1.367 ***
Failure Surface Specified By 14 Coordinate Points
Point X-Surf Y-Surf
U:\2010\10-036-00\Analyses\Slope Stability\l_s_r_1.0UT Page 5
No.(ft)(ft)
1 389.421 176.316
2 404.332 177.950
3 419.091 180.626
4 433.626 184.331
5 447.866 189.046
6 461.740 194.749
7 475.179 201.411
8 488.118 208.999
9 500.493 217.476
10 512.243 226.800
11 523.310 236.925
12 533.639 247.802
13 543.1BO 259.377
14 546.998 264.734
Circle Center At X =373.799;Y =388.7Bl i and Radius 213.039
Factor of Safety
***1.368 ***
Failure Surface Specified By 14 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 390.632 177.474
2 405.621 178.047
3 420.507 179.888
4 435.184 182.984
5 449.546 187.313
6 463.489 192.844
7 476.913 199.536
8 489.722 207.342
9 501.823 216.206
10 513.130 226.063
11 523.560 236.843
12 533.039 248.468
13 541.499 260.855
14 543.842 265.000
Circle Center At X =391.506;Y 353.799 i and Radius =176.328
Factor of Safety
***1.378 ***
Failure Surface Specified By 14 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ftl
1 389.421 176.316
2 404.421 176.253
3 419.369 177.499
4 434.152 180.045
5 448.656 183.870
6 462.770 188.946
7 476.389 195.235
8 489.406 202.688
9 501.724 211.248
10 513.248 220.850
11 523.890 231.421
12 533.569 242.880
13 542.212 255.140
14 547.734 264.636
Circle Center At X =397.729;Y 347.470 i and Radius 171.356
Factor of Safety
***1.379 ***
Failure Surface Specified By 14 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 389.421 176.316
2 404.154 179.133
3 418.687 182.846
4 432.966 187.441
5 446.938 192.900
6 460.549 199.204
7 473.749 206.328
245.038andRadius
U:\2010\10-036-00\Analyses\Slope Stability\1_s_r_1.0UT Page 6
486.488 214.246
498.720 222.929
510.398 232.344
521.478 242.455
531.919 253.225
541.681 264.613
541.974 265.000
Center At X =350.806;Y 418.292
Factor of Safety
***1.384 ***
****END OF GSTABL7 OUTPUT ****
8
9
10
11
12
13
14
Circle
500
400
300
200
100
Sect 2,Terrapaca Landslide,Fill height at toe for approx.1.25 FS
u:\2010\1 0-036·00\analyses\slope stabllity\2_s_1.2.pI2 Run By:John Smith,XYZ Company 9/28/2010 11 :OOAM
,"==-='=IF'==,.===t=..,1-·"===r=---l ).'---r--'..
#FS ~Oi1 Soil Total Saturated Cohesion Friction Pore Pressure'PieZ'j',a 1.3 Osse.Type Unit WI.Unit WI.Intercept Angle:Pressure Constant :Surface::
b 1.3 ~o.(pef)(pet)'(pst)(deg),Paramo (psf):No.I I
e 1.3 Qls ,1 104.5 110.0:0.0 21.0:0.00 0.0,0 ::
d 1.3 Qale '2 115.0 120.0 250.0 28.0'0.00 0.0'0 ',e 1.3 .~--:-_..."'--,-'-'.":_..~_.-::
f 1.3 I :::::a_L3.L L !!---------11-1 1 _
h 1.3::::J 1 ::
j 1.3,I J ~,/6 I I I
J 1.3::::15 1:::
::1 :::
J I I I I
I ,10 '"
:I 1 :::
I I I I t
j I I I I I
-----------~------------~-.----.-33 ----··---+------------t--------·---1------------1------------
I 6 1 I 1 I I I II2'],I ,,I~_I 1 I I I I I1..--....~I I J I I I
I I I I I
I I I I I
I I ,I 1
I t r I
:*11 ::::
I :~J I I I
36 37 I +-_I I ,I:r·...=--=-=-=-:-1-=--f - - - - --1-- - -..-1-- - --- - - - -..-..i-----------..-1-- - - - - - - - - -..-+-- -....------..+-..-- -..---- -..-..--....--- -....
I I I I I
I I J I I
I I I t I
I I I I I
I I I I I
I I I I I
I I I I I
f I I I I
I I I I I
I I I I I
I I I I I
I I I I I-_.._-------~---~------..---_.._-----"-~----.._------~------------~------------~----_.._----..~---------..-
I t I I I I I
I I r t I I I
I I I I I ~I
I I I I I ,
I I I I I I I
I I ,I I I I
I J t I I I I
I I I I !I I
I I I t I I I
I I ,I I I I
I I I I I I I
0 1.--.I
o 100
__L__1__...__1 .__..1 I.L
200 300 400 500 600 700
GSTABL7 v.2 FSmin=1.3
Safety Factors Are Calculated By The Simplified Janbu Method for the case of c=O
800
U:\2010\10-036-00\Ana1yses\Slope Stabi1ity\2_s_1.2.0UT Page 1
***GS~ABL7 ***
**GSTABL7 by Garry H.Gregory,P.E.**
**Original Version 1.0,January 1996;Current Version 2.005,Sept.2006 **
(All Rights Reserved-Unauthorized Use Prohibited)
k********************************************************************************
SLOPE STABILITY ANALYSIS SYSTEM
Modified Bishop,Simplified Janbu,or GLE Method of Slices.
(Includes Spencer &Morgenstern-Price Type Analysis)
Including Pier/Pile,Reinforcement,Soil Nail,Tieback,
Nonlinear Undrained Shear Strength,Curved Phi Envelope,
Anisotropic Soil,Fiber-Reinforced Soil,Boundary Loads,Water
Surfaces,Pseudo-Static &Newmark Earthquake,and Applied Forces.
*********************************************************************************
Analysis Run Date:9/28/2010
Time of Run:11:00AM
Run By:John Smith,XYZ Company
Input Data Filename:U:\2010\10-036-00\Ana1yses\Slope Stability\2 5 1.2.in
Output Filename:U:\2010\10-036-00\Ana1yses\Slope Stabi1ity\2=s=1.2.0UT
Unit System:English
Plotted Output Filename:U:\2010\10-036-00\Analyses\Slope stability\2_s_1.2.PLT
PROBLEM DESCR1PTION:Sect 2,Terrapaca Landslide,Fill
height at toe for approx.1.25 FS
BOUNDARY COORDINATES
17 Top Boundaries
40 Total Boundaries
Boundary X-Left Y-Left
No.(ft)(ft)
1 0.00 280.00
2 35.00 280.00
3 80.00 272.00
4 108.00 254.00
5 154.00 254.00
6 165.00 265.00
7 228.00 306.00
8 238.00 310.00
9 253.00 322.00
10 287.00 328.00
11 332.00 335.00
12 361.00 334.00
13 367.00 340.00
14 377.00 345.00
15 383.00 355.00
16 440.00 369.00
17 490.00 389.00
18 108.00 254.00
19 111.00 250.00
20 112.00 245.00
21 113.00 244.00
22 118.00 237.00
23 122.00 235.00
24 129.00 234.00
25 131.00 235.00
26 134.00 239.00
27 142.00 244.00
28 146.00 246.00
29 129.00 234.00
30 150.00 234.00
31 185.00 241.00
32 191.00 243.00
33 288.00 275.00
34 356.00 313.00
35 368.00 325.00
36 0.00 200.00
37 30.00 201.00
38 137.00 207.00
39 160.00 211.00
40 173.00 219.00
Default Y-Origin =O.OO(ft)
X-Right
(ft)
35.00
80.00
108.00
154.00
165.00
228.00
238.00
253.00
287.00
332.00
361.00
367.00
377 .00
383.00
440.00
490.00
521.00
111.00
112.00
113.00
118.00
122.00
129.00
131.00
134.00
142.00
146.00
154.00
150.00
185.00
191.00
288.00
356.00
368.00
377.00
30.00
137.00
160.00
173.00
185.00
Y-Right
(ft)
280.00
272.00
254.00
254.00
265.00
306.00
310.00
322.00
328.00
335.00
334.00
340.00
345.00
355.00
369.00
389.00
399.00
250.00
245.00
244.00
237.00
235.00
234.00
235.00
239.00
244.00
246.00
254.00
234.00
241.00
243.00
275.00
313.00
325.00
345.00
201.00
207.00
211.00
219.00
241.00
Soil Type
Below Bnd
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
U:\2010\10-036-00\Analyses\Slope Stability\2_s_1.2.0UT Page 2
0.20 %
Height
(ft)
0.10
1.00
1.00
1.00
1.00
1.00
1.00
0.00
Trial
Earthquake
Force Surcharge
Hor Ver Load
(lbs)(lbs) (lbs)
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
0.0 0.0 0.0
29 slices
Tie Tie
Force Force
Norm Tan
(lbs)(lbs)
O. O.
O.O.
O.O.
O.O.o. o.
o.O.
r'leight
(lbs)
2536.0
8277.7
14023.5
810.4
2289.0
6790.9
Width
(ft)
6.7
7.1
7.3
0.4
1.0
3.0
Default X-Plus Value =O.OO(ft)
Default Y-Plus Value =O.OO(ft)
ISOTROPIC SOIL PARAMETERS
2 Type(s)of Soil
Soil Total Saturated Cohesion Friction Pore Pressure Piez.
Type Unit Wt.Unit Wt.Intercept Angle Pressure Constant Surface
No.(pcf) (pef)(psf)(deg)Paramo (psf)No.
1 104.5 110.0 0.0 21.0 0.00 0.0 0
2 115.0 120.0 250.0 28.0 0.00 0.0 0
Searching Routine Will Be Limited To An Area Defined By 1 Boundaries
Of Which The First 1 Boundaries Will Deflect Surfaces Upward
Boundary X-Left Y-Left X-Right Y-Right
No.(ft)(ft)(tt) (ft)
1 108.00 254.00 109.00 200.00
Janbus Empirical Coef is being used for the case of c=O
A Critical Failure Surface Searching Method,using A Random
Technique For Generating Sliding Block Surfaces,Has Been
Specified.
10 Trial Surfaces Have Been Generated.
8 Boxes Specified For Generation Of Central Block Base
Length Of Line Segments For Active And Passive Portions Of
Sliding Block Is 10.0
Box X-Left Y-Left X-Right Y-Right
No.(ft)(ft)(ft)(ft)
1 130.00 234.00 130.00 234.00
2 150.00 234.00 150.00 234.00
3 185.00 241.00 185.00 241.00
4 191.00 243.00 191.00 243.00
5 288.00 275.00 288.00 275.00
6 356.00 313.00 356.00 313.00
7 368.00 325.00 368.00 325.00
8 377.00 345.00 377.00 345.00
Following Are Displayed The Ten Most Critical Of The
Failure Surfaces Evaluated.They Are
Ordered -Most Critical First.
* *Safety Factors Are Calculated By The Simplified Janbu Method **
Total Number of Trial Surfaces Attempted 10
Number of Trial Surfaces With Valid FS =10
Statistical Data On All Valid FS Values:
FS Max =1.307 FS Min =1.298 FS Ave 1.302
Standard Deviation =0.003 Coefficient of Variation =
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 108.467 254.000
2 115.170 247.420
3 122.311 240.420
4 130.000 234.026
5 150.000 234.189
6 185.000 240.613
7 191.000 242.626
8 288.000 275.073
9 356.000 312.547
10 368.000 325.392
11 377.000 345.000
Factor of Safety
***1.298 ***
Individual data on the
Water Water
Force Force
Top Bot
(lbs) (lbs)
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
0.0 0.0
Slice
No.
1
2
3
4
5
6
U:\2010\10-036-00\Analyses\Slope Stability\2_s_1.2.0UT Page 3
7 8.0 17693.5 0,0 0.0 O.O.0.0 0.0
0.0
a 4.0 8679.3 0.0 0.0 O.O.0.0 0.0 0.0
9 4.0 8539.7 0.0 0.0 O.O.0.0 0.0 0.0
10 4.0 8211.4 0.0 0.0 O.O.0.0 0.0 0.0
11 7.5 17337.8 0.0 0.0 O.O.0.0 0.0 0.0
12 3.5 9752.6 0.0 0.0 O.O.0.0 0.0 0.0
13 19.8 67490.5 0.0 0.0 O.O.0.0 0.0 0.0
14 0.2 916.2 0.0 0.0 O.O.0.0 0.0 0.0
15 6.0 24044.8 0.0 0.0 O.O.0.0 0.0 0.0
16 37.0 174557.4 0.0 0.0 O.O.0.0 0.0 0.0
17 10.0 53634.6 0.0 0.0 O.O.0.0 0.0 0.0
18 15.0 86437.7 0.0 0.0 O. O.0.0 0.0 0.0
19 19.2 114703.5 0.0 0.0 o.o.0.0 0.0 0.0
20 14.8 84081.a 0.0 0.0 O.O.0.0 0.0 0.0
21 1.0 5556.5 0.0 0.0 o.O.0.0 0.0 0.0
22 9.4 50315.7 0.0 0.0 O.O.0.0 0.0 0.0
23 34.6 153748.6 0.0 0.0 o.O.0.0 0.0 0.0
24 24.0 71860.4 0.0 0.0 O.O.0.0 0.0 0.0
25 5.0 9856.1 0.0 0.0 o.O.0.0 0.0 0.0
26 1.4 2405.5 0.0 0.0 O.O.0.0 0.0 0.0
27 4.6 7557.4 0.0 0.0 o.o.0.0 0.0 0.0
28 1.0 1608.6 0.0 0.0 O.O.0.0 0.0 0.0
29 9.0 7104.5 0.0 0.0 o.o.0.0 0.0 0.0
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 1013.852 254.000
2 115.360 247.560
3 122.432 240.491
4 130.000 233.954
5 150.000 234.124
6 185.000 241.498
7 191.000 242.634
8 288.000 275.251
9 356.000 312.817
10 368.000 324.551
11 377.000 345.000
Factor of Safety
***1.301 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 108.893 254.000
2 115.334 247.571
3 122.831 240.954
4 130.000 233.982
5 150.000 234.461
6 185.000 241.488
7 191.000 242.620
8 288.000 275.327
9 356.000 312.826
10 368.000 325.088
11 377.000 345.000
Factor of Safety
***1.301 ***
Failure Surface Specified By 11 Coordinate Points
point X-Surf Y-Surf
No.(ft)(ft)
1 109.028 254.000
2 115.392 247.686
3 122.602 240.757
4 130.000 234.028
5 150.000 234.218
6 185.000 241.461
7 191.000 242.607
8 288.000 274.999
9 356.000 312.731
10 368.000 324.647
U:\2010\10-036-00\Analyses\Slope stability\2_s_1.2.0UT Page 4
11 377.000 345.000
Factor of Safety
***1.301 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 108.423 254.000
2 115.240 247.472
3 122.759 240.878
4 130.000 233.982
5 150.000 234.387
6 185.000 241.076
7 191.000 242.979
8 288.000 274.942
9 356.000 312.557
10 368.000 325.167
11 377.000 345.000
Factor of Safety
***1.302 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 109.758 254.000
2 115.778 248.095
3 122.851 241.026
4 130.000 ·234.033
5 150.000 234.169
6 185.000 240.704
7 191.000 243.156
8 288.000 275.496
9 356.000 313.441
10 368.000 325.460
11 377.000 345.000
Factor of Safety
***1.303 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 109.697 254.000
2 115.749 248.066
3 122.871 241.046
4 130.000 234.034
5 150.000 233.602
6 185.000 241.254
7 191.000 243.011
8 288.000 275.342
9 356.000 313.467
10 368.000 325.353
11 377.000 345.000
Factor of Safety
***1.303 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 109.279 254.000
2 115.755 248.035
3 122.828 240.965
4 130.000 233.997
5 150.000 233.928
6 185.000 240.632
7 191.000 243.177
8 28B.000 275.405
9 356.000 312.910
10 368.000 325.037
11 377.000 345.000
Factor of Safety
***1.304 ***
Failure Surface Specified By 11 Coordinate Points
U:\2010\10-036-00\Analyses\Slope Stability\2_s_1.2.0UT Page 5
Point X-Surf Y-Surf
No.(tt)(ftl
1 109.731 254.000
2 115.7B5 24B.03B
3 122.897 241.00B
4 130.000 233.969
5 150.000 233.680
6 185.000 240.576
7 191.000 242.718
8 288.000 275.200
9 356.000 312.866
10 368.000 325.309
11 377.000 345.000
Factor of Safety
***1.304 ***
Failure Surface Specified By 11 Coordinate points
Point X-Surf Y-Surf
No.(tt)(ft)
1 108.705 254.000
2 115.771 248.075
3 122.842 241.004
4 130.000 234.021
5 150.000 234.208
6 185.000 240.925
7 191.000 243.200
B 28B.000 274.627
9 356.000 312.550
10 368.000 325.063
11 377.000 345.000
Factor of Safety
***1.307 ***
****END OF GSTABL7 OUTPUT ****
800700600500300200400
GSTABL7 v.2 FSmin=1.5
Safety Factors Are Calculated By The SimplifIed Janbu Method for the case of c=O
100
Sect 2,Terrapaca Landslide,Fill height at toe for approx.1.5 FS
u:\2010\10-036-00\analyses\slope stability\2_s_1~3.pI2 Run By:John Smith,XYZ Company 9(28(2010 11:05AM
~--I '-'-----I I
Soil Soil Total Saturated Cohesion Friction Pore Pressure'Piez,1 I
Dese.Type Unit WI.Unit 'I'll.Intercept Angle:Pressure Constant ~Surface::
~o.(pet)(pet):(pst)(deg):Paramo (pst):No.::
Qls ,1 104.5 110.0,0,0 21.0 1 0.00 0,0 I ° , ,
Qafe :2 115.0 120.0.__??O.O 28.0:0.00 0.0;a ::
I I I I I I
I I [I I I
I I I I I I
----..-~------------~----------..-~--------..---+-------··----~1----------~--··_--------'1-----------
::~:16:1 ::
:::15 1:::
::I 1 :::
I I •I 1 I,,10 I I 1 1
j I I I r
I 8 1 1 1 I I 1 I
I :7 1:::::
..- - - -..- - - -_.I'- - - - - - - - - - - -,.- --1-- - - - - -..t ..!J.}- - - -..,--..t -..- - - - - -......-~- - - - - - -....- - --+..- -....- - - - -....--+...- - - - -..- - - -_.
I
'6''1 1 ,1 ,~,,:1 ::::
1 4~\""
,I I I
I I I I
I I I ,
I I I I
I I I I I I*r:41.1 I ~:::
38 i!!...~.iQ....'1:::::f-~-""---1rf .._-....j"-----f---"--------r---""---"---i-"----------i-..---------..7--------....--1-----------
I ,I I 1 I I
I I I ,r I t
I I I I I I
l I I I ,I
I I I I I I
I I I I I I
I I I I I I
I I I 1 I t
I I I I I J
I I I I I I
I I I I I I
,J I t I I I--------~----.._------~----------~------------r------------~-----------'·1------------~-------··---
I I 1 I I I
I I I I I I
I ,I I I I
I t I I I I
I I I I I ,
I I r I I I
I I r j I I
I I J I I I
I I I I I I
(I I I I I
I I I I I I
#FS
a 1.5
b 1.5
e 1.6
d 1.6
e 1.6
f 1.6
_...9_1-6
h 1.6
I 1.6
j 1.6
o
o
500
200
300
400
100
U:\2010\10-036-00\Analyses\Slope Stability\2_s_1.3.0UT Page 1
***GSTABL7 *****GSTABL7 by Garry H.Gregory,P.E.**
**Original Version 1.0,January 1996;Current Version 2.005,Sept.2006 **
(All Rights Reserved-Unauthorized Use Prohibited)
*********************************************************************************
SLOPE STABILITY ANALYSIS SYSTEM
Modified Bishop,Simplified Janbu,or GLE Method of Slices.
(Includes Spencer &Morgenstern-Price Type Analysis)
Including Pier/Pile,Reinforcement,Soil Nail,Tieback,
Nonlinear Undrained Shear Strength,Curved Phi Envelope,
Anisotropic Soil,Fiber-Reinforced Soil,Boundary Loads,Water
Surfaces,Pseudo-Static &Newmark Earthquake,and Applied Forces.
*********************************************************************************
Analysis Run Date:9/28/2010
Time of Run:11:05AM
Run By:John Smith,XYZ Company
Input Data Filename:U:\2010\10-036-00\Analyses\Slope Stability\2 s 1.3.in
Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\2=s=1.3.0UT
Unit System:English
Plotted Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\2_s_1.3.PLT
PROBLEM DESCRIPTION:Sect 2,Terrapaca Landslide,Fill
height at toe for approx.1.5 FS
BOUNDARY COORDINATES
17 Top Boundaries
42 Total Boundaries
Boundary X-Left
No.(ft)
1 0.00
2 35.00
'3 80.00
4 92.00
5 164.00
6 165.00
7 228.00
8 238.00
9 253.00
10 287.00
11 332.00
12 361.00
13 367.00
14 377.00
15 383.00
16 440.00
17 490.00
18 92.00
19 108.00
20 111.00
21 112.00
22 113.00
23 118.00
24 122.00
25 129.00
26 131.00
27 134.00
28 142.00
29 146.00
30 154.00
31 129.00
32 150.00
33 185.00
34 191.00
35 288.00
36 356.00
37 368.00
38 0.00
39 30.00
40 137.00
41 160.00
Y-Left
(ft)
280.00
280.00
272.00
264.00
264.00
265.00
306.00
310.00
322.00
328.00
335.00
334.00
340.00
345.00
355.00
369.00
389.00
264.00
254.00
250.00
245.00
244.00
237.00
235.00
234.00
235.00
239.00
244.00
246.00
254.00
234.00
234.00
241.00
243.00
275.00
313.00
325.00
200.00
201.00
207.00
211.00
X-Right
(ft)
35.00
80.00
92.00
164.00
165.00
228.00
238.00
253.00
287.00
332.00
361.00
367.00
377.00
383.00
440.00
490.00
521.00
108.00
111.00
112.00
113.00
118.00
122.00
129.00
131.00
134.00
142.00
146.00
154.00
164.00
150.00
185.00
191.00
288.00
356.00
368.00
377.00
30.00
137.00
160.00
173.00
Y-Right
(ft)
280.00
272.00
264.00
264.00
265.00
306.00
310.00
322.00
328.00
335.00
334.00
340.00
345.00
355.00
369.00
389.00
399.00
254.00
250.00
245.00
244.00
237.00
235.00
234.00
235.00
239.00
244.00
246.00
254.00
264.00
234.00
241.00
243.00
275.00
313.00
325.00
345.00
201.00
207.00
211.00
219.00
Soil Type
Below Bnd
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
U:\2010\10-036-00\Ana1yses\Slope Stability\2_s_1.3.0UT Page 2
1.73 %
1
Height
(ft)
0.10
1.00
1.00
1.00
1.00
1.00
1.00
0.00
Trial
Earthquake
Force Surcharge
Hor Ver Load
(lbs)(lbs)(lbs)
0.0 0.0 0.0
0.0 0.0 0.0
10
241.00
37 slices
Tie Tie
Force Force
Norm Tan
(lbs)(lbs)
O.O.
O.O.
185.00
Weight
(lbs)
22.3
2008.8
width
(ft)
0.6
5.4
42 173.00 219.00
Default Y-Origin =O.OO(ft)
Default X-Plus Value =O.OO(ft)
Default Y-Plus Value =O.OO(ft)
ISOTROPIC SOIL PARAMETERS
2 Type(s)of Soil
Soil Total Saturated Cohesion Friction Pore Pressure Piez.
Type Unit Wt.Unit \'It.Intercept Angle Pressure Constant Surface
No.(pcf)(pcf)(psf)(deg)Paramo (psf)No.
1 104.5 110.0 0.0 21.0 0.00 0.0 0
2 115.0 120.0 250.0 28.0 0.00 0.0 0
Searching Routine Will Be Limited To An Area Defined By 1 Boundaries
Of Which The First 1 Boundaries Will Deflect Surfaces Upward
Boundary X-Left Y-Left X-Right Y-Right
No.(ft)(ft) (ft)(ft)
1 92.00 264.00 93.00 200.00
Janbus Empirical Coef is being used for the case of c=O
A Critical Failure Surface Searching Method,Using A Random
Technique For Generating Sliding Block Surfaces,Has Been
Specified.
10 Trial Surfaces Have Been Generated.
8 Boxes Specified For Generation Of Central Block Base
Length Of Line Segments For Active And Passive Portions Of
Sliding Block Is 10.0
Box X-Left Y-Left X-Right Y-Right
No.(ft)(ft)(ft)(ft)
1 130.00 234.00 130.00 234.00
2 150.00 234.00 150.00 234.00
3 185.00 241.00 185.00 241.00
4 191.00 243.00 191.00 243.00
5 288.00 275.00 288.00 275.00
6 356.00 313.00 356.00 313.00
7 368.00 325.00 368.00 325.00
8 377.00 345.00 377.00 345.00
Following Are Displayed The Ten Most Critical Of The
Failure Surfaces Evaluated.They Are
Ordered -Most Critical First.
**Safety Factors Are Calculated By The Simplified Janbu Method **
Total Number of Trial Surfaces Attempted 10
Number of Trial Surfaces With Valid FS =
Statistical Data On All Valid FS Values:
FS Max =1.621 FS Min =1.521 FS Ave 1.567
Standard Deviation =0.027 Coefficient of Variation
Failure Surface Specified By 13 Coordinate Points
Point X-Surf Y-Surf
~.(tt)(ft)
1 92.373 264.000
2 98.401 257.975
3 105.551 250.983
4 112.728 244.020
5 121.526 239.266
6 130.000 233.956
7 150.000 234,107
8 185.000 241.380
9 191.000 242.852
10 288.000 274.742
11 356.000 313.019
12 368.000 325.402
13 377.000 345.000
Factor of Safety
***1.521 ***
Individual data on the
~later \'later
Force Force
Top Bot
(lbs)(lbs)
0.0 0.0
0.0 0.0
Slice
No.
1
2
U:\2010\10-036-00\Ana1yses\Slope Stabi1ity\2_s_1.3.0UT Page 3
3 7.1 7581.0 0.0 0.0 O. O.0.0 0.0 0.0
4 2.4 3873.6 0.0 0.0 O.O.0.0 0.0 0.0
5 3.0 5660.0 0.0 0.0 O.O.0.0 0.0 0.0
6 1.0 2136.7 0.0 0.0 O.O.0.0 0.0 0.0
7 0.7 1641.7 0.0 0.0 o.o.0.0 0.0 0.0
8 0.3 626.2 0.0 0.0 o.O.0.0 0.0 0.0
9 0.1 342.3 0.0 0.0 O.O.0.0 0.0 0.0
10 8.4 21650.2 0.0 0.0 o.o.0.0 0.0 0.0
11 8.0 25032.7 0.0 0.0 O.O.0.0 0.0 0.0
12 0.4 1417.7 0.0 0.0 O.O.0.0 0.0 0.0
13 0.1 239.5 0.0 0.0 o.o.0.0 0.0 0.0
14 1.0 3446.3 0.0 0.0 o.o.0.0 0.0 0.0
15 3.0 10263.2 0.0 0.0 o.o.0.0 0.0 0.0
16 1.8 6036.4 0.0 0.0 O.O.0.0 0.0 0.0
17 6.2 20919.6 0.0 0.0 o.O.0.0 0.0 0.0
18 4.0 13312.1 0.0 0.0 o.o.0.0 0'.0 0.0
19 4.0 13173.5 0.0 0.0 O.O.0.0 0.0 0.0
20 4.0 12825.5 0.0 0.0 O.O.0.0 0.0 0.0
21 10.0 29808.7 0.0 0.0 O.o.0.0 0.0 0.0
22 1.0 2861.2 0.0 0.0 o.O.0.0 0.0 0.0
23 20.0 67310.2 0.0 0.0 o.o.0.0 0.0 0.0
24 4.3 16935.5 0.0 0.0 o.O.0.0 0.0 0.0
25 1.7 6797.8 0.0 0.0 O. O.0.0 0.0 0.0
26 37.0 174092.9 0.0 0.0 O.O.0.0 0.0 0.0
27 10.0 53649.9 0.0 0.0 O. O.0.0 0.0 0.0
28 15.0 86573.2 0.0 0.0 o.o.0.0 0.0 0.0
29 34.0 199591.1 0.0 0.0 O.O.0.0 0.0 0.0
30 1.0 5590.7 0.0 0.0 O. O.0.0 0.0 0.0
31 44.0 204389.0 0.0 0.0 o.O.0.0 0.0 0.0
32 19.3 59896.3 0.0 0.0 O.O.0.0 0.0 0.0
33 4.7 11134.6 0.0 0.0 O.O.0.0 0.0 0.0
34 5.0 9659.6 0.0 0.0 O. O.0.0 0.0 0.0
35 6.0 9860.1 0.0 0.0 o.o.0.0 0.0 0.0
36 1.0 1605.6 0.0 0.0 o.O.0.0 0.0 0.0
37 9.0 7100.a 0.0 0.0 O.O.0.0 0.0 0.0
Failure Surface Specified By 13 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 93.283 264.000
2 98.663 258.622
3 105.B35 251.654
4 113.655 245.421
5 122.351 240.482
6 130.000 234.041
7 150.000 233.969
B 185.000 240.928
9 191.000 242.632
10 2B8.000 275.177
11 356.000 313.405
12 368.000 324.910
13 377.000 345.000
Factor of Safety
***1.539 ***Failure Surface Specified By 13 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 93.423 264.000
2 98.752 25B.733
3 106.374 252.259
4 113.756 245.514
5 121.276 238.922
6 130.000 234.034
7 150.000 233.945
B 185.000 240.870
9 191.000 243.338
10 288.000 275.318
11 356.000 312.529
12 368.000 325.438
U:\2010\10-036-00\Ana1yses\Slope Stability\2_s~1.3.0UT Page 4
13 377.000 345.000
Factor of Safety
***1.555 ***
Failure Surface Specified By 13 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 93.030 264.000
2 98.593 258.554
3 107.225 253.504
4 114.617 246.770
5 122.331 240.406
6 130.000 233.988
7 150.000 234.069
8 185.000 240.517
9 191.000 242.946
10 288.000 274.825
11 356.000 313.371
12 368.000 324.554
13 377.000 345.000
Factor of Safety
***1.560 ***
Failure Surface Specified By 13 Coordinate Points
point X-Surf Y-Surf
No.(ft)(ft)
1 93.313 264.000
2 98.747 258.795
3 106.882 252.981
4 114.718 246.768
5 121.810 239.717
6 130.000 233.980
7 150.000 234.478
8 185.000 240.606
9 191.000 243.403
10 288.000 274.836
11 356.000 312.624
12 368.000 325.237
13 377.000 345.000
Factor of Safety
***1.567 ***
Failure Surface Specified By 13 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 93.133 264.000
2 99.181 259.053
3 106.492 252.230
4 115.366 247.620
5 122.636 240.753
6 130.000 233.988
7 150.000 234.427
8 185.000 240.655
9 191.000 243.160
10 288.000 275.287
11 356.000 313.128
12 368.000 324.528
13 377.000 345.000
Factor of Safety
***1.569 ***
Failure Surface Specified By 13 Coordinate Points
point X-Surf Y-Surf
No.(ft)(ft)
1 94.343 264.000
2 99.507 259.790
3 106.782 252.929
4 114.627 246.728
5 121.946 239.913
6 130.000 233.986
7 150.000 233.846
8 185.000 240.877
U:\2010\10-036-00\Ana1yses\Slope Stability\2_s_1.3.0UT Page 5
9 191.000 242.920
10 288.000 274.693
11 356.000 312.665
12 368.000 325.055
13 377.000 345.000
Factor of Safety
***1.571 ***
Failure Surface Specified By 13 Coordinate Points
Point X-Surf Y-Surf
No.(ft) (ft)
1 94.404 264.000
2 100.087 260.425
3 107.239 253.435
4 114.321 246.376
5 122.165 240.173
6 130.000 233.959
7 150.000 233.687
8 185.000 241.158
9 191.000 243.093
10 288.000 275.336
11 356.000 313.482
12 368.000 324.874
13 377.000 345.000
Factor of Safety
***1.579 ***
Failure Surface Specified By 13 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 92.099 264.000
2 99.961 260.342
3 107.455 253.721
4 114.544 246.667
5 121.932 239.929
6 130.000 234.020
7 150.000 234.015
8 185.000 241.133
9 191.000 243.154
10 288.000 275.421
11 356.000 313.028
12 368.000 324.819
13 377.000 345.000
Factor of Safety
***1.589 ***
Failure Surface specified By 13 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 97.743 264.000
2 101.191 261.721
3 108.467 254.861
4 115.792 248.053
5 122.863 240.982
6 130.000 233.977
7 150.000 234.465
8 185.000 241.279
9 191.000 243.308
10 288.000 275.395
11 356.000 313.135
12 368.000 324.871
13 377.000 345.000
Factor of Safety
***1.621 ***
****END OF GSTABL7 OUTPUT ****
200 +401 ..
700600
r------,,,
,I
,I
I I
I I
I ,
I ,,,
,I
,I
I ,
I ,
...."----- - --- L - -..- -..-..- -2~'-'-....--..- - -...--
1
1
22
I ,.,.....I ,
300 400 500
GSTABl7 v.2 FSmln==1.2
Safety Factors Are Calculated By The Simplified Janbu Method for the case of c=O
Sect 3,Terrapaca Landslide,Fill height at toe for approx.1.25 FS
u:\201 0\1 0·036-0D\analyses\slopa stabifity\3_s_1.1.pI2 Run By:John Smith,XYZ Company 9/28/2010 11 :06AM
.,-.-.--.-.-t-.
100
..I -...--------,I
Soil Soil'Total Saturated Cqhesfon Friction Pore:Pressure Piez,
Dasc.Type Unit WI.Unit WI.Intercept Angle Pressure Constant Surface
No.:(pet) (pet)(pst)(deg)Param;.(pst)No.
Qls 1,104.5 110.0 ,0.0 24.0 0.00 I 0.0 °
Qafc 2:115.0 120.0 450.0 28.q ...O.00:0.0 0
#FS
a 1.2
b 1.2
c 1.2
d 1.2
a 1,2
f 1.2
9 1.2
11-1.2
i 1.3
J 2.0
1
____,J!._-
l 200o
o
300
500
400
100
U:\2010\10-036-00\Analyses\Slope Stability\3_s_1.1.0UT Page 1
***GSTABL7 *****GSTABL7 by Garry H.Gregory,P.E.**
**Original Version 1.0,January 1996;Current Version 2.005,Sept.2006 **
(All Rights Reserved-Unauthorized Use Prohibited)
*********************************************************************************
SLOPE STABILITY ANALYSIS SYSTEM
Modified Bishop,Simplified Janbu,or GLE Method of Slices.
(Includes Spencer &Morgenstern-Price Type Analysis)
Including Pier/Pile,Reinforcement,Soil Nail,Tieback,
Nonlinear Undrained Shear Strength,Curved Phi Envelope,
Anisotropic Soil,Fiber-Reinforced Soil,Boundary Loads,Water
Surfaces,Pseudo-Static &Newmark Earthquake,and Applied Forces,
*********************************************************************************
Analysis Run Date:9/28/2010
Time of Run:11:06AM
Run By:John Smith,XYZ Company
Input Data Filename:U:\2010\10-036-00\Ana1yses\Slope Stability\3 s 1.1.in
Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\3=s=1.1.0UT
Unit System:English
Plotted Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\3_s_1.1.PLT
PROBLEM DESCRIPTION:Sect 3,Terrapaca Landslide,Fill
height at toe for approx.1.25 FS
BOUNDARY COORDINATES
26 Top Boundaries
46 Total Boundaries
Boundary X-Left
No.(ft)
1 0.00
2 26.00
3 82.00
4 87.00
5 99.50
6 125.00
7 134.00
8 140.00
9 151.00
10 162.00
11 177.00
12 190.00
13 197.00
14 221.00
15 226.00
16 242.00
17 249.00
18 261.00
19 263.00
20 265.00
21 272.00
22 368.00
23 405.00
24 451.00
25 496.00
26 562.00
27 99.50
28 101.00
29 105.00
30 110.00
31 122.00
32 110.00
33 126.00
34 146.00
35 176.00
36 196.00
37 236.00
38 251.00
39 256.00
40 0.00
41 46.00
Y-Left
(ftl
280.00
267.00
260.00
258.00
236.00
236.00
244.00
253.00
262,00
273.00
276.00
282.00
282.00
283.00
284.00
285.00
288,00
299,00
304.00
306.00
309.00
329.00
332.00
338.00
349.00
382,00
236.00
231.00
226.00
225.00
234.00
225.00
224.00
229.00
243,00
253,00
273.00
281.00
286.00
200.00
200.00
X-Right
(ft)
26.00
82.00
87.00
99.50
125.00
134.00
140.00
151.00
162.00
177.00
190.00
197.00
221.00
226.00
242.00
249.00
261.00
263.00
265.00
272.00
368.00
405.00
451.00
496.00
562.00
604.00
101.00
105.00
110.00
122.00
125.00
126.00
146.00
176.00
196.00
236.00
251.00
256.00
261.00
46,00
106.00
Y-Right
(ft)
267.00
260.00
258.00
236.00
236.00
244.00
253.00
262.00
273.00
276.00
282.00
282.00
283.00
284.00
285.00
288.00
299.00
304.00
306.00
309.00
329.00
332.00
338.00
349.00
382.00
396.00
231.00
226.00
225.00
234.00
236.00
224.00
229.00
243.00
253.00
273.00
281.00
286.00
299.00
200.00
203.00
Soil Type
Belo\'1 Bnd
1
1
1
1
2
1
I
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
U:\2010\10-036-00\Ana1yses\Slope Stabi1ity\3_s_1.1.0UT Page 2
19.10 %
1
1
1
1
1
Earthquake
Force Surcharge
Hor Ver Load
c=O
Random
Been
Height
(ft)
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Trial
10
203.00
206.00
209.00
216.00
253.00
24 slices
Tie Tie
Force Force
Norm Tan
146.00
175.00
182.00
188.00
196.00
\1eightWidth
42 106.00 203.00
43 146.00 203.00
44 175.00 206.00
45 182.00 209.00
46 188.00 216.00
Default Y-Origin ~O.OO(ft)
Default X-Plus Value ~O.OO(ft)
Default Y-Plus Value ~O.OO(ft)
ISOTROPIC SOIL PARAMETERS
2 Type(s)of Soil
Soil Total Saturated Cohesion Friction Pore Pressure Piez.
Type Unit Wt.Unit Wt.Intercept Angle Pressure Constant Surface
No.(pef)(pcf)(psf)(deg)Paramo (psf)No.
1 104.5 110.0 0.0 24.0 0.00 0.0 0
2 115.0 120.0 250.0 28.0 0.00 0.0 0
Searching Routine Will Be Limited To An Area Defined By 1 Boundaries
Of Which The First 1 Boundaries Will Deflect Surfaces Upward
Boundary X-Left Y-Left X-Right Y-Right
No.(ft)(ft)(ft)(ft)
1 100.00 235.00 101.00 200.00
Janbus Empirical Coef is being used for the case of
A Critical Failure Surface Searching Method,Using A
Technique For Generating Sliding Block Surfaces,Has
Specified.
10 Trial Surfaces Have Been Generated.
9 Boxes Specified For Generation Of Central Block Base
Length Of Line Segments For Active And Passive portions Of
Sliding Block Is 15.0
Box X-Left Y-Left X-Right Y-Right
No.(ft) (ft)(ft)(ft)
1 117.00 225.00 117.00 225.00
2 126.00 224.00 126.00 224.00
3 146.00 229.00 146.00 229.00
4 176.00 243.00 176.00 243.00
5 196.00 253.00 196.00 253.00
6 236.00 273.00 236.00 273.00
7 251.00 281.00 251.00 281.00
8 256.00 286.00 256.00 286.00
9 261.00 299.00 261.00 299.00
Following Are Displayed The Ten Most Critical Of The
Failure Surfaces Evaluated.They Are
Ordered -Most Critical First.
* *Safety Factors Are Calculated By The Simplified Janbu Method * *
Total Number of Trial Surfaces Attempted 10
Number of Trial Surfaces With Valid FS =
Statistical Data On All Valid FS Values:
FS Max =2.044 FS Min =1.241 FS Ave 1.325
Standard Deviation =0.253 Coefficient of Variation
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 103.069 236.000
2 105.210 234.273
3 117.000 225.000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281.000
10 256.000 286.000
11 261.000 299.000
Factor of Safety
***1.241 ***
Individual data on the
Water Water
Force Force
Top BotSlice
U:\2010\10-036-00\Analyses\Slope Stability\3_s_1.1.0UT Page 3
No.(ft)(lbs) (lbs)(lbs)(lbs)(lbs)(lbs)(lbs)(lbs)
1 2.1 212.6 0.0 0.0 O.O.0.0 0.0 0.0
2 8.4 4833.4 0.0 0.0 O.O.0.0 0.0 0.0
3 3.4 3700.0 0.0 0.0 O.O.0.0 0.0 0.0
4 5.0 6096.1 0.0 0.0 o.O.0.0 0.0 0.0
5 3.0 3706.4 0.0 0.0 O.O.0.0 0.0 0.0
6 1.0 1294.6 0.0 0.0 O.O.0.0 0.0 0.0
7 8.0 12911.6 0.0 0.0 O.O.0.0 0.0 0.0
8 6.0 13637.2 0.0 0.0 O.O.0.0 0.0 0.0
9 6.0 17057.2 0.0 0.0 O.O.0.0 0.0 0.0
10 5.0 15564.2 0.0 0.0 O.O.0.0 0.0 0.0
11 11.0 38623.2 0.0 0.0 o.O.0.0 0.0 0.0
12 14.0 50717.3 0.0 0.0 O.O.0.0 0.0 0.0
13 1.0 3411.9 0.0 0.0 O.O.0.0 0.0 0.0
14 13.0 43811.6 0.0 0.0 O. O.
0.0 0.0 0.0
15 6.0 19123.5 0.0 0.0 O.O.0.0 0.0 0.0
16 1.0 3004.4 0.0 0.0 O.O.0.0 0.0 0.0
17 24.0 57684.0 0.0 0.0 O.o.0.0 0.0 0.0
18 5.0 8751.9 0.0 0.0 O.O.0.0 0.0 0.0
19 10.0 14434.1 0.0 0.0 o.O.0.0 0.0 0.0
20 6.0 6403.2 0.0 0.0 O.O.0.0 0.0 0.0
21 7.0 6169.0 0.0 0.0 O.O.0.0 0.0 0.0
22 2.0 1766.0 0.0 0.0 O. O.0.0 0.0 0.0
23 5.0 4506.6 0.0 0.0 O.O.0.0 0.0 0.0
24 5.0 2198.9 0.0 0.0 O.O.0.0 0.0 0.0
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 103.329 236.000
2 105.231 234.300
3 117.000 225.000
4 126.000 224.000
5 146.000 22!L 000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281.000
10 256.000 286.000
11 261.000 299.000
Factor of Safety
***1.241 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 102.921 236.000
2 105.441 234.560
3 117.000 225.000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281.000
10 256.000 286.000
11 261.000 299.000
Factor of Safety
***1.242 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 103.642 236.000
2 105.324 234.417
3 117.000 225.000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
U:\2010\10-036-00\Analyses\Slope Stability\3_s_1.1.0UT Page 4
9 251.000 281.000
10 256.000 286.000
11 261.000 299.000
Factor of Safety
***1.242 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 102,620 236.000
2 104.841 233.783
3 117.000 225.000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281.000
10 256.000 286.000
11 261,000 299.000
Factor of Safety
***1.242 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 100.203 236.000
2 105,313 234.403
3 117.000 225.000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281.000
10 256.000 286.000
11 261.000 299.000
Factor of Safety
***1.245 ***
Failure Surface specified By 11 Coordinate Points
point X-Surf Y-Surf
No.(ft)(ft)
1 103.595 236.000
2 105.959 235.153
3 117.000 225.000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281.000
10 256.000 286.000
11 261.000 299.000
Factor of Safety
***1.248 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No,(ft)(ft)
1 105.313 236.000
2 106.059 235.261
3 117.000 225,000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281,000
10 256.000 286.000
11 261.000 299.000
Factor of Safety
U:\2010\10-036-00\Analyses\Slope Stability\3_s_1.1.0UT Page 5
***1.248 ***
Failure Surface specified By 11 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 105.536 236.000
2 106.343 235.556
3 117.000 225.000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281.000
10 256.000 286.000
11 261.000 299.000
Factor of Safety
***1.252 ***
Failure Surface Specified By 15 Coordinate points
Point X-Surf Y-Surf
No.(it)(ft)
1 43.728 264.784
2 53.941 258.576
3 68.593 255.362
4 80.468 246.199
5 91.371 235.896
6 106.368 235.581
7 117.000 225.000
8 126.000 224.000
9 146.000 229.000
10 176.000 243.000
11 196.000 253.000
12 236.000 273.000
13 251.000 281.000
14 256.000 286.000
15 261.000 299.000
Factor of Safety
***2.044 k**
****END OF GSTABL7 OUTPUT ****
Sect 3,Terrapaca Landslide,Fill height at toe for approx.1.5 FS
u:\2010\1 0·036-00\analyses\slope stability\3_s_1.20p[2 Run By:John Smith,XYZ Company 9/28/2010 11 :08AM
500 [";===---"-....-...I I I I I I I
700
#FS
a 1.5
b 1.5
c 1.5
d 1.5
e 1.5
f 1.5
9 1.5
h-t.5
i 1.5
j 1.5
Soil Soil:Total Saturated Cohesion Friction Pore'Pressure Piez.-I :'
Desco Type Unit WI.Unit WI,Inlercept Angle Pressure Constant Surface :I :
No.:(pet)(pct)~psf)(deg)Param~(psf)No.:::
Ols 1,104.5 110.0 ,0.0 24.0 0.00,0.0 0 I ,,
~~f~.....2 _;_~.1.?:O 12000 ~.sO,O ..__~~:9___g~9.Q.;0.0 0 :::
I I I f I I
I I l I I I
I I I I I I
I •I I J 1................:--..-----..'----..-~..- - - - - - - -~- - - --~- - -..--.,25"-L - - - - - - - - - -..- -
I I"~1
I I I 1"""'--1
t I I I
I I I I
I I I I
:::23 I
,lil'21 I 22 1 I
::1 I 1 :
I I I
I I I I t.........,__,_-..- -..-..- - - - - -..__1 fjI1 ..-..J -__- - - - - -..- - - -1 _ - - - _ - _ -..-..L -..-..-_ - - - - L --- - - - - - - - - - - -
:10 1 :I2 1114 J5 1::::,9,l'I 1 I
I 8 1 11 I 16 l'I ,,
:7 1:::::, 6 1 35,1 I ,,,
"llI;~~.I</rf1 34 ,,:::::
.113 1 l'r ,,,
j l -1 1 I.:::::
40 41 .42 43 .1·...1 I I I ,I--1-~~=.r--=-,•1 e_t -'I---:--------- -----~---------------:---n ---_n ~-_n - n ..n ----~---n ---_........
I I I I
I I I I
I I I I
I I I I
I 'I I
[I I I
I I I r
\I r I
I I I I
I I I I
I 1 I I
I r I I_____________.....•J ...._..~_..l ..L _
I I I I
I I I I
j I I I
I I I I
I I I I
I 'I I
I I I \
I t I I
I t I I
J r I I
I r I I
I 1 I I
I I I I 1 .._L._
100 200 300 400 500 600
GSTABL7 v.2 FSmin=1.5
Safety Factors Are Calculated By The Simplified Janbu Method for the case of c=O
o
o
200
100
300
400
U:\2010\10-036-00\Analyses\Slope Stability\3_s_1.2.0UT Page 1
***GSTABL7 ***
**GSTABL7 by Garry H.Gregory,P.E.**
**Original Version 1.0,January 1996;Current Version 2.005,Sept.2006 **
(All Rights Reserved-Unauthorized Use Prohibited)
*********************************************************************************
SLOPE STABILITY ANALYSIS SYSTEM
Modified Bishop,Simplified Janbu,or GLE Method of Slices.
(Includes Spencer &Morgenstern-Price Type Analysis)
Including Pier/Pile,Reinforcement,Soil Nail,Tieback,
Nonlinear Undrained Shear Strength,Curved Phi Envelope,
Anisotropic Soil,Fiber-Reinforced Soil,Boundary Loads,Water
Surfaces,pseudo-Static &Newmark Earthquake,and Applied Forces.
*********************************************************************************
Analysis Run Date:9/28/2010
Time of Run:11:08AM
Run By:John Smith,XYZ Company
Input Data Filename:U:\2010\10-036-00\Analyses\Slope Stability\3 s 1.2.in
Output Filename:U:\2010\10-036-00\Analyses\Slope Stability\3=s=1.2.0UT
Unit System:English
Plotted Output Filename:U:\2010\10-036-00\Ana1yses\Slope Stability\3_s_1.2.PLT
PROBLEM DESCRIPTION:Sect 3,Terrapaca Landslide,Fill
height at toe for approx.1.5 FS
BOUNDARY COORDINATES
25 Top Boundaries
46 Total Boundaries
Boundary X-Left
No.(ft)
1 0.00
2 26.00
3 82.00
4 87.00
5 96.50
6 131.00
7 140.00
8 151.00
9 162.00
10 177.00
11 190.00
12 197.00
13 221.00
14 226.00
15 242.00
16 249.00
17 261.00
18 263.00
19 265.00
20 272.00
21 368.00
22 405.00
23 451.00
24 496.00
25 562.00
26 96.50
27 99.00
28 101.00
29 105.00
30 110.00
31 122.00
32 110.00
33 126.00
34 146.00
35 176.00
36 196.00
37 236.00
38 251.00
39 256.00
40 0.00
41 46.00
Y-Left
(ft)
280.00
267.00
260.00
258.00
241.50
241.50
253.00
262.00
273.00
276.00
282.00
282.00
283.00
284.00
285.00
288.00
299.00
304.00
306.00
309.00
329.00
332.00
338.00
349.00
382.00
241.50
237.00
231.00
226.00
225.00
234.00
225.00
224.00
229.00
243.00
253.00
273.00
281.00
286.00
200.00
200.00
X-Right
(tt)
26.00
82.00
87.00
96.50
131.00
140.00
151.00
162.00
177.00
190.00
197.00
221.00
226.00
242.00
249.00
261.00
263.00
265.00
272.00
368.00
405.00
451.00
496.00
562.00
604.00
99.00
101.00
105.00
110.00
122.00
131.00
126.00
146.00
176.00
196.00
236.00
251.00
256.00
261.00
46.00
106.00
Y-Right
(tt)
267.00
260.00
258.00
241.50
241.50
253.00
262.00
273.00
276.00
282.00
282.00
283.00
284.00
285.00
288.00
299.00
304.00
306.00
309.00
329.00
332.00
338.00
349.00
382.00
396.00
237.00
231.00
226.00
225.00
234.00
241.50
224.00
229.00
243.00
253.00
273.00
281.00
286.00
299.00
200.00
203.00
Soil Type
Ba10\'1 Bnd
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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1
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1
U:\2010\10-036-00\Analyses\Slope Stability\3_s_1.2.0UT Page 2
0.27 %
1
1
1
1
1
Earthquake
Force Surcharge
Hor Ver Load
c=O
Random
Been
Height
(tt)
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Trial
203.00
206.00
209.00
216.00
253.00
23 slices
Tie Tie
Force Force
Norm Tan
146.00
175.00
182.00
188.00
196.00
Weight
42 106.00 203.00
43 146.00 203.00
44 175.00 206.00
45 182.00 209.00
46 188.00 216.00
Default Y-Origin =O.OO(ft)
Default X-Plus Value =O.OO(ft)
Default Y-Plus Value =O.OO(ft)
ISOTROPIC SOIL PARAMETERS
2 Type(s)of Soil
Soil Total Saturated Cohesion Friction Pore Pressure Piez.
Type Unit wt.Unit wt.Intercept Angle Pressure Constant Surface
No.(pcf)(pcf)(psf)(deg)Paramo (psf)No.
1 104.5 110.0 0.0 24.0 0.00 0.0 0
2 115.0 120.0 250.0 28.0 0.00 0.0 0
Searching Routine will Be Limited To An Area Defined By 1 Boundaries
Of Which The First 1 Boundaries Will Deflect Surfaces Upward
Boundary X-Left Y-Left X-Right Y-Right
No.(ft)(ft)(ft)(ft)
1 95.00 245.00 101.00 200.00
Janbus Empirical Coef is being used for the case of
A Critical Failure Surface Searching Method,Using A
Technique For Generating Sliding Block Surfaces,Has
Specified.
10 Trial Surfaces Have Been Generated.
9 Boxes Specified For Generation Of Central Block Base
Length Of Line Segments For Active And Passive Portions Of
Sliding Block Is 15.0
Box X-Left Y-Left X-Right Y-Right
No.(tt)(tt)(ft)(ft)
1 117.00 225.00 117.00 225.00
2 126.00 224.00 126.00 224.00
3 146.00 229.00 146.00 229.00
4 176.00 243.00 176.00 243.00
5 196.00 253.00 196.00 253.00
6 236.00 273.00 236.00 273.00
7 251.00 281.00 251.00 281.00
8 256.00 286.00 256.00 286.00
9 261.00 299.00 261.00 299.00
Following Are Displayed The Ten Most Critical Of The
Failure Surfaces Evaluated.They Are
Ordered -Most Critical First.
* *Safety Factors Are Calculated By The Simplified Janbu Method **
Total Number of Trial Surfaces Attempted 10
Number of Trial Surfaces With Valid FS =10
Statistical Data On All Valid FS Values:
FS Max =1.517 FS Min =1.507 FS Ave 1.512
Standard Deviation =0.004 Coefficient of Variation
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 97.179 241.500
2 105.231 234.300
3 117.000 225.000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281.000
10 256.000 286.000
11 261.000 299.000
Factor of Safety
***1.507 ***
Individual data on the
Water Water
Force Force
Top BotSliceWidth
U:\2010\10-036-00\Analyses\Slope Stabi1ity\3_s_1.2.0UT Page 3
No.(ft)(lbs) (lbs)
(lbs)(lbs)(lbs)(lbs)(lbs)(lbs)
1 8.1 3333.8 0.0 0.0 O.O.0.0 0.0
0.0
2 8.4 10098.6 0.0 0.0 O.O.0.0 0.0 0.0
3 3.4 5846.2 0.0 0.0 0:O.0.0 0.0 0.0
4 5.0 9258.6 0.0 0.0 O.O.0.0 0.0 0.0
5 4.0 7467.1 0.0 0.0 O.O.0.0 0.0
0.0
6 5.0 8926.6 0.0 0.0 O.O.0.0 0.0 0.0
7 9.0 19632.9 0.0 0.0 o.O.0.0 0.0 0.0
8 6.0 17057.2 0.0 0.0 o.o.0.0 0.0
0.0
9 5.0 15564.2 0.0 0.0 o.o.0.0 0.0 0.0
10 11.0 38623.2 0.0 0.0 O.O.0.0 0.0 0.0
11 14.0 50717.3 0.0 0.0 O.O.0.0 0.0 0.0
12 1.0 3411.9 0.0 0.0 O.O.0.0 0.0 0.0
13 13.0 43811.6 0.0 0.0 o.o.0.0 0.0 0.0
14 6.0 19123.5 0.0 0.0 O.O.0.0 0.0 0.0
15 1.0 3004.4 0.0 0.0 o.O.0.0 0.0 0.0
16 24.0 57684.0 0.0 0.0 O.O.0.0 0.0 0.0
17 5.0 8751.9 0.0 0.0 o.o.0.0 0.0 0.0
18 10.0 14434.1 0.0 0.0 O.o.0.0 0.0 0.0
19 6.0 6403.2 0.0 0.0 o.o.0.0 0.0 0.0
20 7.0 6169.0 0.0 0.0 o.O.0.0 0.0 0.0
21 2.0 1766.0 0.0 0.0 O.O.0.0 0.0 0.0
22 5.0 4506.6 0.0 0.0 O.O.0.0 0.0 0.0
23 5.0 2198.9 0.0 0.0 o.o.0.0 0.0 0.0
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 97.380 241.500
2 105.323 234.415
3 117.000 225.000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281.000
10 256.000 286.000
11 261.000 299.000
Factor of Safety
***1.507 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 97.426 241.500
2 105.689 234.852
3 117.000 225.000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281.000
10 256.000 286.000
11 261.000 299.000
Factor of Safety
***1.508 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 97.731 241.500
2 105.704 234.870
3 117.000 225.000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281.000
U:\2010\10-036-00\Analyses\Slope Stability\3_s_1.2.0UT Page 4
10 256.000 286.000
11 261.000 299.000
Factor of Safety
***1.508 ***
Failure Surface Specified By 11 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 98.268 241.500
2 106.127 235.334
3 117.000 225.000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281.000
10 256.000 286.000
11 261.000 299.000
Factor of Safety
***1.513 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 99.265 241.500
2 106.078 235.282
3 117.000 225.000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281.000
10 256.000 286.000
11 261.000 299.000
Factor of Safety
***1.514 ***
Failure Surface Specified By 11 Coordinate points
Point X-Surf Y-Surf
No.(ft)(ft)
1 99.324 241.500
2 106.035 235.236
3 117.000 225.000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281.000
10 256.000 286.000
11 261.000 299.000
Factor of Safety
***1.514 ***
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 99.567 241.500
2 106.100 235.304
3 117.000 225.000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281.000
10 256.000 286.000
11 261.000 299.000
Factor of Safety
***1.516 ***
U:\2010\10-036-00\Analyses\Slope Stability\3_s_1.2.0UT Page 5
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 99.133 241.500
2 106.349 235.562
3 117.000 225.000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281.000
10 256.000 286.000
11 261.000 299.000
Factor of Safety
***1.517 ~**
Failure Surface Specified By 11 Coordinate Points
Point X-Surf Y-Surf
No.(ft)(ft)
1 99.844 241.500
2 106.091 235.295
3 117.000 225.000
4 126.000 224.000
5 146.000 229.000
6 176.000 243.000
7 196.000 253.000
8 236.000 273.000
9 251.000 281.000
10 256.000 286.000
11 261.000 299.000
Factor of Safety
***1.517 ***
****END OF GSTABL7 OUTPUT ~**~
APPENDIX D
Geophysical Testing Results
GMU
GEOTECHNICAL,INC.
GEOPHYSICAL
CONSULTANTS.INC.NORCAL ------------------------
July 22,2010
Ms Lisa Bates
Engineering Geologist
GMU Geotechnical,Inc.
23241 Arroyo Vista
Rancho Santa Margarita,CA 92688
RE:BOREHOLE GEOPHYSICAL LOGGING REPORT
PALOS VERDE DRIVE
RANCHO PALOS VERDE,CALIFORNIA
NORCAL JOB No.10-703.028
Dear Ms Bates,
.This report presents the findings of a borehole geophysical/ogging survey performed by
NORCAL Geophysical Consultants for the subject project.The survey was part of a geo-
technical site characterization concerning a proposed drainage tunnel.The survey was
conducted by NORCAl Professional Geophysicist William J.Henrich on June 28,2010.
Logistical support was provided by Ms Wendy Drummond of GMU Geotechnical,Inc.
1.0 PURPOSE
The purpose of the geophysical logging was to quantitatively map orientations of the borehole
discontinuities such as bedding,fractures,geologic contacts etc.in two core borings.One
borehole was located along Palos Verde Drive;the other was located approximately 1/4 mile up
slope on a line parallel to the tunnel alignment.Additionally,we were tasked to measure
compressional (P-)and shear (8-)wave velocities as an aid in the determination of shear
strength of the underlying bedrock.
2.0 SCOPE OF WORK
Our scope of work consisted of geophysical logging in two boreholes labeled as CH-1 and
CH-2.The geophysical logging suite consisted of caliper,optical televiewer and Suspension P-
and 8-wave velocity tools.We were also tasked to analyze and interpret these field data and
present the results in a written report.
3.0 BOREHOLE CONDITIONS
Boreholes were drilled with HQ diamond core methods.The boreholes penetrated shales and
siltstone units of the Monterey Formation.This area of Palos Verde is prone to landsliding.It
was reported by the on site geologist that both boreholes intercepted "mUltiple"slide planes.
Both boreholes were drilled vertically.Borehole CH-1 had been completed to 150 below ground
321A BLo'DGETT STREET'COTATI.CA 94931 •lElEPHONE (707)79~-7)70 •FAX (707)796-7175
www.norcalgeophysical.com
GMU Geotechnical,Inc.
July 22,2010
Page 2
surface and allowed to equilibrate for three days prior to geophysical logging.The static water
level encountered during geophysical logging was 103 feet below ground surface.Borehole
CH"2 was dry down to 93 feet below ground surface.
4.0 BOREHOLE LOGGING METHODOLOGY
Geophysical logging consists of lowering various probes down the test bores and conducting
various physical property measurements of the geologic formations.Our geophysical logging
instruments (console,PC computer,downhole tools and DC powered four conductor winch)
consisted of a digital Robertson Geo/ogg/ng,Ltd.Model Micrologger2 System.The
following discusses the three logging methods used in this survey.
a.}Caliper
Borehole diameter was measured by a mechanical spring loaded 3-armed device and
calibrated to read diameters in units of inches.Caliper logs are used to indicate formation
washouts associated with eIther fracture zones or voids.The caliper log results are often used
to correct the response of other logs (see section OPTV data reduction).
b.}Image Logs
The presence and orientation of borehole discontinuities (fractures,bedding,geologic contacts,
etc.)can be measured with image logging tools consisting of either optical (OPTV)or acoustic
televiewer (BHTV).Our tool of choice for this survey was the OPTV televiewer.The OPTV tool
consists of a charged coupled device (CCO)video camera that can operate in either dry or
water"filled portions of the borehole providing that the water"fJlled portion is optically clear.A
light source composed of a circular series of LEDs located at the bottom of the tool illuminates
the borehole via a transparent viewing glass.Light reflected from the borehole wall is gathered
by a hyperbolic mirror inside the transparent viewing window and reflected vertically up to the
CGO camera.This results In a radial image strip that is referenc.ed to magnetic north by an on
board magnetic compass.The acquisition system then converts the analog data to oriented,
digitized radIal images with a maxImum resolution of 0.004 feet.Built"in computer software also
unwraps and composites the radial images into a real-time,two-dimensional plot of the
borehole wall on the computer screen.During acquisition the inclination (tilt from vertical)of the
borehole is recorded by an omni-directional three-axis accelerometer.The bearing (azimuth)of
the tool was measured by a three-axIs magnetometer.
c.)Suspension PB and SBwave Logger
We used an OYO-Robertson Model 3403 digital suspension logging system to measure
downhole compressional (P-)and shear (8-)velocities.The probe is equipped with a dipole
seismic energy source located near the base of the probe and a pair of geophones (detectors)
located towards the upper end of the probe.A schematic showing the probe configuration and
equipment attachments is shown in Appendix A.In this survey the distance from the energy
source to the first geophone was 7.02 feet (2,13 meters).The in-line distance between the
GMU Geotechnical,Inc.
July 22,2010
Page 3
geophone pair is 3.28 feet (1.0 meter).Each geophone contains one horizontal and one
vertical oriented element.The horizontal geophone elements preferentially record the shear
wave,the vertical geophone elements record first arriving P-wave energy.
Suspension seismic data is collected at discrete depths in a fluid-filled boring.At each
measurement depth,the energy source is activated via commands from the surface control
console.This activation causes a metal solenoid to strike a plate (anvil)mounted inside the
probe housing.This energy transmits through the fluid to the borehole wall which produces a
seismic wave ("flexure")In the adjacent formation.As this wave propagates radially In the
formation away from the source,a seismic interaction between the seismic wave and the
borehole wall creates tube waves together with a refracted compressional P-wave that travels
up the borehole to the two recording geophones.P-wave arrival times are identified as the first
break on the vertical geophone seismic records.Tube wave arrivals are later arriving seismic
events and are recorded on the horizontal geophones.The identification of the tube wave
arrival times are facilitated by recording seismic records from two opposite directions
(horizontally left and right)of solenoid impacts.By superimposing these two seismic records,
the onset of the tube wave/S-wave arrival time is usually Identified as a higher amplitude and
phase reversal event.The velocity of the tube wave is very close (90 percent)to that of the S-
wave.Hence,we report tube wave velocities as seismic S-wave velocities.
When assembled,the suspension logging tool measures approximately 19 feet in length.The
measuring point of the tool is taken at the center of the pair of geophones.This measuring
point is approximately 11 feet from the bottom of the probe.Therefore,the maximum depth of
our survey will always be reported 11 feet from the total depth of the borehole assuming the
borehole is free of obstructions.
5.0 DATAACQUISITION
a.)Caliper
Prior to the survey,the caliper log response was calibrated to read in units of inches.The
caliper logs were acquired in the up going direction at speeds ranging from 10 t012-feet-per-
minute.The digital data sampling rate was every 0.05 feet.
b.)OPTV logs
The OPTV logging was recorded initially in an downhole direction at a logging speed of 4 feet-
per-minute.After a review of this initial log,lighting parameters were adjusted and a second up
going log was recorded.The purpose of the second log was to improve image quality and to
create a repeat log to demonstrate the stability of the magnetic north reference measured by
the instrumentation.The north compass direction was checked with a Brunton Compass prior
to geophysical logging.
GMU Geotechnical,Inc.
July 22,2010
Page 4
c.)SuspensIon logging
We measured seismic suspension velocities ranging from one to two-foot intervals beginning
approximately 11 feet from the bottom of each borehole.At each measurement station,we
cycled the energy source to fire 3 times in succession into each geophone element.This
cycling stacks seIsmic records to achieve better signal to noise ratios.We also recorded S-
wave data using a 2.4 KHz low pass filter.This filtering reduces high frequency Interference
from the onset of earlier arriving P-wave modes.
Only borehole CH-,1 under ambient conditions,had a standing water column beginning at 103
feet below ground surface (bgs).The survey target interval in this borehole ranged from 90 to
70 feet bgs.Borehole CH-2 was dry down to total depth or approximately 93 feet bgs.The
operation of the suspension logging requires a fluid-filled borehole column.Therefore,water
was gravity fed into the boreholes from a water truck to raise the water level in each of the
boreholes.Despite the constant influx of imported water,the water level in CH-1 did not rise
above 103 feet.As a result,Suspension measurements were regulated to depths below 103
feet bgs.
6.0 DATA REDUCTION
a.)OPTV Image Logs
We used the computer program WELLCAD (Version 4.0,ALT,Luxemburg)to produce merged
borehole optical televiewer images and caliper log plots and to calculate orientations of
interpreted discontinuities (e.g.bedding and fractures)from the televiewer imagery.
Corrections for the magnetic declination in the survey area required adding 13.5 degrees to the
magnetic compass bearings in order to orient the borehole images to true north (NOAA,2004,
Magnetic Declination for The U.S.).Since borehole diameter Is a major input parameter in
determining dip magnitude,we input caliper log data into the program calculation of dips.
Discontinuities analysis was performed Interact/vely on sections of the unwrapped OPTV image
as viewed on a computer monitor.An interpretable discontinuity on a two-dimensional
unwrapped borehole televiewer log appears as a recognizable sinusoidal shaped trace that
usually extends across the width of the borehole image.The sinusoidal shape is a visual
manifestation of a planar discontinuity intercepting a three-dimensional cylindrical borehole.
Planar discontinuities can be geologic features that include discrete fractures,beddIng planes
or other such planar contacts.Identified discontinuity traces on the image logs were fitted with
a bendable sinusoid that best overlies the trend of the trace.WELLCAD then calculates a
plane that represents the orientation of the discontinuity in terms of dip direction and dip
magnitude based on the sinusotd overlay.The process is repeated for every significant
discontinuity until the entire open section of the borehole is interpreted.At this stage,apparent
dip direction and dip magnitude of the discontinuities are converted to true geographic dip
direction and magnitude by factoring a correction for borehole deviation (azimuth and tilt).
Most discontinuities were observed to be continuous (360 degrees)across the "unwrapped"
image plot,however,in complex fracture zones or in occurrences of high angle discontinuities
GMU Geotechnical,Inc.
July 22,2010
PageS
(greater than 60 degree dip)the discontinuity trace is shown either in segments or in one partial
irregular segment (much less than 360 degrees across).In either case only portions of the
discontinuity are presented.Nonetheless,a best fit sinusoid was superimposed over these
incomplete traces.These sinusoids and resulting calculations represent an approximate dip
direction and magnitude for these noncontinuous features.
b.}Suspension Logs
Seismic P-and S-wave velocities were calculated with the interpretation computer software
Glog SUS,Version 1.12 published by Oyo Corporation (2000).A typical interpreted seismic
record is presented in Appendix B.This record shows six geophone traces.Traces H1 and H2
are horizontal geophone elements which are preferentially aligned to record S-waves.H1 is the
geophone nearest to the source,H2 is the farthest from the source.V1 and V2 are the vertical
geophone elements which are preferentially aligned to record P-waves.The horizontal
geophone elements (H1 and H2)show a total of four S-wave arrival times;two arrival times
identified at each geophone are referenced as "up"and "down"breaks.The"up"and "down~'
breaks are the result of two separate and oppositely directed (180 degrees)solenoid impacts by
the energy source.As the example record illustrates,these opposing impacts produce
amplitude phase reversals which identifies the on set of the S-wave energy.All seismic records
were analyzed for P-and S-arrival times in this manner.Seismic velocities are calculated by
dividing the geophone spacing interval (1 meter)by the interpreted interval travel times in
microseconds to yield seismic velocities in meters per second.Two S-wave velocities are
calculated at each depth measurement station.We averaged the results of two S-wave interval
velocities and presented a single S-wave value at each measurement station.
The interval velocity calculation method is the preferred reduction technique.However,we
have noticed that depending on borehole conditions the waveform record can show more than
one S-wave phase reversal.To help eliminate this equivalence we calculate direct velocities
from the arrival times.That is,we divide the travel distance from the source to the detectors by
the arrival times (see graphic regarding the probe geometry).These direct arrival time
velocities are compared to the interval velocities.When we see velocity discrepancies we
reinterpret arrival times in the Glog~SUS program so that the interval velocities approximately
correspond to the direct velocity calculation.It should be noted that the direct velocity
calculation though useful as a velocity constraint can not substitute for an interval velocity
because the delay times due to instrumental and probe standoff are not known precisely.
7.0 PRE.SEI'JTATION AND RESULTS .
Summary plots of all log data and interpretative illustrations can be found in Appendix C at a
vertical scale of one inch equals two feet.The plots present the caliper log trace (green)
superimposed on the initial Down going OPTV image plot in the far left track.Additional plots
left to right are as follows:Up going OPTV log with sinusoid overlays,Tadpole,Suspension P-
and S~wave Velocities (bar graph)and borehole deviation (see Azimuth and Tilt).
The tadpole symbol depicts discontinUity dip magnitude by its position on the depth versus
degrees (0°to 90°)plot where 0°represents horizontal and 90°represents vertical.Dip
GMU Geotechnical,Inc.
July 22,2010
Page 6
direction is indicated by the position of the symbols tail as if it were positioned on a
360°compass face where north is the tail pointing vertically up the page,east is the tail pointing
90°to the right of vertical,south is pointing vertically down the page and west is 90°from
vertical to the left of the page.The color of the sinusoid and tadpole have classification
meaning.Black refers to fractures;green to bedding and blue to contacts.
Due either to the complexity or incompleteness of discontinuity traces in some fracture
Intervals,not all possible fractures were subject to tabulation and interpretation.This is to say
that the number of interpreted fractures in our analysis will not always correlate to the fracture
frequency as determined from rock core analysis for reasons of significance,silica
mineralization within fractures and undetected mechanical breakage of core samples at the
surface.
a.)Discontinuity analysis
Interpreted discontinuities were classified as bedding,fractures and contacts.We identified
discontinuities as bedding because these features appeared closely spaced,had very thin
traces with no open aperture and followed a near constant dip direction and angle across
limited depth intervals.A contact classification was given to a discontinuity that visually
appeared to separate distinctly diff~rent rock units.A discontinuity was classified as a fracture
because we observed evidence of an open or partially open aperture.This open or partially
aperture characteristic can be inferred by caliper log breakouts or the appearance of an open
aperture of the dIscontinuity on an optical televiewer.A complete listing of interpreted
discontinuity depth,dip direction (Azimuth),dip angle from horizontal,WELLCAD code and
classification ("class")has been summarized in a series of tables.These discontinuity tables
are presented in Appendix D.
b.}Suspension PN and 8m wave velocities .
Suspension S~and P-wave Interval velocities presented in bar graph form on the Log Summary
Plots (see Appendix C)are presented as numerical tables in Appendix E.In general,Borehole
CH-1 ranged from 1100 to 2600 feet per second (fps).S-wave velocities in Borehole CH-2
ranged from 760 to 1649 fps.The lower S-wave velocities in CH-2 versus CH-1 are probably
the result of the rock mass in the former having been subjected to greater amounts of
weathering and possibly greater slide movement.Landslide movement mechanically deforms
the rock which reduces shear strength and S-wave velocity.P-wave velocities were measured
below 5000 fps in Boreholes CH-1 above 120 feet and all of CH-2.It is our experience that in
unsaturated bedrock where we are adding water to the borehole to create an artificially high
fluid column,the P-wave arrivals on the waveform records are not conclusive because the
signal level is relatively weak compared to the S-wave.We therefore state that our P-wave
results are at best estimates.
STANDARD CARE AND WARRANTY
The scope of NORCAL's services for this project consisted of using the downhole geophysical
techniques to measure the orientation of bedrock discontinuities and measure Suspension
GMU Geotechnical,Inc.
JUly 22,2010
Page 7
seismic velocities.The accuracy of our findings is subject to specific site conditions and
limitations inherent to the techniques used.We performed our services in a manner consistent
with the standard of care ordinarily exercised by members of the profession currently employing
sImilar methods.No warranty,with respect to the performance of services or products
delivered under this agreement,expressed or implied,is made by NORCAL.
Thank you for the opportunity to participate in this investigation.Should you have questions
please call me at your earliest convenience.
Yours very truly,
~OP~2:t·
William J.Henrich,CEG,GP rJ'"-:
Professional Geophysicist-893
Enclosures
W~'H/KGB/tt
ENCLOSURES
APPENDIX A:Suspension Logging Probe and System Schematic
APPENDIX B:Example Survey Suspension Waveform Records with Interpreted Arrival Times
APPENDIX C:Summary Log Plots,CH-1 and CH-2
APPENDIX 0:Discontinuity Tables,CH-1 and CH-2
APPENDIX E:P-and S-wave Suspension Velocity Table,CH-1 and CH-2
APPENDIX A
Suspension Logging Probe and System Schematic
SUSPENSION LOGGING PROBE
AND EQUIPMENT CONFIGURATION
F
L
E
X
U
R
E
W
A
V
E
Cable Haad ~~~~===i'J>U
to COMPUTER
CONTROLLED
1-=="=CONSQLE .
t}
DE1pth {eferenc6.~1_~6*4 ft
at mid-point .----...;..."T'
9f two {eceivers
1.64ft
______Depth reference
rX-R2 (+~.5 ft)
7.04 it 12.1 it
~===~=Depth reference
Tx-R1 (+5 ..15 ft)
3.28 it flexible
isolation tl.!ba
Combined Sh and P,wave
wave source (Tx)~='----='-=+
3.44 ft·
Weight
Tip ~=~--=__===.L.:="""";.".L.
Over!'lil Length ~19.5 ft.
Constructed with 1 meter (3.28 It)isolation tube
Drilwing no~to ~cale
APPENDIX B
Example Suspension Waveform Record with Interpreted Arrival Times
Example interpreted \j\faveform Record via
GLOG-SUS Program CH-2
'<:-,,-'7,....___,_·.-......·:':r':~·'"'.'.~!.(l·
~(us)?i
I
f,
Append "~1
ii SIr =10000 sit =10040
",!
1
2j
69.0 £002_037.or9 I Delete 11 Sin =6980 sin =6960
70.0 C002_036.~~·
--I
~j
~t
71.0 f002_Q35.or9 ..:~j pr =2580 pn =4620'I72.0 £002_034.019 N
"73.0 C002 033.~~-I \'
:\
Example Waveform Record CH-1
124.21£001 013.01 ~I 409:1770 v
sin =
pn =
2840
1240
APPENDIX C
Summary Log Plots,CH-1 and CH-2
.-~.-
I •
OPT'l,CALIPER,COMPANY:GMU Geotechnical
I
NORCAl =SUSPENSION LOG.,WELL 10,CH-1
-atll'!:ii I SUMMARY PLOT ,616b~~:r~§~SN~~~~~
-.::u.__w ClllClnftml .U~.!__L..._
DATE.JUi~E 28.201~1
BorehOle Dia.4 In
JOB NO 10-7D3.028 I
STATE-CA
NOTES:Water added to borehole during Suspension logging.Unable10
maintain water level above 103 feet.Therefore,velocity data
acquisition restricted to lower borehole depths.
oEG 400
.,.,
.,
: I
TILT
~i
: j
:'
: i
i I
;,
i·············~...
8000 0 oEG
AZIMlfTH
8000 0Ips
Ips
S-wave Interval Velocity
P-wave Interval Velocity
90 0
DIPS
O'270180'
SINUSOliJS
90'
f---
O'
---OPTV BOREHOLE VIE\>\'(U?GOIi"!G\
D·270"180·
Borehole Diameter
90'
OPTV BOREHOLE VIE'/lf (DOWNGOING)Depth
1ft24ft 10,
,~)
I I
-_.-
nnU+-l-++---~----i---:=IJJlf-
Page 3
in-
:i
:!
i ~!
!:!
I ~i
i ~i
-1-:1
;1611
1624
2431
2660
2656
1'940
1993
-1513
1269
_-1373
1129
1101
4
DEG 400
TILT
DEG
AZIMlTTH
~.
8000 0
8000 0
Ips
8-wave Interval Velocity
Ips
P-wave Interval Velocity
~-H-HH-IH-H-t---+------;---t-
::
~iH-IH-H-H-t++--~--~--_+_----,_;_---
I ::
;;f-----------------il
O'INCH 10 90'180'270'
Depth f--J__O_P_TV_B_O_R_EH_O_LE_V_'_O'N_.:..<O_O_WN_G_O_IN_G...:'__I f-!O_PTV_B_O_R_E_H_O_L_E_Vl_O'N_..:.(U_P_G_O_I_NG_)'--_"'1 f--I__D_IP_S__-jl
lfl:24fl O·90'180'270'O·O·90'180'270'O·0 90 0
Page 5
•
I OPTV,CALIPER,- ----I~Z~MPANY:GM~-Geotechnical
NORCAL -I SUSPENSION LOG ';;'IEELLOL ..IO:CpAHL-20S VERO"
,
~..::._~.I SUMM.ARY PLOT''-
'L.~"~-~~~-~--~'--"'==.'~-::J'~c~~Nll'_:_L_OSANGELES
DATE'JU~JE 28 2010
Borehole Di2...;.in
JOB NO 10-703028
STAT=C,te,
~OTES:Borehole dry to total depth.Added water to borehole during
Suspension logging survey
TILT
OEG 400
8000 0 OEG 4
AZIMUTH
,·i
If!
i !;~~--!-C--
P-wave_lntel'\1al Velocity
Ips
S·wave_lnterval Velocity
f----------------!
8000 0
i----'---~---+_---I+--!
i
H----~--~---~-~+_S:i .-.-
90 0
ii I 'H-+----+---+---~---H-~~If-!+-
:i
DIPS
C'27:1'180'
SINUSOIDS
90'
BOREHOLE VIEW RUi\I-2 (UP-GOIt-.lG)
0'0'
BOREHOLE VI8N (DOVVN GOING)
f-----
90°1800 270 0
Borehole Diamete c
i·ea •••••••••••••••••••••••••••••••••••••••••••••;
I Oepth1~:24~I D'
~:,I
~!
l !,
"!
~:
I .
5---C---+-",,--+-!'
i645-----i---+-----+-~-,-
t :
--'-~-rH$
1234
1160 :5ll--+---+--+--'-----+---i
1042
989 •904---j--f-----io------+-+----.J,
1085
901
1076
794
820
748
~H+~H_t~~8~6B=~364:5----+----+----+--+-+---1
-tttH-+++t.£:1:O:105~2=J :64,5----+-----+-+--'---+----1
-tttH-++++.~8~94=:=}'l-27'--+-----{--+--,--+-1
-~t-H_H-j+I.~67~B==:1:904---f;--L.--jl;-~-+!---'-----1
i
i;
AZIMUTH
i)
S-waveJnterval VelocTty
------=-----'------!'_.
8000 0 DEG 400
TILT
SINUSOIOSBoreholeDiameter
j ••••••••••••••••••••••••••••••••••••••••••••••••:
o INCH 10 0"90"180"270 0 0'fps
I
Depth ~OREHOLE VlEVoJ (DOWN GOING)BOREHOLE VIEW RU)\1-2 (UP-GOING)DIPS P·wave_lntervai Velocity
11t24ft O'90'180'2-70-·"':"'---0~'0;---9-0'180'270'O·0 90 I0 fps 8000 ··ti......·iiE~···..··~______..':.'..'C.._----"-_~_-----'''''--''-~__~:....::...-~~....::.J
Page 3
APPENDIX D
Discontinuity Tables,CH-1 and CH-2
Boring CH-1 DISCONTINUITY TABLE
PALOS VERDE DRIVE
RANCHO PALOS VERDE,CA
Depth Azimuth Dip Class Comment
ft.(bgs)deQ del:)code-color class
28.95 0.98 39.88 106-green bedding
35.16 7.77 17.52 106-green bedding
43.11 269.76 59.69 1DO-black fracture
43.93 90.99 56.29 1DO-black fracture
53.9 53.21 23.69 106-green bedding
54.2 53.5 27.13 106-green bedding
54.78 6.39 27.52 106-green bedding
55.37 27.73 22.68 107-blue contact
65.18 277.32 28.41 100-black fracture
66.25 129.22 32.51 1DO-black fracture
66.49 92.97 27.95 1DO-black fracture
73.01 357.79 25.36 106-green bedding
92.31 196.12 25.15 106-green bedding
93.04 193.68 34.97 106-green bedding
93.24 186.26 34.49 106-green bedding
93.58 193.2 29.97 106-green bedding
93.83 173.41 26.52 106-green bedding
94.14 179.9 31.3 106-green bedding
94.68 178.97 24.96 107-blue contact
96.97 186.73 46.42 100-black fracture
99.66 45.47 51.54 106-green bedding
100.49 31.83 43.73 106-green bedding
100.78 29.59 41.01 106-green bedding
101.01 34.7 41.97 106-green bedding
108.75 238.01 51.33 106-green bedding
109.15 231.68 56.81 106-green bedding
119.65 176.06 17.81 106-green bedding
122.05 184.64 15.92 106-green bedding
122.88 214.63 20.22 106-green bedding
123.7 207.81 13.87 106-green bedding
123.82 212.18 11.44 106-green bedding
124.09 195.59 13.94 106-green bedding
124.48 227.53 17.52 106-green bedding
125.17 235.91 16.59 106-green bedding
125.5 242.22 12.98 106-green bedding
125.97 236.18 13.99 106-green bedding
126.41 224.03 14.03 106-green .bedding
127.14 190.57 19.71 106-green bedding
140.88 228.5 16.25 106-green bedding
142.19 195.53 17.86 10B-green bedding
142.31 207.04 26.8 106-green bedding
142.47 210.37 22.23 106-green bedding
142.95 231.66 24.55 106-green bedding
143.2 215.7 19.57 106-green bedding
143.42 243.62 16.71 10B-green bedding
144.28 221 22.87 106-green bedding
Boring CH-2 DISCONTINUITY TABLE
PALOS VERDE DRIVE
RANCHO PALOS VERDE,CA
Depth Azimuth Dip Class Comment
ft deg deg code-color class
39.19 350.49 44.46 106-green bedding
.39.99 1.85 35.24 106-green bedding
44.06 354.44 31.73 106-green bedding
44.31 352.47 38.01 106-green bedding
45.11 19.26 25.89 106-green bedding
48.45 59.42 37.58 106-green bedding
50.73 59.07 42.67 106-green bedding
51.96 182.76 21.15 106-green bedding
59.97 339.86 14.33 106-green bedding
65.98 202.32 8.72 100-black fracture
68.83 19.43 19.19 106-green bedding
69.13 6.09 19.15 106-green bedding
69.49 27.41 22.77 106-green bedding
70.28 188.29 43.75 106-green bedding
70.67 218.37 43.93 106-green bedding
70.94 214.39 48.48 106-green bedding
73.23 194.7 1.08 100-black fracture
75.44 138.07 17.61 107-contacf contact
78.34 200.41 19.97 107-contact contact
81.97 109.96 28.99 107-contact contact
APPENDIX E
P-and S-wave Suspension Velocity Table,CH~1 and CH-2
SUSPENSION LOGGING VELOCITY TABLES
BOREHOLE CH-1
INTERVAL VELOCITIES
I Depth S-wave Velocity P-wave Velocity I
feet fps fps
108 1094 3458
110 1101 3471
112 1129 3471
114 1289 3527
116 1485 4403
117 1461 4929
118 1624 5249
120 1513 5167
122 1611 5515
124 1373 5739
126 1941 5755
126 1940 5611
128 1993 5755
130 2431 5755
132 2660 5828
134 2658 5860
135 2615 5860
BOREHOLE CH-2
INTERVAL VELOCITIES
Depth S-wave Velocitv P-wave Velocitv
feet fps fps
47 914 3816
48 748 3904
49 914 3904
50 763 3904
51 845 3816
52 901 3816
,53 989 3904
54 1052 3645
55 868 3645
56 794 3904
57 878 3904
58 820 3816
59 894 3727
60 1042 3645
61 1052 3645
62 1101 3816
63 1373 3727
64 1216 3816
65 1234 3645
66 1160 3850
67 1085 3727
68 1076 3800
69 1189 3904
70 1273 4101
71 1447 4101
72 1403 4003
73 1540 4318
74 1649 4318
75 1576 4318
76 1350 4318