La Grange Slope Stability for Channel 1
4
SRKN'gineering O.B1 Slope Stability - La Grange Access Dam to Sluice 1 of 1 1 [GeoStructural Analysis - Slope Stability | version 5.16.13.0 | Copyright © 2013 Fine spol. s r.o. All Rights Reserved | www.finesoftware.eu] Slope stability analysis Input data Project Task : Part : Description : Author : Date : Slope Stability - La Grange Access Dam to Sluice 1 of 1 West Bank Demerara Sluice Project - La Grange O.B1 1/26/2015 Settings USA - Safety factor Stability analysis Verification methodology : Safety factors (ASD) Safety factors Permanent design situation Safety factor : SF s = 1.50 [–] Interface No. Interface location Coordinates of interface points [m] x z x z x z 1 2 3 4 0.00 5.40 5.40 3.90 0.00 13.80 15.00 15.00 14.00 13.00 3.60 6.90 11.75 11.75 11.75 13.80 16.00 15.00 14.00 13.00 3.90 11.75 14.00 16.00
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Slope Stability Calculations
Transcript of La Grange Slope Stability for Channel 1
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SRKN'gineeringO.B1
Slope Stability - La Grange Access Dam to Sluice1 of 1
1[GeoStructural Analysis - Slope Stability | version 5.16.13.0 | Copyright 2013 Fine spol. s r.o. All Rights Reserved | www.finesoftware.eu]
Slope stability analysis
Input dataProjectTask :Part :Description :Author :Date :
Slope Stability - La Grange Access Dam to Sluice1 of 1West Bank Demerara Sluice Project - La GrangeO.B11/26/2015
SettingsUSA - Safety factorStability analysisVerification methodology : Safety factors (ASD)
Safety factorsPermanent design situation
Safety factor : SFs = 1.50 []
Interface
No. Interface locationCoordinates of interface points [m]
x z x z x z
1
2
3
4
0.005.40
5.40
3.90
0.00
13.8015.00
15.00
14.00
13.00
3.606.90
11.75
11.75
11.75
13.8016.00
15.00
14.00
13.00
3.9011.75
14.0016.00
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SRKN'gineeringO.B1
Slope Stability - La Grange Access Dam to Sluice1 of 1
2[GeoStructural Analysis - Slope Stability | version 5.16.13.0 | Copyright 2013 Fine spol. s r.o. All Rights Reserved | www.finesoftware.eu]
Soil parameters - effective stress state
No. Name Patternjef[]
cef[kPa]
g
[kN/m3]
1
2
3
medium to soft brown silty clay
very soft grey silty clay with pockets of silt
very soft grey silty clay with pockets of silt 1
1.00
1.00
17.00
1.06
5.48
41.67
15.45
16.87
20.71
Soil parameters - uplift
No. Name Patterngsat
[kN/m3]
gs[kN/m3]
n
[]
1
2
3
medium to soft brown silty clay
very soft grey silty clay with pockets of silt
very soft grey silty clay with pockets of silt 1
15.45
16.87
20.71
Soil parameters
medium to soft brown silty clayUnit weight :Stress-state :Angle of internal friction :Cohesion of soil :Saturated unit weight :
geffectivejefcefgsat
=
===
15.45
1.001.06
15.45
kN/m3
kPakN/m3
very soft grey silty clay with pockets of siltUnit weight :Stress-state :Angle of internal friction :Cohesion of soil :Saturated unit weight :
geffectivejefcefgsat
=
===
16.87
1.005.48
16.87
kN/m3
kPakN/m3
very soft grey silty clay with pockets of silt 1Unit weight :Stress-state :Angle of internal friction :Cohesion of soil :Saturated unit weight :
geffectivejefcefgsat
=
===
20.71
17.0041.6720.71
kN/m3
kPakN/m3
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SRKN'gineeringO.B1
Slope Stability - La Grange Access Dam to Sluice1 of 1
3[GeoStructural Analysis - Slope Stability | version 5.16.13.0 | Copyright 2013 Fine spol. s r.o. All Rights Reserved | www.finesoftware.eu]
Assigning and surfaces
No. Surface positionCoordinates of surface points [m]x z x z
Assignedsoil
1
2
3
4
11.756.90
11.755.40
11.753.900.00
0.0011.75
15.0016.00
14.0015.00
13.0014.0013.80
13.0012.00
11.755.40
11.753.90
11.753.600.00
0.0011.75
16.0015.00
15.0014.00
14.0013.8013.00
12.0013.00
medium to soft brown siltyclay
very soft grey silty clay withpockets of silt
very soft grey silty clay withpockets of silt 1
very soft grey silty clay withpockets of silt 1
Surcharge
No. Type Type of actionLocationz [m]
Originx [m]
Lengthl [m]
Widthb [m]
Slope
a []
Magnitudeq, q1, f, F q2 unit
1 strip permanent on terrain x = 7.20 l = 3.00 0.00 10.42 kN/m2
SurchargesNo. Name1 Max Excavator Loading
WaterWater type : No waterTensile crackTensile crack not inputted.EarthquakeEarthquake not included.Settings of the stage of constructionDesign situation : permanent
Results (Stage of construction 1)Analysis 1
Circular slip surface
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SRKN'gineeringO.B1
Slope Stability - La Grange Access Dam to Sluice1 of 1
4[GeoStructural Analysis - Slope Stability | version 5.16.13.0 | Copyright 2013 Fine spol. s r.o. All Rights Reserved | www.finesoftware.eu]
Slip surface parameters
Center :
Radius :
x =
z =R =
3.51
20.136.52
[m]
[m][m]
Angles :a1 =
a2 =
-13.87
50.70
[]
[]
Analysis of the slip surface without optimization.
Slope stability verification (all methods)Bishop :Fellenius / Petterson :Spencer :Janbu :Morgenstern-Price :Shahunyants :
FS = 4.71 > 1.50FS = 4.70 > 1.50FS = 4.78 > 1.50FS = 4.82 > 1.50FS = 4.82 > 1.50FS = 3.97 > 1.50
ACCEPTABLEACCEPTABLEACCEPTABLEACCEPTABLEACCEPTABLEACCEPTABLE
