2013-01-10_REVISION - M1982131

• Permit No: M1982131
• IBM Index Class Name: REVISION
• Doc Date: 1/10/2013
• Doc Name: REVIEW OF SLOPE STABILITY ANALYSIS
• From: DRMS
• To: OPERATOR
• Type & Sequence: TR1
• Email Name: PSH
• Media Type: D
• Archive: No

Galena 5.02 Analysis Results Licensee: Office of Surface Mining
Project: Bucklen Pit
File: D: \Documents and Settings \PSH \My Documents \My Projects \aWeld Co \Buc... \Bucklen Mined Slope Applegate soil properties.gmf
Processed: 11 Jan 2013 10:39:22
DATA: Analysis 1 - Mined Slope - Applegate Soil Properties
Material Properties (4 materials)
Material: 1 (Mohr - Coulomb Isotropic) - Overburden Clay
Cohesion Phi UnitWeight Ru
274.00 64.0 112.00 1.10
Material: 2 (Mohr - Coulomb Isotropic) - Sand and Gravel
Cohesion Phi UnitWeight Ru
55.00 40.0 121.00 1.10
Material: 3 (Mohr - Coulomb Isotropic) - Weathered Bedrock
Cohesion Phi UnitWeight Ru
274.00 64.0 112.00 1.10
Material: 4 (Mohr - Coulomb Isotropic) - Claystone Bedrock
Cohesion Phi UnitWeight Ru
660.00 64.0 112.00 1.10
Water Properties
Unit weight of water: 62.400 Unit weight of water /medium above ground: 62.400
Material Profiles (4 profiles)
Profile: 1 (3 points) Material beneath: 1 - Overburden Clay
0.00 47.00 175.00 50.00 400.00 54.50
Profile: 2 (3 points) Material beneath: 2 - Sand and Gravel
0.00 45.00 173.00 48.00 400.00 52.50
Profile: 3 (2 points) Material beneath: 3 - Weathered Bedrock
0.00 12.50 400.00 12.50
Profile: 4 (2 points) Material beneath: 4 - Claystone Bedrock
0.00 10.00 400.00 10.00
Slope Surface (4 points)
0.00 10.00 135.00 10.00 175.00 50.00 400.00 54.50
Phreatic Surface (4 points)
0.00 10.00 135.00 10.00 168.00 26.00 400.00 52.50
Failure Surface
Circular surface defined by: XL,XR,R
Intersects: XL: 137.32 YL: 12.32 XR: 195.00 YR: 50.40
Centre: XC: 120.16 YC: 101.04 Radius: R: 90.36
Distributed Loads (1 load)
Load X -Left Pressure X -Right Pressure
1 195.00 450.0 230.00 450.0
RESULTS: Analysis 1 - Mined Slope - Applegate Soil Properties
Bishop Simplified Method of Analysis - Circular Failure Surface
Factor of Safety: 1.39
Negative normal stresses exist on the base of one or more slices - examine slice data and consult the Galena Users' Guide
Slice Geometry and Properties (43 slices)
Slice X -S Base PoreWater Normal Test
X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor
1 137.32 0.28 12.1 0.84 0.86 3 274.00 64.0 32.63 0.00 -2.56 0.78
2 138.16 1.70 12.1 1.41 1.44 2 55.00 40.0 205.72 0.00 122.01 0.91
3 139.56 3.25 12.1 1.41 1.44 2 55.00 40.0 393.48 0.00 240.23 0.91
4 140.97 2.98 14.5 0.93 0.96 2 55.00 40.0 360.70 0.00 327.08 0.89
5 141.90 5.44 14.5 1.34 1.39 2 55.00 40.0 658.05 13.14 416.49 0.89
6 143.24 6.77 14.5 1.34 1.39 2 55.00 40.0 819.71 39.42 523.23 0.89
7 144.58 11.01 16.9 1.79 1.87 2 55.00 40.0 1332.61 89.64 628.09 0.88
8 146.37 13.24 16.9 1.79 1.87 2 55.00 40.0 1601.55 127.43 758.53 0.88
9 148.15 15.17 19.2 1.76 1.87 2 55.00 40.0 1835.16 160.29 863.93 0.87
10 149.92 17.19 19.2 1.76 1.87 2 55.00 40.0 2079.82 188.20 981.24 0.87
11 151.68 18.83 21.6 1.74 1.87 2 55.00 40.0 2278.58 211.14 1069.17 0.87
12 153.41 20.65 21.6 1.74 1.87 2 55.00 40.0 2498.67 229.11 1173.41 0.87
13 155.15 22.00 24.0 1.71 1.87 2 55.00 40.0 2661.57 242.11 1244.29 0.86
14 156.85 23.61 24.0 1.71 1.87 2 55.00 40.0 2857.05 250.12 1335.59 0.86
15 158.56 24.66 26.3 1.67 1.87 2 55.00 40.0 2983.55 253.15 1389.78 0.86
16 160.23 26.07 26.3 1.67 1.87 2 55.00 40.0 3154.52 251.19 1468.25 0.86
17 161.91 26.81 28.7 1.64 1.87 2 55.00 40.0 3244.33 244.23 1506.11 0.86