2011-06-28_PERMIT FILE - M2011001

• Permit No: M2011001
• IBM Index Class Name: PERMIT FILE
• Doc Date: 6/28/2011
• Doc Name: Third Adequacy Review
• From: DRMS
• To: Lafarge West, Inc.
• Email Name: PSH
• Email Name: AJW
• Media Type: D
• Archive: No

Galena 5.02 Analysis Results Licensee: Office of Surface Mining
Project: Lafarge - Iverson Mine
File: D: \Documents and Settings \PSH \My Documents \My Projects \ZZ Stability Anal... \Communication Tower MW03 Surcharge.gmf
Processed: 27 Jun 2011 14:12:31
DATA: Analysis 1 - M- 2011 -001 Stability Analysis
Material Properties (4 materials)
Material: 1 (Mohr - Coulomb Isotropic) Overburden
Cohesion Phi UnitWeight Ru
150.00 28.0 114.00 1.10
Material: 2 (Mohr - Coulomb Isotropic) - Sand and Gravel
Cohesion Phi UnitWeight Ru
0.00 37.0 130.00 1.10
Material: 3 (Mohr - Coulomb Isotropic) - Residual Bedrock
Cohesion Phi UnitWeight Ru
0.00 14.0' 124.00 0.00
Material: 4 (Mohr - Coulomb Isotropic) - Claystone Bedrock
Cohesion Phi UnitWeight Ru
500.00 22.0 124.00 0.00
Water Properties
Unit weight of water: 62.430 Unit weight of water /medium above ground: 62.430
Material Profiles (4 profiles)
Profile: 1 (2 points) Material beneath: 1 - Overburden
-50.00 4669.50 100.00 4669.50
Profile: 2 (2 points) Material beneath: 2 - Sand and Gravel
-50.00 4664.50 100.00 4664.50
Profile: 3 (2 points) Material beneath: 3 - Residual Bedrock
-50.00 4650.50 100.00 4650.50
Profile: 4 (2 points) Material beneath: 4 - Claystone Bedrock
-50.00 4648.00 100.00 4648.00
Slope Surface (8 points)
-50.00 4669.50
67.50 4648.50
Phreatic Surface (6 points)
-50.00 4663.50
80.00 4650.50
Failure Surface
Distributed Loads (2 loads)
Factor of Safety: 1.39
56.00 4669.50
68.00 4650.50
Slice Geometry and Properties (43 slices)
56.50 4650.50
80.00 4650.50
10.00 4663.50 42.50 4663.50
Circular surface defined by: XL,XR,R
Intersects: XL: -6.00 YL: 4669.50 XR: 65.78 YR: 4648.50
Centre: XC: 55.65 YC: 4747.06 Radius: R: 99.08
Load X -Left Pressure X -Right Pressure
1 -16.00 3000.0 4.00 3000.0
2 35.00 1100.0 45.00 1100.0
RESULTS: Analysis 1 - M- 2011 -001 Stability Analysis
Bishop Simplified Method of Analysis - Circular Failure Surface
65.00 4650.50
56.50 4655.50
65.50 4648.50
56.50 4650.50
Slice X -S Base PoreWater Normal Test
X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor
1 -6.00 0.98 37.3 1.60 2.02 1 150.00 28.0 111.94 0.00 2312.23 0.97
2 -4.40 2.95 37.3 1.60 2.02 1 150.00 28.0 335.73 0.00 2420.39 0.97
3 - 2.79 5.00 35.0 1.65 2.02 1 150.00 28.0 570.26 0.00 2578.45 0.96
4 - 1.14 6.91 35.0 1.65 2.02 1 150.00 28.0 788.30 0.00 2682.45 0.96
5 0.52 1.83 32.6 0.37 0.44 1 150.00 28.0 208.41 0.00 2800.71 0.95
6 0.89 8.58 32.6 1.56 1.85 2 0.00 37.0 991.15 0.00 2697.11 0.88
7 2.45 9.46 32.7 1.46 1.74 2 0.00 37.0 1113.20 50.85 2797.92 0.88
8 3.92 12.97 30.3 1.74 2.02 2 0.00 37.0 1547.13 182.27 806.78 0.88
9 5.66 14.75 30.3 1.74 2.02 2 0.00 37.0 1777.80 310.59 811.74 0.88
10 7.40 12.12 28.0 1.30 1.47 2 0.00 37.0 1471.40 305.18 924.67 0.88
11 8.70 13.02 28.0 1.30 1.47 2 0.00 37.0 1588.19 368.64 1004.16 0.88
12 10.00 10.23 28.0 0.96 1.09 2 0.00 37.0 1252.43 314.25 1073.10 0.88
13 10.96 20.57 25.6 1.82 2.02 2 0.00 37.0 2528.00 668.26 1170.88 0.88
14 12.78 22.15 25.6 1.82 2.02 2 0.00 37.0 2734.59 778.38 1272.14 0.88
15 14.60 24.12 23.3 1.85 2.02 2 0.00 37.0 2987.21 883.64 1389.37 0.88