2011-04-19_PERMIT FILE - M2011001

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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 Analysis - Galena\Iv...\Boyd Freeman Ditch.gmf Processed: 18 Apr 2011 12:56:48 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 4688.00 100.00 4688.00 Profile: 2 (2 points) Material beneath: 2 - Sand and Gravel -50.00 4682.50 100.00 4682.50 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 4688.00 56.00 4688.00 56.50 67.50 4648.50 68.00 4650.50 100.00 Phreatic Surface (12 points) ---------------- -50.00 4684.00 -34.00 4688.00 -23.00 -4.00 4676.00 8.00 4673.00 21.00 56.50 4650.50 200.00 4650.50 Failure Surface --------------- Circular surface defined by: XL,XR,R 4650.50 65.00 4650.50 4650.50 4683.00 -17.00 4681.00 4669.00 38.00 4665.00 Intersects: XL: -34.00 YL: 4688.00 XR: 67.25 YR: 4648.50 Centre: XC: 56.21 YC: 4769.72 Radius: R: 121.72 RESULTS: Analysis 1 - M-2011-001 Stability Analysis Bishop Simplified Method of Analysis - Circular Failure Surface --------------------------------------------------------------- Factor of Safety: 1.47 Slice Geometry and Properties (45 slices) Slice X-S ------------------- Base ----- ----------- ---- X-Left Area Angle Width Length Matl Cohesion Phi 1 -34.00 2.19 46.4 2.04 2.96 1 150.00 28.0 2 -31.96 6.58 46.4 2.04 2.96 1 150.00 28.0 3 -29.91 6.18 43.6 1.26 1.74 1 150.00 28.0 4 -28.65 21.03 43.6 3.03 4.18 2 0.00 37.0 5 -25.62 24.98 40.8 2.62 3.47 2 0.00 37.0 6 -23.00 21.34 40.9 1.86 2.46 2 0.00 37.0 7 -21.14 27.06 38.1 2.07 2.63 2 0.00 37.0 8 -19.07 30.41 38.1 2.07 2.63 2 0.00 37.0 9 -17.00 8.33 38.1 0.53 0.67 2 0.00 37.0 10 -16.47 37.35 35.3 2.23 2.74 2 0.00 37.0 11 -14.23 40.88 35.3 2.23 2.74 2 0.00 37.0 12 -12.00 53.63 32.9 2.69 3.20 2 0.00 37.0 13 -9.31 58.22 32.5 2.69 3.18 2 0.00 37.0 14 -6.63 61.16 29.7 2.63 3.02 2 0.00 37.0 15 -4.00 62.44 29.7 2.52 2.90 2 0.00 37.0 16 -1.48 69.10 26.9 2.64 2.96 2 0.00 37.0 17 1.17 72.64 26.9 2.64 2.96 2 0.00 37.0 18 3.81 59.93 24.1 2.09 2.29 2 0.00 37.0 19 5.91 61.89 24.1 2.09 2.29 2 0.00 37.0 20 8.00 37.05 24.1 1.22 1.34 2 0.00 37.0 65.50 4648.50 -12.00 4680.00 56.25 4655.00 PoreWater Normal Test Weight Force Stress Factor 250.09 112.78 21.35 1.05 750.50 338.52 219.74 1.05 704.95 299.90 386.73 1.03 2467.01 998.98 625.44 0.93 3016.15 1108.01 894.64 0.92 2610.01 945.12 1089.03 0.92 3335.11 1166.54 1277.03 0.91 3770.90 1319.15 1443.92 0.91 1036.16 363.98 1549.38 0.91 4658.60 1603.22 1685.30 0.90 5117.83 1796.98 1854.90 0.90 6734.97 2254.59 2058.32 0.89 7331.95 2317.35 2236.61 0.89 7719.23 2253.20 2441.49 0.89 7895.04 2253.81 2596.22 0.89 8749.71 2437.88 2795.80 0.89 9210.55 2563.76 2942.88 0.89 7606.83 2062.74 3121.53 0.89 7861.96 2121.91 3225.42 0.89 4708.82 1263.59 3307.12 0.89