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GALENA 6.10 Analysis Results Licensee: Greg Lewicki and Associates <br /> Project: Ouray Silver Mine - Atlas Waste Pile <br /> File: D:\Dropbox\Revenue Mine\mill\mill certification\Slope Stablity\Atlas Pile Lab Scenario 2.gmf <br /> Processed: 13 Nov 2015 12:31:13 <br /> DATA: Analysis 1 - Lab Scenario 2 <br /> Material Properties (3 materials) <br /> ------------------- <br /> Material: 1 (Mohr-Coulomb Isotropic) - Existing waste rock <br /> Cohesion Phi UnitWeight Ru <br /> 0.00 45.0 110.00 Auto <br /> Material: 2 (Mohr-Coulomb Isotropic) -Hill tailings <br /> Cohesion Phi UnitWeight Ru <br /> 2040.00 25.0 109.90 Auto <br /> Material: 3 (Mohr-Coulomb Isotropic) - Bedrock <br /> Cohesion Phi UnitWeight Ru <br /> 0.00 50.0 130.00 Auto <br /> Water Properties <br /> ---------------- <br /> Unit weight of water: 62,400 Unit weight of water/medium above ground: 62.400 <br /> Material Profiles (3 profiles) <br /> ----------------- <br /> Profile: 1 (5 points) Material beneath: 2 -Hill tailings <br /> 0.00 113.00 126.00 70.00 225.00 61.00 341.00 60.00 560.00 0.00 <br /> Profile: 2 (5 points) Material beneath: 1 - Existing waste rock <br /> 128.00 22.00 183.00 8.00 248.00 4.00 471.00 3.00 560.00 0.00 <br /> Profile: 3 0 points) Material beneath: 3 - Bedrock <br /> 0.00 113.00 128.00 22.00 161.00 0.00 <br /> Slope Surface (5 points) <br /> ------------- <br /> 0.00 113.00 126.00 70.00 225.00 61.00 341.00 60.00 560.00 0.00 <br /> Phreatic Surface (2 points) <br /> ---------------- <br /> 0.00 0.00 600.00 0.00 <br /> Failure Surface <br /> --------------- <br /> Initial circular surface for critical search defined by: XC,YC,R <br /> Intersects: XL: 364.56 YL: 53.54 XR: 443.13 YR: 32.02 <br /> Centre: XC: 465.00 YC: 266.00 Radius: R: 235.00 <br /> Variable Restraints <br /> Parameter descriptor: XC YC R <br /> Range of variation: 100.00 100.00 200.00 <br /> Trial positions within range: 100 100 100 <br /> ------------------------------------------------------------------------------------------------------------------------------------ <br /> RESULTS: Analysis 1 - Lab Scenario 2 <br /> Bishop Simplified Method of Analysis -Circular Failure Surface <br /> --------------------------------------------------------------- <br /> Critical Failure Circle Search using Multiple Circle Generation Techniques <br /> Factor of Safety for initial failure circle approximation: 31.82 <br /> There were: 259457 successful analyses from a total of 1000001 trial circles <br /> 740539 analyses terminated due to unacceptable geometry <br /> 5 analyses that failed to produce a result <br /> Critical (minimum) Factor of Safety: 4.30 <br /> Negative normal stresses exist on the base of one or more slices - examine slice data and consult the GALENA Help utility <br /> Circle and Results Summary (Lowest 99 Factor of Safety circles) <br /> -------------------------- <br /> Circle X-Left Y-Left X-Right Y-Right X-Centre Y-Centre Radius Fos <br /> 1 311.48 60.25 559.73 D.07 480.66 216.00 229.95 4.302 <br /> 2 310.59 60.26 559.93 0.02 480.66 218.02 231.97 4.303 <br /> 3 315.48 60.22 559.85 D.04 483.69 217.01 229.95 4.306 <br /> 4 306.60 60.30 559.76 0.07 477.63 217.01 231.97 4.307 <br /> 5 305.70 60.30 559.97 0.01 477.63 219.03 233.99 4.305 <br /> 6 310.46 60.26 559.15 0.23 479.65 216.00 229.95 4.314 <br /> 7 3D9.51 60.27 559.36 O.lB 479.65 218.02 231.97 4.315 <br /> 8 314.46 60.23 559.28 0.20 482.68 217.01 229.95 4.317 <br /> 9 313.58 60.24 559.48 0.14 482.68 219.03 231.97 4.317 <br /> 10 308.69 60.28 559.56 0.12 479.65 220.04 233.99 4.317 <br /> 11 312.70 60.24 559.67 0.09 482.68 221.05 233.99 4.317 <br /> 12 311.82 60.25 559.86 0.04 482.68 223.07 236.01 4.318 <br /> 13 307.80 60.29 559.76 0.06 479.65 222.06 236.01 4.318 <br /> 14 306.93 60.25 559.96 0.01 479.65 224.08 238.03 4.320 <br /> 15 302.62 60.33 559.52 0.13 474.60 216.00 231.97 4.321 <br />