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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 Hine\mill\mill certification\Slope Stablity\Atlas Pile Lab Scenario l.gmf <br /> Processed: 13 Nov 2015 12:08:24 <br /> DATA: Analysis I - Lab Scenario 1 <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) -Mill tailings <br /> Cohesion Phi UnitWeight Ru <br /> 1730.00 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 -Mill 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 /> 0.00 113.00 120.00 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 0.00 600.05 0.00 <br /> Failure Surface <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 /> ------------------- <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 1 <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: 27.24 <br /> There were: 259454 successful analyses from a total of 1000001 trial circles <br /> 740539 analyses terminated due to unacceptable geometry <br /> 8 analyses that failed to produce a result <br /> Critical (minimum) Factor of Safety: 3.28 <br /> Negative normal stresses exist on the base of one or more slices - examine slice data and consult the GALENA Help utility <br /> Test Factor is less than 0.2 lower limit for 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 /> 1 341.00 60.00 557.46 0.69 505.91 237.21 242.07 3.283 <br /> 2 341.04 59.99 552.66 2.01 500.86 218.12 231.97 3.385 <br /> 3 315.48 60.22 559.85 0.04 483.69 217.01 229.95 4.135 <br /> 4 319.49 60.19 559.90 0.03 486.72 218.02 129.95 4.142 <br /> 5 311.48 60.25 559.13 0.07 480.66 216.00 229.95 4.I42 <br /> 6 320.37 60.18 559.72 0.08 486.72 216.05 227.93 4.142 <br /> 7 310.59 60.26 559.93 0.02 480.66 218.02 231.97 4.143 <br /> 8 314.46 60.23 559.20 0.20 482.68 217.01 129.95 4.146 <br /> 9 313.58 60.24 559.48 0.14 482.68 219.03 231.97 4.147 <br /> 10 312.70 60.24 559.67 0.09 482.68 121.05 233.99 4.147 <br /> 11 311.82 60.25 559.86 0.04 482.68 223.07 236.01 4.148 <br /> 12 316.72 60.21 559.71 O.DB 485.71 222.06 233.99 4.150 <br /> 13 315.86 60.22 559.89 0.03 485.71 224.08 236.01 4.150 <br /> 14 317.60 60.20 559.53 0.13 485.71 220.04 231.97 4.150 <br />