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E IWorkOropbox(GLA)IRobinsonsORMS11 5 to 1 FOS Wednesday,December 12,2018 9 36 AM <br /> GALENA 7.1 Analysis Results Version: 7.10.1.02 Licensee: Greg Lewicki and <br /> Associates <br /> Project: Robinson Sons Pit 1 <br /> File: E:\Work\Dropbox (GLA) \Robinsons\DRMS\1.5 to 1 Slope <br /> Stability.gmf Processed: 12 Dec 2018 09:26:36 <br /> DATA: Analysis 1 - 1.5H:1V Highwall Stability <br /> Material Properties (2 materials) <br /> ------------------- <br /> Material: 1 (Mohr-Coulomb Isotropic) - Sand and gravel, mixed grain size <br /> Cohesion Phi UnitWeight Ru <br /> 0.00 45.0 110.00 Auto <br /> Material: 2 (Mohr-Coulomb Isotropic) - Loose sand, mixed grain size <br /> Cohesion Phi UnitWeight Ru <br /> 0.00 34 .0 99.00 Auto <br /> Water Properties <br /> ---------------- <br /> Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 <br /> Material Profiles (1 profile) <br /> ----------------- <br /> Profile: 1 (4 points) Material beneath: 1 - Sand and gravel, mixed grain size <br /> 0.00 6960.00 100.00 6960.00 145.00 6930.00 200.00 <br /> 6930.00 <br /> Slope Surface (4 points) <br /> ------------- <br /> 0.00 6960.00 100.00 6960.00 145.00 6930.00 200.00 <br /> 6930.00 <br /> Phreatic Surface (2 points) <br /> ---------------- <br /> 0.00 6828.00 200.00 6828.00 <br /> Piezometric Surfaces (1 surface) <br /> -------------------- <br /> Failure Surface <br /> --------------- <br /> Initial circular surface for critical search defined by: XL,XR,R <br /> Intersects: XL: 92.00 YL: 6960.00 XR: 138.00 YR: 6934 .67 <br /> Centre: XC: 161.55 YC: 7031.85 Radius: R: 100.00 <br /> Variable Restraints <br /> ------------------- <br /> Parameter descriptor: XL XR R <br /> Range of variation: 20.00 20.00 50.00 <br /> Trial positions within range: 20 20 50 <br /> - -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- <br /> -- -- -- -- -- -- -- -- -- - <br /> RESULTS: Analysis 1 - 1.5H:1V Highwall Stability <br /> Bishop Simplified Method of Analysis - Circular Failure Surface <br /> --------------------------------------------------------------- <br /> Critical Failure Surface Search using Multiple Circle Generation Techniques <br /> Factor of Safety for initial failure surface approximation: 1 .787 <br /> -1- <br />