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Piezometric Surfaces (1 surface) <br /> -------------------- <br /> Surface within profile: 2 (4 points) - Sand and gravel, mixed grain size <br /> 0.00 4947.00 159.00 4947.00 180.00 4936.00 215.00 4936.00 <br /> Failure Surface <br /> --------------- <br /> Initial circular surface for critical search defined by: XL,XR,R <br /> Intersects: XL: 155.00 YL: 4953.26 XR: 179.00 YR: 4944.60 <br /> Centre: XC: 285.75 YC: 5277.92 Radius: R: 350.00 <br /> Distributed Loads (1 load) <br /> ----------------- <br /> Load X-Left Pressure X-Right Pressure <br /> 1 127.00 818.0 157.00 818.0 <br /> Variable Restraints <br /> ------------------- <br /> Parameter descriptor: XL XR R <br /> Range of variation: 22.00 14.50 15.00 <br /> Trial positions within range: 30 15 15 <br /> - -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - <br /> RESULTS: Analysis 3 - Active Highwall <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: 5.078 <br /> There were: 3916 successful analyses from a total of 6751 trial surfaces <br /> 2835 analyses terminated due to unacceptable geometry <br /> Critical (minimum) Factor of Safety: 1.42 <br /> Negative normal stresses exist on the base of one or more slices; examine slice data and consult the GALENA Help utility <br /> 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 /> 1 166.00 4953.25 180.04 4936.00 438.54 5160.68 342.50 1.424 <-- Critical Surface <br /> 2 166.00 4953.25 180.04 4936.00 440.21 5162.03 344.64 1.424 <br /> 3 166.00 4953.25 180.04 4936.00 439.37 5161.35 343.57 1.424 <br /> 4 166.00 4953.25 180.04 4936.00 441.04 5162.71 345.71 1.424 <br /> 5 166.00 4953.25 180.04 4936.00 441.87 5163.38 346.79 1.424 <br /> 6 166.00 4953.25 180.04 4936.00 442.70 5164.06 347.86 1.424 <br /> 7 166.00 4953.25 180.04 4936.00 443.53 5164.74 348.93 1.424 <br /> 8 166.00 4953.23 180.04 4936.00 444.36 5165.41 350.00 1.424 <br />