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Failure Surface <br /> --------------- <br /> Initial circular surface for critical search defined by:XL,XR,R <br /> Intersects: XL: 200.00 YL: 8265.27 XR: 609.00 YR: 8050.57 <br /> Centre: XC: 610.62 YC: 8550.57 Radius: R: 500.00 <br /> Variable Restraints <br /> ------------------- <br /> Parameter descriptor: XL XR R <br /> Range of variation: 360.00 350.00 25.00 <br /> Trial positions within range: 25 75 50 <br /> - -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - <br /> 2.2. RESULTS: Analysis 2 - Active Mined Bench Slope <br /> Bishop Simplified Method of Analysis-Circular Failure Surface <br /> --------------------------------------------------------------- <br /> Critical Failure Surface Search using Multiple Circle Generation Techniques <br /> Initial failure surface approximation- Factor of Safety: 134.925 <br /> Analysis Summary <br /> ---------------- <br /> There were: 37173 successful analyses from a total of 93751 trial failure surfaces <br /> 56578 analyses terminated due to unacceptable geometry <br /> Critical (minimum) Factor of Safety:54.22 <br /> ------------------------------------------ <br /> Negative normal stresses exist on the base of one or more slices;examine slice data and consult the GALENA Help <br /> 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 /> 1 125.00 8290.27 462.38 8135.49 491.52 8644.09 509.44 54.220 <--Critical Surface <br /> 2 20.00 8330.52 784.00 7965.27 506.22 8365.88 487.50 54.371 <br /> 3 20.00 8330.52 784.00 7965.27 506.66 8366.81 488.01 54.372 <br /> 4 20.00 8330.52 784.00 7965.27 507.10 8367.74 488.52 54.373 <br /> 5 20.00 8330.52 784.00 7965.27 507.54 8368.66 489.03 54.375 <br /> 6 20.00 8330.52 784.00 7965.27 508.42 8370.49 490.05 54.376 <br /> 7 20.00 8330.52 784.00 7965.27 507.98 8369.58 489.54 54.376 <br /> 8 20.00 8330.52 784.00 7965.27 508.85 8371.40 490.56 54.384 <br /> 9 20.00 8330.52 784.00 7965.27 509.29 8372.31 491.07 54.385 <br /> 10 20.00 8330.52 784.00 7965.27 509.72 8373.22 491.58 54.386 <br /> 11 20.00 8330.52 784.00 7965.27 510.16 8374.13 492.09 54.388 <br /> 12 20.00 8330.52 784.00 7965.27 510.59 8375.03 492.60 54.389 <br /> 13 20.00 8330.52 784.00 7965.27 511.02 8375.93 493.11 54.391 <br /> YRR Geotech <br /> October 2021 8 Lewicki 81 Associates <br />