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Failure Surface(Critical seed,from a previous multiple analysis) <br /> --------------- <br /> Initial circular surface for critical search defined by:XL,XR,R <br /> Intersects: XL: 230.00 YL: 8240.27 XR: 367.78 YR: 8165.27 <br /> Centre: XC: 545.59 YC: 8655.99 Radius: R: 521.94 <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 /> 4.2. RESULTS: Analysis 4 - 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: 1.931 <br /> Analysis Summary <br /> ---------------- <br /> There were: 3575 successful analyses from a total of 93751 trial failure surfaces <br /> 89099 analyses terminated due to unacceptable geometry <br /> 1077 analyses that failed to produce a valid result <br /> Critical (minimum) Factor of Safety: 0.32 <br /> ------------------------------------------ <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 /> 1 410.00 8165.27 415.08 8148.06 925.04 8307.97 534.44 0.323 <--Critical Surface <br /> 2 410.00 8165.27 415.08 8148.06 924.55 8307.82 533.93 0.323 <br /> 3 410.00 8165.27 415.08 8148.06 924.06 8307.68 533.42 0.323 <br /> 4 410.00 8165.27 415.08 8148.06 923.57 8307.54 532.91 0.323 <br /> 5 410.00 8165.27 415.08 8148.06 923.08 8307.39 532.40 0.323 <br /> 6 410.00 8165.27 415.08 8148.06 922.59 8307.25 531.89 0.323 <br /> 7 410.00 8165.27 415.08 8148.06 921.12 8306.81 530.36 0.323 <br /> 8 410.00 8165.27 415.08 8148.06 922.10 8307.10 531.38 0.323 <br /> 9 410.00 8165.27 415.08 8148.06 921.61 8306.96 530.87 0.323 <br /> 10 410.00 8165.27 415.08 8148.06 920.63 8306.67 529.85 0.323 <br /> 11 410.00 8165.27 415.08 8148.06 920.14 8306.52 529.34 0.323 <br /> 12 410.00 8165.27 415.08 8148.06 919.65 8306.38 528.83 0.323 <br /> 13 410.00 8165.27 415.08 8148.06 919.16 8306.24 528.32 0.323 <br /> 14 410.00 8165.27 415.08 8148.06 918.67 8306.09 527.81 0.323 <br /> YRR Geotech <br /> October 2021 19 ® Lewicki&Associates <br />