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<br />along the ground surface between x = .0 ft <br />and x = 50.0 ft <br />Each surface terminates between x = 100.0 ft <br />and x = 135.0 ft <br />Unless further limitations were imposed, the minimum elevation <br />at which a surface extends is y = 23.0 ft <br />* • + * + DEFAULT SEGMENT LENGTH SELECTED BY XSTABL * * <br />4.0 ft line segments define each trial failure surface. <br />_, ANGULAR RESTRICTIONS <br />-.- The first segment of each failure surface will be inclined <br />within the angular range defined by <br />Lower angular limit :_ -45.0 degrees <br />Upper angular limit :_ (slope angle - 8.0) degrees <br />Factors of safety have been calculated by the <br />* * * * * SIMPLIFIED BISHOP METHOD * <br />The most critical circular failure surface <br />is specified by 17 coordinate points <br />Point x-surf y-surf <br />No. (ft) (ft) <br />1 47.37 35.86 <br />2 51.08 37.35 <br />3 54.80 38.84 <br />4 58.50 40.33 <br />5 62.21 41.84 <br />6 65.91 43.35 <br />7 69.61 44.87 <br />8 73.31 46.40 <br />9 77.01 47.93 <br />10 80.70 49.47 <br />11 84.39 51.02 <br />12 88.07 52.57 <br />13 91.76 54.13 <br />14 95.43 55.70 <br />