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• 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 - 5.0) 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 21 coordinate points <br />Point x-surf y-surf <br />No. (ft) (f t) <br />1 37.89 7473.99 <br />2 41.41 7972.09 <br />3 45.06 7470.45 <br />4 48.83 7969.10 <br />5 52.68 7468.04 <br />6 56.61 7967.27 <br />7 60.58 7466.80 <br />8 64.58 7466.69 <br />9 68.58 7466.78 <br />10 72.55 7967.22 <br />11 76.48 7467.96 <br />12 80.34 7969.00 <br />13 84.12 7470.33 <br />14 87.78 7471.94 <br />15 91.30 7473.83 <br />16 94.68 7975.98 <br />17 97.88 7478.37 <br />18 100.89 7481.01 <br />19 103.69 7483.86 <br />20 106.27 7486.92 <br />21 107.04 7487.99 <br />**** Simplified BISHOP FOS = 2.097 **"* <br />• <br />