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t <br />A critical failure surface searching method, using a random <br />technique for generating CIRCULAR surfaces has been specified. <br />600 trial surfaces will be generated and analyzed. <br />20 Surfaces initiate from each of 30 points equally spaced <br />along the ground surface between x = 140.0 ft <br />and x = 180.0 ft <br />Each surface terminates between x = 360.0 ft <br />and x = 410.0 ft <br />Unless further limitations were imposed, the minimum elevation <br />at which a surface extends is y = .0 ft <br />4.0 ft line segments define each trial failure surface. <br />--------------------- <br />ANGULAR RESTRICTIONS <br />--------------------- <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 - 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 57 coordinate points <br />Point x-surf y-surf <br />No. (ft) (ft) <br />1 155.17 21.72