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144 trial surfaces will be generated and analyzed. <br /> 12 Surfaces initiate from each of 12 points equally spaced <br /> along the ground surface between x = 240 . 0 ft <br /> and x = 280 . 0 ft <br /> Each surface terminates between x = 100 . 0 ft <br /> and x = 128 . 0 ft <br /> Unless further limitations were imposed, the minimum elevation <br /> at which a surface extends is y = . 0 ft <br /> 7 . 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 22 coordinate points <br /> Point x-surf y-surf <br /> No. (ft) (ft) <br /> 1 243 . 64 78 . 00 <br /> 2 236 . 84 76 . 32 <br /> 3 229 . 98 74 . 91 <br /> 4 223 . 08 73 . 78 <br /> 5 216 . 13 72 . 93 <br /> 6 209 . 15 72 . 36 <br /> 7 202 . 16 72 . 07 <br /> 8 195 . 16 72 . 06 <br /> 9 188 . 16 72 . 33 <br /> 10 181 . 18 72 . 89 <br /> 11 174 . 23 73 . 72 <br /> 12 167 . 32 74 . 84 <br /> 13 160 . 46 76 . 23 <br /> 14 153 . 67 77 . 90 <br />