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The active and passive portions of the sliding surfaces <br /> are generated according to the Rankine theory. <br /> 100 trial surfaces will be generated and analyzed. <br /> 7 boxes specified for generation of central block base <br /> Length of line segments for active and passive portions of <br /> sliding block is 17 . 0 ft <br /> Box x-left y-left x-right y-right Width <br /> no. (ft) (ft) (ft) (ft) (ft) <br /> 1 99 . 0 134 . 0 100 . 0 134 . 0 1 . 5 <br /> 2 150 . 0 109 . 0 151 . 0 109 . 0 1 . 5 <br /> 3 152 . 0 109 . 0 950 . 0 117 . 0 1 . 5 <br /> 4 984 . 0 134 . 0 985 . 0 134 . 0 1 . 5 <br /> 5 998 . 0 134 . 0 999 . 0 134 . 0 1 . 5 <br /> 6 1189 . 0 169 . 0 1190 . 0 169 . 0 1 . 5 <br /> 7 1289 . 0 179 . 0 1290 . 0 179 . 0 1 . 5 <br /> Factors of safety have been calculated by the <br /> * * * * * SIMPLIFIED JANBU METHOD <br /> The 10 most critical of all the failure surfaces examined <br /> are displayed below - the most critical first <br /> Failure surface No. 1 specified by 17 coordinate points <br /> Point x-surf y-surf <br /> No . (ft) (ft) <br /> 1 98 . 95 135 . 00 <br /> 2 99 . 87 134 . 18 <br /> 3 150 . 26 108 . 29 <br /> 4 939 . 81 116 . 22 <br /> 5 984 . 94 133 . 62 <br /> 6 998 . 35 134 . 00 <br /> 7 1189 . 76 168 . 31 <br /> 8 1289 . 07 178 . 89 <br /> 9 1289 . 90 180 . 02 <br /> 10 1301 . 92 192 . 04 <br /> 11 1313 . 94 204 . 06 <br /> 12 1325 . 96 216 . 08 <br /> 13 1337 . 98 228 . 10 <br /> 14 1350 . 00 240 . 12 <br /> 15 1362 . 02 252 . 14 <br /> 16 1374 . 04 264 . 16 <br /> 17 1374 . 41 264 . 53 <br />