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1 <br />' A Critical Failure Surface Searching Method, Using A Random <br />Technique For Generating Sliding Block Surfaces, Has Been <br />Specified. <br />The Active And Passive Portions Of The Sliding Surfaces <br />' Are Generated According To The Rankine Theory. <br />' 1000 Trial Surfaces Have Been Generated. <br />' 2 Boxes Specified For Generation Of Central Block Base <br /> Length Of Line Segments For Active And Passive Portions Of <br />' Sliding Block Is 20.0 <br /> Box X-Left Y-Left X-Right Y-Right Height <br />' No. (ft) (ft) (ft) (ft) (ft) <br /> 1 365.50 170.00 432.44 166.08 9.99 <br /> 2 432.45 166.80 495.00 165.00 9.99 <br /> <br />' .Following Are Displayed The Ten Most Critical Of The Trial <br />Failure Surfaces Examined. They Are Ordered - Most Critical <br />First. <br />* * Safety Factors Are Calculated By The Modified Janbu Method <br /> <br /> Failure Surface Specified By 11 Coordinate Points <br />1 <br /> Point X-Surf Y-Surf <br /> No. (ft) (ft) <br />t <br /> 1 311.74 202.19 <br /> 2 323.43 195.44 <br /> 3 340.75 185.44 <br />' 4 358.07 175.44 <br /> 5 370.81 165.84 <br /> 6 480.63 161.23 <br /> 7 487.24 170.00 <br /> 8 496.37 187.55 <br /> 9 503.71 200.26 <br /> 10 512.95 218.00 <br />' 11 513.40 218.87 <br />' ** * 2.193 *** <br />