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i <br /> <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 10.0 <br />~ Box X-Left Y-Left X-Right Y-Right Height <br />, No. (ft) (ft) (ft) (ft) (ft) <br />I <br />~ 1 432.44 195.98 442.44 195.88 9.99 <br />2 480.00 200.40 510.00 200.10 .19 <br />I <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 /> Failure Surface Specified By 8 Coordinate Points <br />' Point X-Surf Y-Surf <br /> No. (ft) (ft) <br />' 1 425.18 201.05 <br /> 2 432.51 196.82 <br /> 3 441.17 191.82 <br /> 4 480.28 200.32 <br /> 5 480.39 200.50 <br /> 6 485.00 209.37 <br />' 7 489.62 218.24 <br />8 490.54 220.00 <br /> <br />' *** 2.068 *** <br /> <br />