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1 <br />* * <br />and X = 200.00 ft. <br />Each Surface Terminates Between X = 450.00 ft. <br />and X = 550.00 ft. <br />Unless Further Limitations Were Imposed, The Minimum Elevation <br />At Which A Surface Extends Is Y = 230.00 ft. <br />15.00 ft. Line Segments Define Each Trial Failure Surface. <br />Restrictions Have Been Imposed Upon The Angle Of Initiation. <br />The Angle Has Been Restricted Between The Angles Of -30.0 <br />And 20.0 deg. <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 Bishop Method <br />Failure Surface Specified By 37 Coordinate Points <br />Point <br />X -Surf <br />Y -Surf <br />No. <br />(ft) <br />(ft) <br />1 <br />28.57 <br />257.90 <br />2 <br />42.71 <br />262.91 <br />3 <br />56.78 <br />268.11 <br />4 <br />70.78 <br />273.49 <br />5 <br />84.71 <br />279.05 <br />6 <br />98.57 <br />284.80 <br />7 <br />112.35 <br />290.72 <br />8 <br />126.05 <br />296.82 <br />9 <br />139.67 <br />303.10 <br />10 <br />153.21 <br />309.56 <br />11 <br />166.67 <br />316.19 <br />12 <br />180.04 <br />323.00 <br />13 <br />193.31 <br />329.98 <br />14 <br />206.50 <br />337.13 <br />15 <br />219.59 <br />344.45 <br />16 <br />232.58 <br />351.94 <br />17 <br />245.48 <br />359.60 <br />18 <br />258.28 <br />367.43 <br />26 <br />