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A critical failure surface searching method, using a random <br />technique for generating CIItCULAR surfaces has been specified. <br />225 trial surfaces will be generated and analyzed. <br />15 Surfaces initiate from each of 15 points equally spaced <br />along the ground surface between x = 72.0 ft <br />and x = 160.0 ft <br />Each surface terminates between x = 25.0 ft <br />and x = 32.0 ft <br />Unless further limitations were imposed, the minimum elevation <br />at which a surface extends is y = 850.0 ft <br />8.0 ft line segments define each trial failure surface. <br />ANGULAR RESTRICTIONS <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 />**~***~**x~******xx***«***+x******r********+*rx*******~****s*****x*~***• <br />-- WARNING -- WARNING -- WARNING -- WARNING -- (# 48) <br />s********~x*r*x*x******x*********r*x****•~***********.***.**:**.***~**^* <br />Negative effective stresses were calculated at the base of a slice. <br />This warning is usually reported for cases where slices have low self <br />weight and a relatively high "c" shear strength pazameter. In such <br />