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Unit Weight: 120 Ib/ft3 <br />Cohesion: 1 psf <br />Friction Angle: 26 degrees <br />Water Surface: None <br />Material: Ph IV Geomembrane/Soil Liner <br />Strength Type: Mohr-Coulomb <br />Unit Weight: 120 Ib/ft3 <br />Cohesion: 1 psf <br />Friction Angle: 18 degrees <br />Water Surface: None <br />Global Minimums <br />Method: spencer <br />FS: 1.627000 <br />Axis Location: 424.582, 1695.227 <br />Left Slip Surface Endpoint: 379.344, 211.741 <br />Right Slip Surface Endpoint: 1584.228, 768.945 <br />Resisting Moment=1.09748e+010 lb-ft <br />Driving Moment=6.74546e+009 lb-ft <br />Resisting Horizontal Force=6.64094e+006 lb <br />Driving Horizontal Force=4.08172e+006 lb <br />Valid / Invalid Surfaces <br />Method: spencer <br />Number of Valid Surfaces: 2632 <br />Number of Invalid Surfaces: 2368 <br />Error Codes: <br />Error Code -108 reported for 1955 surfaces <br />Error Code -111 reported for 413 surfaces <br />Error Codes <br />The following errors were encountered during the computation: <br />-108 = Total driving moment <br />or total driving force < 0.1. This is to <br />limit the calculation of extremely high safety <br />factors if the driving force is very small <br />(0.1 is an arbitrary number). <br />-111 = safety factor equation did not converge <br />List of All Coordinates <br /> Material Boundary <br /> 514.199 246.623 <br /> 547.687 223.945 <br /> 577.503 223.623 <br /> 798.137 178.945 <br /> 944.487 141.031 <br /> 1004.831 134.687 <br /> 1120.671 128.276