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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 V 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 />Material: Structural Fill <br />Strength Type: Mohr-Coulomb <br />Unit Weight: 120 Ib/ft3 <br />Cohesion: 1 psf <br />Friction Angle: 38 degrees <br />Water Surface: None <br />Global Minimums <br />Method: spencer <br />FS: 1.725120 <br />Axis Location: 695.708, 739.406 <br />Left Slip Surface Endpoint: 671.005, 390.000 <br />Right Slip Surface Endpoint: 960.411, 510.000 <br />Resisting Moment=3.37484e+008 lb-ft <br />Driving Moment= 1.95629e+008 lb-ft <br />Resisting Horizontal Force=813946 lb <br />Driving Horizontal Force=471820 lb <br />Valid / Invalid Surfaces <br />Method: spencer <br />Number of Valid Surfaces: 1321 <br />Number of Invalid Surfaces: 3679 <br />Error Codes: <br />Error Code -107 reported for 81 surfaces <br />Error Code -108 reported for 3303 surfaces <br />Error Code -111 reported for 295 surfaces <br />Error Codes <br />The following errors were encountered during the computation: <br />-107 = Total driving moment or <br />total driving force is negative. This will occur <br />if the wrong failure direction is specified, <br />or if high external or anchor loads are applied <br />against the failure direction. <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).