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Table <br /> COVER SLOPE STABILITY LYSIS- INFINITE SLOPE <br /> Forward Landfill Cover Overall Slope Stability-Unsaturated <br /> Slope Surface Final Cover <br /> Interim Cover <br /> Potential Failure Surface <br /> MSW <br /> z <br /> 1 <br /> Data: Z--failure depth in vertical feet Z= 4 ft <br /> Cover Soil Density: yt= 120 pcf <br /> Soil/Interface Layer Properties: <br /> -Cohesion c= 100 psf <br /> -Friction Angle = 30 degrees <br /> E1=expansion index EI= 50 <br /> F=cohesion reduction factor-40/(13+EI)= F= 0.63 <br /> yb=Total unit Weight= Yb= 120 pcf <br /> Slope Angle (3.2:1, H:V) a = 17.4 degrees <br /> saturation of slope surface to depth Z <br /> flow lines parallel to slope face <br /> 1). Static Factor of Safety=Yb tan� +2Fc = 2.31 <br /> yt tan a ytZsin2a <br /> Table 4 Infinite SurficialSlopeStabilityoverall unsat.xls <br />