1.

A 40° slope is excavated to a depth of 10 m in a deep layer of saturated clay of unit weight 20 kN.m 3 ; the relevant shear strength parameters are c u = 70 kN/m 2 and ? u = 0. The rock ledge is at a great depth. The Taylor's stability coefficient for ? u = 0 and 40° slope angle is 0.18. The factor of safety of the slope is :

A. 2.0
B. 2.1
C. 2.2
D. 2.3
Answer» B. 2.1


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