A concrete retaining wall (y-=150 lb/ft) supporting a cohesionless backfill and surcharge pressure 2. q=250 lb/ft? is shown in the figure: a. Calculate the factor of safety against sliding b. Calculate the factor of safety against overturning ** 1ft C=0. O =32° T= 120 lb/t 14 ft 4ft 2ft 2 ft O = 30° C=0 4 ft 6 ft

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