May 19 Daily Question: Factor of Safety Against Overturning for a Retaining Wall

NCEES Civil PE Specification III.A.: Lateral Earth Pressure


You are designing a cantilever retaining wall for your new home in Beverly Hills, California. The hillside in your neighborhood is known for saturated soft clay that is prone to collapse and has already damaged the third guest house of many residents. Given the parameters in the following figure, determine the factor of safety against overturning for the retaining wall.

Ignore any lateral resistance provided by passive pressure but consider the weight of soil above the toe in your calculation. 

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