Question: A raft 45 ft x 45 ft is designed to support a residential building with a basement. The foundation level is 15 ft below

A raft 45 ft x 45 ft is designed to support a

A raft 45 ft x 45 ft is designed to support a residential building with a basement. The foundation level is 15 ft below the ground surface. The supporting soil is deep clay of y = 110 pcf, Su = 0.9 ksf. The groundwater table is 1.0 ft below the ground surface. Estimate the allowable bearing capacity. Use a factor of safety of 2.0.

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