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. You are supporting an excavation with a shoring system to support a cut of 25’...

. You are supporting an excavation with a shoring system to support a cut of 25’ deep in silty clay soil. What isthe maximum pressure on the shoring at the subgrade/dredge line if the soil properties include ϒ = 117 pcf, c = 220 psf, and φ = 22o . What is the angle of the failure plane from the face of the trench

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pressure diagram

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