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Foundation Engineering

Active Pressure -III

The lateral e...

Question

The lateral earth pressure coefficient of a soil, $K_{a}$ for active state, $K_{p}$ for passive state and $K_{0}$ for at-rest condition, compare as

A

K_{0} < K_{a} < K_{p}

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B

K_{a} < K_{0} < K_{p}

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C

K_{a} < K_{p} < K_{0}

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D

K_{p} < K_{0} < K_{a}

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Solution

The correct option is B $K_{a} < K_{0} < K_{p}$
$K_{a} = \frac{1 - sin ϕ}{1 + sin ϕ}, K_{p} = \frac{1 + sin ϕ}{1 - sin ϕ} and K_{o} = 1 - sin ϕ K_{p} > K_{o} > K_{a}$

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