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The lateral earth pressure at rest with respect to Poisson’s ratio is _______

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+1 vote
in Geotechnical Engineering II by (93.7k points)
The lateral earth pressure at rest with respect to Poisson’s ratio is _______

(a) σh=μ(σh-σv)

(b) σh=μ(σh-σv)

(c) σh=μ(σh+σv)

(d) σh=-μ(σh-σv)

I have been asked this question in semester exam.

Question is taken from Earth Pressure at Rest in portion Failure Envelopes & Earth Pressure of Geotechnical Engineering II

1 Answer

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by (243k points)
Right choice is (c) σh=μ(σh+σv)

To explain: The earth pressure at rest has the condition corresponding to ∈h=0.

Since, \(∈_h=\frac{1}{E} [σ_h-μ(σ_h-σ_v)],\)

∴ σh=μ(σh+σv).

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