The direct shear test has been shown to be an effective test for determining the shear strength parameters (i.e. Mohr-Coulomb Failure Criteria) for coarse grained soils, especially sands. Outline the major shortcoming of this test

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Author:KASSIMALI, Aslam.
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The direct shear test has been shown to be an effective test for determining the shear strength parameters (i.e. Mohr-Coulomb Failure Criteria) for coarse grained soils, especially sands. Outline the major shortcoming of this test with examples? (Answer in 15 mins)

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The Direct Shear Test is a laboratory test or field test conduced on the soil masses in order to measure the shear strength properties or the discontinuities within the soil mass or rock. A relatively undisturbed soil sample is used for performing the Direct Shear Test and can be performed under several conditions. The test is normally conducted on saturated soil mass but can be used for both drained and undrained conditions.

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