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DIRECT SHEAR TEST - Weebly

DIRECT SHEAR TEST SOIL MECHANICS SOIL MECHANICS LABORATORY DEPARTMENT OF CIVIL ENGINEERING UNIVERSITY OF MORATUWA SRI LANKA DIRECT SHEAR TEST OBJEVTIVES To determine the SHEAR strength parameters for a given soil using the DIRECT SHEAR test. INTRODUCTION The test is carried out on either undisturbed samples or remoulded samples. To facilitate the remoulding purpose, a soil sample may be compacted at optimum moisture content in a compaction mould. Then specimen for the DIRECT SHEAR test could be obtained using the correct cutter provided. Alternatively, sand sample can be placed in a dry state at a required density, in the assembled SHEAR box. A normal load is applied to the specimen and the specimen is sheared across the pre-determined horizontal plane between the two halves of the SHEAR box. Measurements of SHEAR load, SHEAR displacement and normal displacement are recorded. The test is repeated foe two or more identical specimens under different normal loads.

The test is carried out on either undisturbed samples or remoulded samples. To facilitate the remoulding purpose, a soil sample may be compacted at optimum moisture content in a compaction mould. Then specimen for the direct shear test could be obtained using the correct cutter provided. Alternatively, sand sample can be placed in a dry state ...

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