a) Explain with sketches the direct shear test and how shear paramete…
Previous year question for Geotechnical Engineering.
Question
a) Explain with sketches the direct shear test and how shear parameters are determined.
b) A consolidated drained (CD) triaxial test was conducted on a normally consolidated clay. The following results were obtained:
Cell pressure $(\sigma_3) = 100\text{ kPa}$
Deviator stress at failure $= 160\text{ kPa}$
i) Calculate the major principal stress $(\sigma_1)$.
ii) Determine the cohesion ($c$) and angle of internal friction $(\phi)$ if the test is repeated at another cell pressure of 200 kPa and failure occurs at deviator stress of 250 kPa.
iv) Plot the Mohr's circles for both tests.
- Year: 2022
- Subject: Geotechnical Engineering
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