A a tri-axial test was carried out for the same siltstone material. It was fou...
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A a tri-axial test was carried out for the same siltstone material.
It was found out that the cohesion (C’) of the siltstone is 8 MPa. Determine the friction angle ϕ’ of the siltstone.
(Type your answer in degrees)
Hint:
Draw a Mohr circle for the failure state of the UCS test and then draw the Mohr-coulomb failure envelope for the siltstone in the same graph sheet.
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