GATE 2023 Soil Mechanics & Foundation Engineering Quiz 66

Based on drained triaxial shear tests on sands and clays, the representative variations of volumetric strain (ΔV/V) with the shear strain (γ) is shown in the figure.

Choose the CORRECT option regarding the representative behaviour exhibited by Curve P and Curve Q.

Which of the following statement(s) is/are correct?

Which of the following is/are correct for Unconsolidated Undrained (UU-test) triaxial test.

In a drained triaxial compression test conducted on dry sand, failure occurred when deviatoric stress was 218 kN/m² at a confining pressure of 61 kN/m², which of the following statements is/are correct?

A given saturated clay is known to have total strength parameters of C=10 kPa and Φ = 28⁰. A sample of this clay was brought to failure quickly so that no dissipation of the pore water could occur at failure it was known that σ₁ = 60 kPa, σ₃ = 10 kPa and u = 20 kPa.

The normal stress (in kPa) on the failure plane is?

A sample of saturated cohesionless soil tested has an angle of internal friction of 30^o. The deviator stress that may cause failure for confining pressure of 200 kPa may be