Geotechnical Engineering-2 1. In a consolidated drained triaxial test, a specimen of saturated sand failed under an deviator stress of 250 kN/m2, when the cell pressure was 100 kN/m2 i)Solve for the shear stress on the failure plane and maximum shear stress at failure? ii)Solve for factor of safety with respect to shear strength on the plane of maximum shear stress? ii) Illustrate by drawing the Mohr circle for the failure stress condition. iv)Solve for ɸ′ and the theoretical inclination of the failure plane to the horizontal.

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Test for Determination of Shear Strength

The term shear strength is often associated with the soil. Shear strength is defined as the resistance to the deformation of soil particles due to the continuous action of shear stress. In short, shear strength is the maximum shear stress that a soil can sustain.