Question: In a shear box test on a sand sample, the stresses at failure were = 4 0 kPa, = 5 0 kPa. By graphical construction

In a shear box test on a sand sample, the stresses at failure were =40 kPa, =50 kPa. By graphical construction find the pole of the mohr circle and the magnitudes of the principal stresses in the sand . Also find the angle between the shear plane and the major principal plane.

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