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A smooth rigid retaining wall moves as shown in the sketch causing the back fill material to fail. The black fill material is homogeneous and isotropic, and obeys the Mohr-Coulomb failure criterion. The major principal stress is
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- parallel to the wall face and acting downwards
- normal to the wall face
- oblique to the wall face acting downwards
- oblique to the wall face acting upwards
Correct Option: B
Retaining wall moves towards back fill ie, positive earth pressure
ie, σh > σv.
