Q. The major principal stress in an element of cohesion-less soil within the backfill of a retaining wall is (Solved)
1. Vertical if the soil is in an active state of plastic equilibrium
2. Vertical if the soil is in a passive state of plastic equilibrium
3. Inclined at 45° to the vertical plane
4. None of the above
- a. Vertical if the soil is in an active state of plastic equilibrium