Civil Engineering - Soil Mechanics and Foundation Engineering - Discussion

In a non-cohesive soil in the passive state of plastic equilibrium, the correct condition is:

The major principal stress is horizontal.

This scenario is typical for passive earth pressure conditions in soil mechanics, where the soil is resisting lateral movement, and the major principal stress tends to be horizontal (acting along the direction of the wall or structure).
The minor principal stress would then be vertical, which aligns with the gravitational direction.

Thus, the typical stress state is:
- The major principal stress is horizontal.
- TheMinor principal stress is vertical.

Both A and B are correct.

Yes, A and B both are right.

A & B are both right.

Option C will be correct.

How? Explain me, please.

Both A and b are correct.

It should be A & B.

According to me, A and B both are correct.

Deposit variability:

Because of variations in soil types, gradations, particle arrangements, and dry density values, the effective friction angle is rarely uniform with depth. It takes considerable judgment and experience in selecting an effective friction angle.

Thanks @Aamir.