The stresses which produce excessive deformations are termed as failure stresses.
Geostatic Stress or Over Burden Pressure
- Settlement of foundations
- Stability (bearing Capacity) of foundations
- Stability of Slopes
- Stability of Retaining Structures
Types of Stresses
Neutral Stress (Pore Water Pressure)
It is termed as neutral stress since it acts equally in all directions.
If the effective stress is zero, the soil mass is in a critical (unstable) condition.
γ_sub or γ_’ is the submerged or buoyant unit weight of the soil.