Principle of Effective Stress, Capillarity and Permeability

Numerical

Total Stress = Sum of all the stresses above a point.

Neutral Stress = Hydrostatic Pressure above a point.

Effective Stress = Total Stress - Neutral Stress

Few Numerical are given below based on these concepts.

Numerical 1 :-

Numerical 2 :-

In respect of these two numerical, it can be understood that,

1. A rise in water table results in the decrease of effective stress.

2. Lowering of water table results in increase of effective stress.