During soil consolidation process, when t > 0, how do soil effective stress,pore pressure and soil volume change?

During the soil consolidation process, when time (t) is greater than zero, the following changes occur:

1. Soil Effective Stress: The effective stress in the soil increases. This is because the water in the soil pores starts to dissipate, transferring the load from the water to the soil grains. As a result, the soil grains come closer together, increasing the effective stress.

2. Pore Pressure: The pore pressure decreases over time. As the water dissipates from the soil pores, the pressure exerted by the water decreases. This is a gradual process and continues until all excess pore water pressure is dissipated.

3. Soil Volume: The volume of the soil decreases. As the water dissipates and the load is transferred to the soil grains, the soil compresses and its volume decreases. This process is known as consolidation.

In summary, during the soil consolidation process when t > 0, the soil effective stress increases, the pore pressure decreases, and the soil volume decreases.