Assignment

A soil profile is shown in the figure below.

Required:

Calculate the effective stress, neutral stress, and total stress at the bottom of the clay layer $($point B$).$

Soil Profile Details:

The water table is located $3$ meters below the ground surface.

The first layer consists of $7$ meters of sand with a unit weight $()$ of $18k\frac{N}{m^3}$ above the clay layer.

The clay layer has a thickness of $4$ meters and a unit weight $()$ of $20k\frac{N}{m^3}.$

Below the clay layer, bedrock is present.

Questions:

What is the total stress at point $B?$

Calculate the neutral stress $($pore water pressure$)$ at point B$.$

Determine the effective stress at point $B.$