Question $4$

For the soil profile shown in Figure $4\mathrm{.}1.$ determine the total stress, pore water

pressure and effective stress at points $A,B,C$ and $D.$

A laboratory consolidated test on the clay gave the following results:

Pressure $(k\frac{N}{m^2})$ Void Ratio

If the average effective stress on the clay layer is increased to $115k\frac{N}{m^2},$ what would

be the total consolidated settlement?.

a

$2$

$4r$

Fig. $4\mathrm{.}1$: Soil Profile of Sand and Clay