$(3)$ A layer of clay with a thickness of $10$ meters, which is drained from the top and bottom in two directions, is subjected to the effect of an extensive load with an intensity of $100$ kilopascals. If the characteristics of the soil are as follows and the initial pore water pressure

distribution is uniform, it is desirable to determine the pore water pressure distribution two days after applying the load.

$0\mathrm{.}4\frac{\text{d}\text{i}\text{d}\text{i}}{a{z}^{2}at}=$

$c_v=0\mathrm{.}4\frac{m^2}{?}$ day

$))=(0,t))=(10,t$

$))=(0$