Problems for Practice

Situation $7.$

A $20m$ thick submerged saturated clay layer has a moisture

content of $57\%.$ The specific gravity of the solids is $2\mathrm{.}84.$

Determine the unit weight of clay:

$(16$:$7k\frac{N}{m^3})$

Determine the total vertical stress at the bottom of the

clay layer in kPa. $(334$kPa $).$

Determine the effective vertical stress at the bottom of

the clay layer in kPa. $(138$ kPa$).$