A square footing was constructed with the dimensions shown below.\ le at

2.8m

\ Stiff clay from 0 to

4.6m

\

\\\\gamma _(bulk )=18.0k(N)/(m^(3))\ \\\\gamma _(buoy )=9.2k(N)/(m^(3))\ c_(c)=0.214\ e_(i)=0.88

\ Sandstone at

4.6m

from original ground surface\ a. Calculate the thickness

(H)

and the midpoint depth for the soil layer beneath the footing (stiff clay). Note: the midpoint depth should be calculated from the base of the footing.\ b. Calculate the initial effective stress at the midpoint of the clay layer beneath the footing.\ Ground surface\ Sandstone at

4.6m

\ c. Calculate the final stress at the midpoint depth using the applied load shown on the diagram. Assume a cone-shaped load distribution with side slopes of

1H:2V

.\ d. Calculate the settlement of the clay layer. Assume that the settlement in the sandstone is negligible.

2. A square footing was constructed with the dimensions shown below. Stiff clay from 0 to 4.6m bulk=18.0kN/m3buoy=9.2kN/m3cc=0.214ei=0.88 Sandstone at 4.6m from original ground surface a. Calculate the thickness (H) and the midpoint depth for the soil layer beneath the footing (stiff clay). Note: the midpoint depth should be calculated from the base of the footing. b. Calculate the initial effective stress at the midpoint of the clay layer beneath the footing. c. Calculate the final stress at the midpoint depth using the applied load shown on the diagram. Assume a cone-shaped load distribution with side slopes of 1H:2V. d. Calculate the settlement of the clay layer. Assume that the settlement in the sandstone is negligible