A continuous foundation with a width of 1 m is located on a slope made of clay soil. Refer to Figure 5.19 and let Df 5 1 m, H 5 4 m, b 5 2 m, g 5 16.8 kN/m3, c 5 cu 5 68 kN/m2, f 5 0, and b 5 60°.
a. Determine the allowable bearing capacity of the foundation. Let FS 5 3.
b. Plot a graph of the ultimate bearing capacity qu if b is changed from 0 to 6 m.