A continuous foundation is shown in Figure 3.19 if the load eccentricity is 0.5 ft, determine the ultimate load, Qult, per unit length of the foundation.

A sallow square foundation for a column is to be constructed on the sand. The foundation must carry a net vertical mass of 102000 kg, the standard penetration number (N60) obtained from exploration are given in Figure 5.38. Assume that the depth of the foundation will be 1.5m and the tolerable settlement is 25mm. Determine the size of the foundation.