Example Problem 8.1 An oil tank is to be constructed at a site that contains a thick deposit
of saturated and overconsolidated clay. Assume that when the cohesive soil is subjected to the
loading, it will still be in an overconsolidated state. Further assume that the clay beneath the
oil tank can be represented by the triaxial compression test data shown in Fig. 3.30. The oil
tank will have a diameter of 30 ft (9.1 m) and when the oil tank if full of oil, it will subject the
ground surface to a stress of 1000 psf (48 kPa). Calculate the initial settlement si of the oil tank
assuming a relatively flexible foundation constructed on an elastic half space of infinite depth.