ABSTRACT
Example 13.10 It is proposed to construct an overhead tank at a site on a raft foundation of size 8 x 12 m with the footing at a depth of 2 m below ground level. The soil investigation conducted at the site indicates that the soil to a depth of 20 m is normally consolidated insensitive inorganic clay with the water table 2 m below ground level. Static cone penetration tests were conducted at the site using a mechanical cone penetrometer. The average value of cone penetration resistance qc was found to be 1540 kN/m2 and the average saturated unit weight of the soil = 18 kN/m3• Determine the immediate settlement of the foundation using Eq. (13.22). The contact pressure qn = 100 kN/m2 (= 0.1 MPa). Assume that the stratum below 20 m is incompressible.
