A group of friction piles is shown. The total load on the pile less the soil displaced by the footing is 1800KN. Lp = 1.5 m, L2 = 2 m, L = 10 m, t= 16 m. See figure below.
Compute for the overburden pressure, that is the effective
pressure at midheight of the consolidating clay layer in kPa.
Choices: 299.54, 186.56, 142.57, 176.32