GATE Civil Engineering (CE) 2017 Shift 2 Solved Paper

Consider a square-shaped area ABCD on the ground with tis centre at M as shown in the figure. Four concentrated vertical loads of P = 5000 kN are applied on this area, one at each corner.

The vertical stress increment (in kPa up to one decimal place) due to these loads according to the Boussinesq’s equation at a point 5 m right below M is ________.