Question

The figure below shows three parallel strips foundation with 2.4 m, 1.8 m, and 2.8 m wide and 4.6 m apart from center founded at 1.4 m depth transmit contact pressure of 270 kPa, 190 kPa, and 230 kPa respectively. Using the table of influence factor, calculate the intensity of vertical stresses due to combined load beneath the center of each footing (at points A, B, and C) at depth of 5.0 m below the ground surface. (Ans: 121.25 kPa; 99.75 kPa; 103.10 kPa)

Answer 1