What is the total, effective, and pore pressure in kN/m2 at a depth of 15 m below the bottom of a lake 6 m deep? The bottom of lake consists of soft clay with thickness of more than 15 m. The average water content of the clay is 40% and the specific gravity of soils may be assumed to be 2.65 and \(\gamma_w\) = 9.81.
1
265.05, 117.90, 147.15
2
323.90, 117.90, 206.00
3
176.76, 29.61, 147.15
4
265.05, 59.05, 206.00