What is the net ultimate bearing capacity of a footing 2.5 m × 2.5 m built on a sand of unit weight 16 kN/m3 and having an angle of friction of 25°. The depth of the footing is 1.5 m below the ground surface. Nq = 5.6 and Nr = 3.2.
1
161.6 kPa
2
216 kPa
3
120 kPa
4
108 kPa