Calculate the ultimate bearing capacity considering the following: A strip footing, 2 meters wide A square footing 3m by 3m A circular footing 3m in diameter. All footings are located at the ground...

Calculate the ultimate bearing capacity considering the following:

1. A strip footing, 2 meters wide


2. A square footing 3m by 3m


3. A circular footing 3m in diameter.

All footings are located at the ground surface and groundwater level is at the ground surface. The soil is coarse grained with saturated unit weight of 19.8 kn/m³
and angle of internal friction of 25 degrees.