Question

The deformations of soils under a circular or square footing are

Answer 1

On soil deformation balance / footing yields, all the dirt particles move parallel to the plane which is opposite to the inside line of the balance. Then again, if the dirt help of a square or round balance yields, the dirt particles move radially and not in parallel. So bearing limit increases. It is presumably identified with the volume of the mass under the footing / balance that should be uprooted to prompt disappointment and it's moment of inertia in respect to the footing focus point.