BEARING CAPACITY IN EXPANSIVE SOILS

Abstract

To tackle 1. 40 problems associated with swelling coils, a solution would be to adopt methods which reduce/eliminate swelling. One way of reducing swelling is to choose the foundation pressure and the surcharge pressure so as to counterbalance the/swelling pressure. But safety against shear may not be ensured. Thus the desinger is faced. with a dilema whether to design the footing based on the bearing capacity at the Li.mt of construction of the soil which might result in swelling at a latter date 4=141. or to design such as to exert pressures which would. counterbalance the swelling when it occurs but may cause shear failure due to the low strength of the existing partially swelled soil. In order to solve the above problems, 44e laboratory investigations have been carried. out, the result of which are discussud in the thesis. The critical review of the existing analytical work suggested that there 0. istneed to develop an analytical approach to find out the bearing capacity of expansive soil. The some has been derived.