EXPERIMENTAL INVESTIGATION ON BEHAVIOUR OF ECCENTRICALLY LOADED MODEL FOOTING ON WEAK SOIL

Abstract

Foundation in simple term is a part of structure through which load is finally transmitted to the soil. Settlement of foundation is an important criteria to understand the failure of foundation. In eccentrically loaded footing the settlement observed is different from concentric loaded footing hence it becomes important to observe the change in settlement due to variation in load eccentricity. Weak soil is a problematic condition on field as settlement observed is large hence geogrid material layer is reinforced at a suitable depth to observed the change in settlement. In the present study eccentric load is applied on a rectangular model footing at different values of eccentricity and by placing geogrid layer at different depth below the footing in weak soil. A uniformly increasing load is applied at a particular load eccentricity & for a geogrid layer and the settlement is noted for different load values. As a result the settlement observed in case of reinforced case is less than unreinforced case and with increase in eccentricity upto kern boundary the nature of settlement observed is different from the case when the load is applied outside the kern boundary.