AN EXPERIMENTAL STUDY ON MARINE CLAY PERFORMANCE USING REINFORCED STONE COLUMN WITH LIME SOIL COLUMN

Stone columns have proved to be a useful technique for supporting flexible structures resting on soft soils. However, in the case of very soft soils, stone columns have encountered excessive settlements due to insufficient lateral resistance offered by the soft soil against bulging of the columns upon loading. The bulging may be reduced to a great extent by reinforcing the columns by encasing them with geo-textile. In this proposed work, to improve the strength parameter of the week soil, the silica manganese slag is used as the column material along with the induced lime soil. To verify the strength parameter of the column, encasement is provided at different lengths of D, 2D, 3D & 4D. The load carrying capacity of the reinforced stone column with reinforcement length of 4D has increased by 147% compared to the plain clay bed.