An Experimental Study on Performance of Stone Column in Layered Soils through Unit Cell Concept

Improvement of ground is necessary every now and there in projects. Due to rapid growth of population and urbanization, demand for land has been increased abundantly. Because of this land scarcity high raised buildings are constructed in less areas. Due to this heavy constructions the amount of load transferred to soil increases which results in requirement of higher bearing capacity of soil. Stone column is one of the widely used technique. Stone column method is used to densify the soft clays. It involves adding vertical column into the ground to a depth of at least 4m below the ground surface. A layer of compacted gravel can then be put over the top of the columns. The thickness of top layer considered for study are 2mm, 4mm, & 6mm, of stone column for the optimum value among the above patterns is studied with different diameters of stone column.