STUDIES ON THE EFFECT OF SPACING OF COIR GEOTEXTILE ON LIME STABILISED QUARRY WASTE COLUMN

Stone columns are massively used ground improvement technique. Installation of stone columns enhances the load carrying capacity and accelerates consolidation and thereby reduces settlement . The lateral confinements offered by the surrounding soil are inadequate to form the stone column, when installed in extremely soft soils. In such cases, the performance of stone column can be improved by lateral reinforcements. Here coir is provided as the lateral reinforcement. The present study investigates the load verses settlement response of various spacings of the coir geotextile reinforced lime stabilised quarry waste column. Four different spacings are adopted. The results revealed that the load ca rrying capa city of stone column is influeneced by the spacing of the reinforcemnt .