Improvement of Marine Clay Performance Using Geo-Textile Encased Stone Column

The use of stone columns is a popular ground reinforcing technique for flexible structures like raft foundations,\ud oil storage tanks, embankments etc. The stone column technique is a cost effective method of improving the\ud strength parameters like bearing capacity and reduce the settlements. When stone columns in soft soil are\ud loaded, it undergoes excessive bulging due to low lateral confinement. To avoid this excessive bulging, stone\ud column is encased with geotextile. In the present study tests were performed with and without encasement of\ud geotextile. Stone column is encased with geotextile with different lengths of encasement like L/4, L/2, 3L/4 &\ud L. The tests indicate that the bearing capacity increases with increase of encasement length.\u