GEO REINFORCED STONE COLUMN TECHNIQUE FOR SOFT CLAY SOIL IMPROVEMENT-A REVIEW

A very fast development of Infrastructures sector i.e. construction of mega structures like Express highways and railways and tunnels, bridges and tall buildings in all parts of the world, the availability of suitable ground for the construction of civil engineering mega structures becomes a challenge for today's geotechnical engineers. There is various ground improvement techniques are present to strengthen the weak and soft soils based on the type of application. One of the most extremely used ground improvement method is a Stone column technique for soft clay soils. Where the bearing capacity of soft soils can be improved and also the stability of structure and reduces the settlement issues up to some permissible limits. This method was adopted in European countries since 1950s. But now days, the utilization of geo synthetic materials are very popular because of their various multi functions based on the applications like reinforcement, separation, filtration and confinement, containment etc. This article presents a review of previous experimental studies on the performance of unreinforced soft soils improvement the bearing capacity with reinforced sand bed over stone column. The paper explores the new ideas where more research can be done by using geo reinforced stone column technique to improve the bearing capacity and stiffness of soft clay soils.