Weak soils,such as soft clay and loose sand,have a poor bearing capacity,making them incapable of bearing the load of superstructures that will be imposed on them.As a result,engineers must have a solution to th...Weak soils,such as soft clay and loose sand,have a poor bearing capacity,making them incapable of bearing the load of superstructures that will be imposed on them.As a result,engineers must have a solution to the issue of poor bearing capacity in weak soils before embanking into building on them.This paper reviewed the use of stone columns,piled rafts,and geogrids for improving the bearing capability of weak soils.Important findings from recent research are also discussed.From the review of the previous researcher’s findings,it was found that modelling approaches such as physical modelling(full scale,centrifuge,laboratory scale)and numerical modelling are used to study bearing capacity improvement.展开更多
Stone column is one of the soil stabilizing methods that is used to increase bearing capacity and decrease the settlement of soft soils.Reinforced and unreinforced granular blankets are now being utilized to overcome ...Stone column is one of the soil stabilizing methods that is used to increase bearing capacity and decrease the settlement of soft soils.Reinforced and unreinforced granular blankets are now being utilized to overcome the problems of soft soils.In this research,the bearing capacity of stone columns,granular blanket,and a combination of both methods in reinforced and unreinforced modes were studied using scaled physical models.Results show that using granular blanket,stone column,and combination of both improves bearing capacity of soft soils.Using geogrid as the reinforcement of granular blankets and geotextile as stone-column encasement increases the efficiency of granular blankets and stone columns significantly.Additionally,in the case of using geotextile around the stone column,the stress concentration ratio of the stone column will increase as well as its rigidity and bearing capacity.展开更多
文摘Weak soils,such as soft clay and loose sand,have a poor bearing capacity,making them incapable of bearing the load of superstructures that will be imposed on them.As a result,engineers must have a solution to the issue of poor bearing capacity in weak soils before embanking into building on them.This paper reviewed the use of stone columns,piled rafts,and geogrids for improving the bearing capability of weak soils.Important findings from recent research are also discussed.From the review of the previous researcher’s findings,it was found that modelling approaches such as physical modelling(full scale,centrifuge,laboratory scale)and numerical modelling are used to study bearing capacity improvement.
文摘Stone column is one of the soil stabilizing methods that is used to increase bearing capacity and decrease the settlement of soft soils.Reinforced and unreinforced granular blankets are now being utilized to overcome the problems of soft soils.In this research,the bearing capacity of stone columns,granular blanket,and a combination of both methods in reinforced and unreinforced modes were studied using scaled physical models.Results show that using granular blanket,stone column,and combination of both improves bearing capacity of soft soils.Using geogrid as the reinforcement of granular blankets and geotextile as stone-column encasement increases the efficiency of granular blankets and stone columns significantly.Additionally,in the case of using geotextile around the stone column,the stress concentration ratio of the stone column will increase as well as its rigidity and bearing capacity.
