Liquefaction of saturated silt is still an important topic remaining in geotechnical earthquake engineering besides liquefaction of sands.The risk of liquefaction and associated ground deformation can be reduced by various ground-improvement methods including the stone column technique.The effectiveness of stone columns for the prevention of soil liquefaction during an earthquake is often threefold:densification

drainage and the reduction of the total cyclic shear stress in the soil.However

there are obvious difference of characteristics of stone columns liquefaction resistance between in saturated silts and in sands. In this paper

a detailed review on effectiveness of densification

drainage and reinforcement of stone columns for the resistance of soil liquefaction during earthquakes is presented.The suggestions are offered for some problems worthy of further study.