STONE COLUMN METHOD
Stone Column or usually called with Vibro Replacement is a combination of vibroflotation with a gravel backfill resulting in stone columns, which not only increases the amount of densification, but provides a degree of reinforcement and a potentially effective means of drainage. It effective to apply in liquefaction soil, since it can prevent the construction damage.The compaction of the in-situ soil is the most important positive effect of stone columns for the prevention of liquefaction in granular soil layers.