Dynamic replacement

No, because the initial pounding of the platform is generally sufficient to form the crater that initiates the dynamic replacement pillars. After filling this crater, pounding drives the “compacted plug” into the soil, which then serves as the basis for the formation of the rest of the pillar.

The large diameters (2 to 2.5 meters) and low slenderness ratio of dynamic replacement pillars make them suitable for treating very loose, waterlogged and highly organic soils. If need be, preloading can be carried out to reduce residual settlement.