Dynamic Replacement (DR) Columns - Brochure

Dynamic replacement is an extension of the Dynamic Compaction process that is applicable for use on highly compressible and weak soils. In this application (DR), the tamping energy drives imported, or site won, granular material down into the compressible soils to form large diameter soil reinforcement columns. Additional improvement can be obtained in the underlying layers through the transmission of the DC energy to depth. This method thus combines advantages of both Dynamic Compaction and stone columns by creating large-sized Dynamic replacement inclusions with high internal shear resistance to promote compaction, and consolidation and reinforcement of the soils.