Dynamic Compaction (DC)

Dynamic compaction (DC) is a mechanical ground improvement process used to provide rapid densification by means of short-term external forces caused by impacts. It is predominantly used to densify granular natural or fill soils with percentage of fines (i.e., particles less than 63 μm) not exceeding 20 to 25%. Soil strength is increased while compressibility and settlements are decreased as a result of the densification. In addition, dynamic compaction also increases the cyclic stress resistance of cohesionless soil and hence can be used as an effective method for anti-liquefaction treatment.

DC Mechanism