Bauer Dynamic Compaction (BDC)

BDC (Bauer Dynamic Compaction) is particularly suited for increasing the relative density of non-cohesive granular soils and loose mixed soils with low fines content. The process involves dropping a heavy weight (pounder) repeatedly on the ground at regularly spaced impact points. The kinetic energy released on impact penetrates into deeper soil formations and, as a result of the forced rearrangement of the soil particles, leads to compaction. The degree of compaction depends on the mass of the drop weight, the drop height and the spacing of the impact points. BDC is mainly used on fill, demolition waste and building rubble, as well as soil formations with large voids (karst).