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Dynamic compaction (DC), also known as dynamic deep compaction, was advanced in the mid-1960s by Louis Menard. The process involves dropping a heavy weight on the surface of the ground to compact soils to depths as great as 12.5 m. The purpose of this method is to reduce foundation settlements, reduce seismic subsidence and liquefaction potential, permit construction on fills, densify garbage dumps, and reduce settlements in collapsible soils. This method is most effective in permeable, granular

DYNAMIC SOIL COMPACTION Dynamic soil compaction (also called dynamic compaction) is a method used to strengthen loose or weak soils by dropping a heavy weight repeatedly on the ground surface. The force from these impacts compacts the soil particles, making the ground stronger and more stable. HOW IT WORKS A heavy steel weight — often between 10 to 40 tons — is lifted by a crane and dropped from a height of about 10 to 30 meters. When it hits the ground, the impact energy travels through the soi