DCM Combined With Vacuum Dewatering Treatment and Extended Bottom Rotary Jet Grouting Pile Applied to Reinforce the Saturated Soft Clay Foundation

DCM(dynamic compaction method) combined with Vacuum dewatering treatment and extended bottom rotary jet grouting pile is adopted to reinforce saturated soft clay foundation. The reinforcement mechanism is discussed. Combining with a reinforcement project in J iangsu province, the in-situ test results demonstrate that the method can fully exert the advantage of DCM, vacuum dewatering and rotary jet grouting pile. It shows that this method saves both time and money,and the pre-subside is controllable too.This method proposes a new way for the treatment of the saturated soft clay foundation in the coastal areas and improves in approcaches to the treatment of saturated clay.