Finite element analysis of dynamic compaction in soft foundation

Three-dimensional finite element analysis model was built by the quasi-static force method based on reconnaissance data of dynamic compaction in soft foundation. The ground was consolidated by dynamic compaction method, the variety rules between the number of tamping passes and the crater settlement were confirmed by analysis of ground deformation and pore pressure. The numerical simulation results of dynamic compaction show that the simulation results are in accord with the field test results on the whole, the numerical simulation can explain all kinds of phenomenon and can serve for construction design of dynamic compaction.