Model test study on transfer law of dynamic stress produced by dynamic compaction

Dynamic compaction method reinforced foundation and has advantages in civil engineering: obvious effect, simple equipment, construction is convenient, economy and easy, etc. But the adverse effects that the dynamic compaction vibration on environment and building are also serious. In this paper, the horizontal and vertical earth pressure transfer laws were got through the model test. And the horizontal and vertical earth pressure decaying formulas, which consider ramming energy and distance to tamping point two factors, were fitted. The research results provide theoretical basis for further study of the effect of dynamic stress produced by the dynamic compaction to surrounding buildings.