Numerical simulation on variation of density of the soil compacted by explosion

There is a new blasting technology which utilizes the explosion effect of the explosive to compact the soil to form the underground space with the non compacted material as the cushion. To analyze the variation of the parameters of the soil, the mechanical model and numerical method of the explosion compacting the cushion and soil are established. The profile of the density variation of the soil under explosion effect and the developing process of the explosion cavity are acquired by simulation.