4-bore spiral cutting blasting FEM model is built up by LS DYNA software and the process of spiral cutting blasting with different bore depth and different charging coefficients are simulated and analyzed.

• 采用LS-DYNA商用有限元程序建立了4孔掏槽爆破的有限元模型,模拟分析了不同孔深条件下不同装药系数时的爆破掏槽过程。