露天深孔不同位置水间隔装药爆破数值模拟

Open Water Deep Hole Position Interval Blasting Numerical Simulation

针对深孔不同位置水间隔装药方式最佳的问题,运用数值模拟软件LS-DYNA,分别模拟了上部水间隔装药、中部水间隔装药、下部水间隔装药,并分析比较了这3种不同位置水间隔装药条件下的压力衰减分析、爆破震动分析及孔壁峰值应力。综合分析得知:在减震效果、降低大块率方面,中部水间隔装药结构是最为理想、合适的装药结构。

The numerical simulation software LS-DYNA was used to simulate the upper water separation drug, the middle water interval drug and the lower water spacer drug respectively. The results were analyzed and compared with the three pressure decay analysis, blasting vibration analysis and peak wall stress in different positions. The comprehensive analysis shows that the structure of the middle water spacer is the most ideal and suitable charge structure in the damping effect.