为评估装药埋深对机场跑道爆破毁伤效应的影响,采用非线性动力分析程序对机场跑道进行了爆炸破坏数值模拟,对比分析了不同埋深下爆炸漏斗坑尺寸、爆腔半径、靶体各层损伤区域分布情况,计算表明,存在一个最佳爆深使得爆破漏斗坑体积达到最大值。初步给出了爆炸破坏参数与装药埋深的关系。

In order to study the damage effect of runway blasting at different depth, the numerical simulation of blasting was carried out to estimate different blasting depth at runway with AUTODYN software. Under the simulation conditions, it was revealed that the depth of charge was a factor controlling the damage radius and crater blasting volume. The calculations of fragmentation indicated that the average damage radius and crater blasting volume increased when the depth of charge increased as observed in practical blasting. The simulation shows that at the optimal blasting depth of the explosive charge, the crater blasting volume reaches the maximum. The relation between the depth of charge and damage parameter has been obtained.