石灰岩中不同埋深爆炸自由场直接地冲击参数的预计方法

Prediction method of the direct ground shock parameters of explosion at different buried depths in free field of limestone

通过现场实验,研究了石灰岩中常规装药不同埋深爆炸自由场直接地冲击参数的传播规律。采用了等效当量埋深系数的工程处理方法来描述不同爆炸埋深地冲击效应,并给出了石灰岩中不同埋深爆炸应力等效当量埋深系数和质点加速度等效当量埋深系数的计算公式,从而得到了石灰岩介质中不同埋深爆炸地冲击参数随比例距离的预计公式。

Through the field tests,the propagation regularity of the direct ground shock produced by the explosion of conventional charge at different buried depths in free field of limestone was explored.The direct ground shock effect of explosion at different buried depths was described by the processing engineering method called the buried depth coefficient of equivalent energy.The buried depth coefficient of equivalent energy of stress and particle acceleration of explosion at different buried depths in limestone were formulated,which could be the prediction formula of the ground shock parameters of explosion at different buried depths in limestone media according to the scaled distance change.