【摘要】 装药位置对爆炸作用有重要影响,是爆炸工程和战斗部终点效应研究中的课题之一。本文通过数值计算来模拟半无限的岩石介质中炸药对在地下的10m处拱形工事的毁伤情况。研究了在相同装药质量情况下装药位置对毁伤情况的影响,得到地下爆炸载荷下岩石工事周围的动力学响应,以及装药为2kg、爆源距工事顶端分别为3、5、7m时爆炸对工事顶部产生的塌落高度。更多还原

【Abstract】 Being of important influence on the effect of detonation,the location of charge has been taken as one of the objectives in studying detonation project and terminal effect. In this paper the damages to an arch defense work ten meters below the ground caused by explosive in the half infinite rock were studied by means of numerical simulation. Factors influencing the damages,for instance,the different locations of charge with the same weight of explosive, were investigated,resulting in the understanding of the rock’s response to the surrounding dynamics produced by the underground explosion. The collapsing heights of the arch top being 3,5 and 7m respectively away from the detonation source were worked out at 2kg explosive loading.更多还原