双药包水下爆炸相互作用研究

Study on the Interaction of Underwater Explosion between Double Explosive Charges

用两发瞬发电雷管模拟双药包于爆炸水池内同时起爆,初步探讨了有限水域内的双药包爆炸相互作用现象。实验发现,双药包的爆炸冲击波波阵面相互碰撞,在装药连线方向部分被抵消,而装药之间的中垂面附近发生波的叠加,且气泡脉动的相互作用使彼此的脉动周期增大。此外,由于两发雷管自身性能差异难以同步爆炸,使水中冲击波和气泡脉动的相互作用发生变异,这在水下爆破工程中实际存在,值得关注。

By using two detonators to simulate double explosive charges initiated simultaneously in blasting pond, the interaction of the explosion between them was investigated under limited water field. The experimental results show that the explosive shockwave interfaces are partially counteracted along the line connecting of the double explosive charges and superposed nearby the perpendicular bisector when they collided, and the interaction of bubble pulsating makes their pulsating period longer. Besides, because of the performance differences of the two detonators, the difficulty of synchronization explosion makes the interaction of the underwater shockwave and bubble pulsating altered which exists factually in underwater blast project and should be paid more attention to.