水体防爆墙和混凝土防爆墙对爆炸冲击波的消减效应

Mitigation effects of explosion-proof water walls and explosion-proof concrete walls on blase shock wave

对水体防爆墙和钢筋混凝土防爆墙两种防爆墙抵抗地面爆炸冲击波的情况进行了数值模拟,对比了两种防爆墙的消波效果,分析了两种防爆墙条件下各物质间能量转化的规律。,两种防爆墙对地面爆炸冲击波均具有很强的消减作用,水体防爆墙在与爆炸波相互作用的过程中获得的总能量峰值比混凝土防爆墙大一个量级。水体防爆墙自身耗散掉爆炸产物和冲击波的能量有限,更多的是依靠水体的质量和惯性实现防爆的目的。

The mitigation effects of explosion-proof water walls and explosion-proof concrete walls on blast wave were simulated, respectively. The mitigation effects of the two explosion-proof walls on blast wave were compared and the energy conversion among different mediums under the two walls were analyzed. Finally, the main factors influencing the mitigation effect of explosion-proof water walls were discussed. The results showed that both of the two types of explosion- proof walls have a strong ability to mitigate the shock wave; the peak total energy of explosion-proof water walls in interaction process with blast wave is a rank of magnitude higher than that of explosion-proof concrete walls, the water wall only dissipates limited energy of explosion and shock wave, the water wails rely more on mass and inertia of water body to achieve the purpose of explosion-proof; the mass ratio of water and explosive has a certain influence on the mitigation effect of explosion-proof water walls, the larger the mass ratio of water and explosive, the stronger the mitigation effect of water body on the impulse of shock waves.