水中冲击波对混凝土结构破坏的实验研究

利用实验方法研究浅层水中冲击波与混凝土结构的相互作用,探讨混凝土结构受水中冲击波作用的破坏机制。研究表明:浅层水中爆炸冲击波对混凝土结构的作用体现在冲击压缩和拉伸两个方面。由于水介质的流动性和各向同性,混凝土结构受冲击波的围压作用,使混凝土材料处于多向应力状态。分析结果表明:多轴应力状态是导致混凝土材料失效和断裂的最根本原因。

Damage Analysis of Concrete Structure by Underwater Shock

The interaction of shallow water shock waves and concrete structure was investigated by field explosion experiments,and the damage mechanism of concrete material under shallow water shock waves was discussed.The experimental and analytical results showed that the function of shallow water shock waves to concrete structure was involved in compression and tension of stress wave in the concrete structure.Due to the fluidity and isotropy of water material,the concrete structure was functioned by ambient pressures.The concrete structure was in multi-axial stress states,and the multi-axial stress states was the key function of failure and fracture of concrete material under shallow water shock waves.