火车站-地铁地下换乘区域爆炸恐怖袭击数值模拟及人员伤亡区域分析

Numerical Simulation of Terrorist Attacks and Analysis of Casualties in Underground Transfer Area of Railway Station and Subway

炸药在地下空间爆炸时,由于地下空间的密闭性,冲击波传播规律极为复杂,经过反射面的反射作用使得冲击波的超压急剧加强,影响范围达数百米。针对某火车站与地铁的地下换乘处,利用LS-DYNA有限元程序对该处炸弹爆炸进行数值模拟,研究冲击波的传播规律并使用超压准则进行伤亡区域分析,以支持地下空间反恐、应急救援工作。

When the explosive explodes in the underground space,due to the impermeability of the underground space,the propagation law of the shock wave is extremely complex,and the overpressure of the shock wave is strengthened dramatically through the reflection effect of the reflecting surface,and the influence range reaches several hundred meters.Numerically simulates an underground transfer station between a railway station and a subway station with the ls-dyna finite element program,studies the propagation law of the shock wave,and analyzes the casualty area with the overpressure criterion,in order to support the anti-terrorism and emergency rescue work in the underground space.