地铁口部爆炸冲击波传播规律与超压荷载研究

Study on propagation of blast wave and the overpressure load subjected to metro entrance explosion

通过模拟计算研究地铁人员出入口爆炸冲击波的传播规律,研究表明:爆炸冲击波在地铁车站口部的半封闭空间存在多次反射,部分结构遭受多次冲击作用,防护密闭门和临空墙承受非平面波超压荷载作用。研究结果可供地铁等地下工程人员出入口口部设防技术标准和防护设备设施设计参考。

The propagation law of blast wave at the metro personnel entrance and exit is simulated.The results show that there are multiple reflections of blast wave in the semi-enclosed space at the entrance of metro station,some structures being subjected to multiple shocks,and the airtight blast door and adjacent walls being subjected to non-plane wave overpressure load.The results of the study can provide metro and other underground engineers with technical standards of entrance and exit department and design reference of protective equipment and facilities.