典型地铁车站内爆炸致人员伤亡区域的预测研究

地铁车站遭受恐怖爆炸袭击,会造成大量的人员伤亡和经济损失,目前我国关于地铁内爆炸分析的研究资料较少。利用动力有限元计算软件LS-DYNA,对典型地铁车站结构内爆炸进行三维数值模拟,分析其在不同药量作用下冲击波流场分布规律,绘制了站台板位置处冲击波超压峰值等压线图,搜集整理国内外关于冲击波对人员损伤的评价准则,利用相关评价准则,对地铁遭受恐怖爆炸袭击时人员伤亡进行评估,为地铁车站的抗爆设计和反恐预案等提供参考依据。

ESTIMATION OF CASUALTY AREAS IN SUBWAY STATION SUBJECTED TO TERRORIST BOMB

When a subway station subjected to a terrorist bomb,the damage should be serious.By using the numerical simulation finite element software LS-DYNA,the dynamite explodes inside a typical subway station has been simulated.The results have given the flow field distribution of blast wave inside the station,and the isobar of blast wave overpressure at the station platform.Comparing all the criteria about people subjected to blast loading,casualties in the subway station are estimated.Different areas are divided according to corresponding injured levels.The research may be useful for subway station anti-explosion design.