TNT当量法估算地铁恐怖爆炸中的炸药当量

Estimation and Evaluation of Terror Explosion Equivalent in Underground by TNT Equivalent

面对全球愈演愈烈的爆炸恐怖袭击,地铁隧道遇到的威胁越来越大。通过收集整理全球范围内针对地铁隧道的爆炸恐怖袭击事件,结合地铁隧道自身结构的特点和安全防范措施,给出在地铁内实施爆炸的爆炸物的特点和爆炸物TNT炸药当量的标准,利用爆炸冲击波峰值超压计算公式和标准TNT炸药表面爆炸空气冲击波曲线对相应当量爆炸物的超压进行计算,进而评价其杀伤力和破坏力。研究成果可为地铁结构应对恐怖爆炸袭击应急预案的制定提供依据。

The threat in the underground is bigger than before as the bombing terrorist attacks raged in the world. Features of explosive and standard of TNT equivalent weight can be given by collecting the terror bombing attacks in the underground space on a global presence, and combining it with the characteristics of underground structure and the preventive measures. Peak overpressure formula of computation of explosive blast and the air blast curve when the normal TNT surface bursting can be used to calculate the overpressure of explosive, and in further to esti mate its lethality and destructive power. The research results can be regarded as basis for making contingency plan so as to coping with terror bombing attacks.