响水化工厂爆炸TNT当量估算

为了使人们更清楚地了解爆炸的危险性,需要对爆炸事件的TNT当量进行计算,以2019·响水化工厂爆炸事件为例,对该爆炸事件的TNT当量进行了估算。在分析此次爆炸原因的同时,对比分析了多种TNT当量的计算方法,确定此次爆炸事故以建筑物的破坏程度计算TNT当量。根据爆炸事故现场建筑物的破坏情况,先确定出在爆炸周边不同距离处空气冲击波的超压范围,再运用萨道夫斯基公式计算出不同距离处不同TNT当量炸药爆炸产生的空气冲击波超压,将计算值与确定出的空气冲击波超压范围值进行对比,最终确定出爆炸事故的TNT当量。估算此次爆炸事故的TNT当量在400～500 t。

Estimation of TNT equivalent of explosion in Xiangshui chemical plant

In order to make people understand the danger of explosion more clearly, it is necessary to calculate the TNT equivalent of explosion. Taking the explosion of Xiangshui chemical plant in 2019 as an example, the TNT equivalent of the explosion event is estimated. While analyzing the cause of the explosion, the calculation methods of TNT equivalent are compared and analyzed, and the calculation method of TNT equivalent based on the damage degree of buildings is determined. According to the damage of buildings on the scene of explosion accident, the overpressure range of air shock wave at different distances around the explosion is determined, and then the overpressure of air shock wave generated by explosion of different TNT equivalent explosives at different distances is calculated by Sadov's Formula. The calculated value is compared with the determined value of overpressure range of air shock wave, and the TNT equivalent of explosion accident is finally determined. The TNT equivalent of the explosion accident is calculated between 400 and 500 t.