摘要
通过大型爆炸塔及坑道内爆炸试验,研究了TNT及两种典型高爆热复合炸药在不同距离测点处的冲击波超压的变化历程,对比分析了各类测点所获冲击波超压曲线的特征、超压峰值、比冲量的差异.结果表明,在爆炸塔及坑道环境中,地面测点所获压力曲线仅有一个峰值,D622和D343的超压峰值及比冲量均高于TNT,但随着爆心距的增加,其衰减速率也明显高于TNT;自由场测点所获压力曲线均呈两个峰值,且在坑道中由于多次反射叠加,使得第二个峰值明显高于第一个峰值,尤其是D343试样,其压力峰值及比冲量较TNT均呈现明显的优势.
The explosion test was carried out in large explosion towers and tunnels,The change course of the shock wave overpressure of TNT and two typical explosive thermal composite explosives at different distance measuring points is studied,The characteristics of the shock wave overpressure curves,the overpressure peak and the difference of impulse are analyzed.The results show that there is only one peak pressure curve in the explosion tower and tunnel environment,and the overpressure peak of D622 and D343 is higher than that of TNT,but with the increase of zero distance,the attenuation rate is significantly higher than that of TNT;Free field measuring point two peak pressure curve were obtained,and due to the superposition of multiple reflections in the gallery,makes the second peak is significantly higher than the first peak,especially D343 sample,its pressure peak value and pulse is TNT were showing a clear advantage.
作者
王洪海
张卫华
王胜强
陈君
高敏
张志刚
WANG Hong-hai;ZHANG Wei-hua;WANG Sheng-qiang;CHEN Jun;GAO Min;ZHANG Zhi-gang(Xi'an Modern Chemistry Research Institute,Xi’an 1710065,China)
出处
《应用化工》
CAS
CSCD
北大核心
2020年第S01期374-376,381,共4页
Applied Chemical Industry
关键词
复合炸药
爆炸坑道
冲击波
超压峰值
比冲量
explosive
blast tunnel
the shock wave
peak overpressure
specific impulse
