摘要
用实验方法对两种含水炸药—水胶炸药和珍珠岩敏化的乳化炸药动压下的减敏作用进行了研究。为了更全面深入地研究这问题,提出了临界压死距离和临界距离两个概念。研究表明,含水炸药的减敏作用与药包间距和延期时差关系很大。水胶炸药的临界压死距离大于乳化炸药,而它们的临界距离相当,这表明两种炸药发生减敏的难易程度相近,但是乳化炸药的抗压死能力比水胶炸药大。采用5段延期电雷管引爆时两种含水炸药的减敏作用比采用2段延期电雷管引爆严重些。
The desensitisation of two kinds of water-bearing explosive,the water gel explosive and emulsion explosive sensitized by perlite,under dynamic pressure is studied by means of experimental method.For further study,two concepts of critical dead-pressed distance and critical distance are introduced.The results show that the desensitisation of water-bearing explosives is closely related with charge space and delay interval,and that the critical dead-pressed distance of water gel explosive is longer than that of emulsion explosive while their critical distances are about the same.For these reasons,it can easily be concluded that two kinds of explosive are close in the extent of desensitisation under dynamic pressure,but resistance to the dead-pressing of emulsion explosive is greater than that of water gel explosive.With use of electric delay detonator No 5,two kinds of explosive have more serious desensitisation as compared with using electric delay detonator No 2.
出处
《工程爆破》
2003年第4期67-71,共5页
Engineering Blasting
基金
安徽省自然科学基金项目(01045405)
关键词
减敏作用
水胶炸药
乳化炸药
抗压死能力
临界压死距离
爆轰感度
Water-bearing explosives
Dynamic pressure
Desensitisation
Critical distance
Critical dead-pressed distance
