耦合装药扩腔半径的探讨

Study on Springing Blasting with Coupling Charge

从岩石的冲击压缩破坏机理出发 ,分析探讨了封闭条件下耦合装药爆炸扩腔的半径 ,并利用DYNA- 2 D有限元程序对软质板岩的耦合装药爆扩进行了数值模拟。结果显示 ,模拟结果与理论计算值吻合得较好 ,表明推导的理论公式是合理可行的。这一结果对于药壶爆破爆炸扩腔机理和规律的研究均有重要意义。

In this paper, the radius formulae of crushing zone and final chamber in a stemmed and coupling charge springing blasting have been derived according to the springing mechanism, the numerical simulations by LS DYNA 2D software are proved to agree with the results of the theoretical calculations.The achievements will contribute to the developments of springing theory and the applications of springing technology.