摘要
本文首先对现有不耦合装药条件下炮孔压力的计算方法进行讨论,指出所存在的一些不合理的因素。然后基于瞬时爆轰的概念,对实际的爆炸过程进行简化,将爆炸载荷作用于炮孔岩壁的过程视为爆炸气体的准静态等熵膨胀,按照能量等效的原则,给出了径向不耦合装药条件下炮孔初始压力的计算公式。最后将本文推荐方法与现有方法的计算结果进行了比较。
In this paper, Firstly, current calculation formula for calculate borehole pressure under decoupled charging is appraised and the doubtful points are pointed out. Secondly, based on the concept of instantaneous detonation as well as considering the procedure of explosive loading exerted on borehole as the quasi-static isentropic dilation, the formula for calculate borehole pressure under decoupled charging is educed. Finally, the method proposed by this paper and the current formulas are compared. It is believed that the Increase Factor is not a constant hut increases with the coefficient of decoupled charging.
出处
《中国矿业》
北大核心
2009年第6期104-107,110,共5页
China Mining Magazine
