炮孔空气不耦合装药爆破的孔壁冲击压力初探  

Preliminary Analysis on Shock Pressure of Boreholes by Air-decoupling Charging

作　　者：朱子良[1] 

机构地区：[1]中国矿业大学,江苏徐州221008

出　　处：《煤矿爆破》2004年第3期5-7,共3页Coal Mine Blasting

摘　　要：从理论上分析探讨了炮孔空气不耦合装药爆破时孔壁初始冲击压力的计算方法。研究结果表明:一方面孔壁冲击压力值随着装药不耦合系数值的增大而呈指数规律衰减;另一方面类似于炮孔耦合装药,不耦合装药爆破同样存在着较坚硬致密的高阻抗岩石,孔壁冲击压力值较高,较松散软弱的低阻抗岩石,孔壁冲击压力值较低。In this paper, the shock pressure on boreholes by air-decoupling charging is analyzed and discussed. Results from the discussion indicate that the value of shock pressure decreases exponentially with the increase of decoupling coefficient of charging. In addition, it is similar to that of coupling charging that high shock pressure of decoupling charging is induced in hard and compact rocks and lower shock pressure in loose rocks.

关 键 词：炮孔 空气不耦合装药 冲击压力 

分 类 号：TD235.1[矿业工程—矿井建设]