爆破空气冲击波对巷道围岩稳定性影响的探讨  

Discussion on the effect of air blasting wave of blasting operation on the stability of the tunnel’s country rock

作　　者：谭海文[1] 

机构地区：[1]广西大学

出　　处：《黄金》1998年第4期24-25,共2页Gold

摘　　要：本文论述了井下爆破空气冲击波的强度及衰减规律，分析了空气冲击波传播时巷道围岩岩块的受力状态和破坏机理，从而指出空气冲击波在一定范围内对巷道围岩稳定不利，必须采取相应措施。In this paper,the strength and attenuation regularity of air blasting wave of underground blasting operation are described,the stress state of rock mass and the fracture mechanism of the tunnel’s country rock during the air blasting wave spreading are analysed and the unfavored action of air blasting wave to the stability of tunnel’s country rock in a certain range that must be seriously dealt with is pointed out.

关 键 词：爆破 空气冲击波 岩块 金矿 围岩稳定性 

分 类 号：TD863[矿业工程—金属矿开采] TD325.1[矿业工程—矿山开采]