柱形装药在典型岩体内应力波的数值计算  

Numerical Calculation on the Stress Wave of Cylindrical Charge Exploding in Typical Rock Mass

作　　者：江国华[1] 段云[2] 

机构地区：[1]江西铜业集团公司德兴铜矿,江西德兴334224 [2]北京矿冶研究总院,北京100160

出　　处：《铜业工程》2016年第6期29-32,共4页Copper Engineering

基　　金：国家自然基金项目(51104018);西城区优秀人才培养资助项目(20120071)

摘　　要：为了分析柱形装药在不同岩体内爆炸应力波的传播规律,针对德兴铜矿露天采区实际爆破情况,采用有限元动态力学分析软件,数值模拟了乳化炸药在炮孔直径为250mm、装药结构为耦合装药、三种典型岩体内的爆炸应力波的衰减规律,得到岩体中爆炸应力波衰减曲线公式和数值模拟结果,为爆破孔网设计以及盲炮处理提供依据。In order to analyze the propagation role of the stress wave caused by cylindrical charge explosion in different rock mass, it bases on the actual blasting situation of the open-pit mining area in Dexing Copper Mine, using software of finite element analysis software for a numerical simulation on the attenuation law of explosive stress wave. The simulation is operated on condition that emulsion explosive with coupling charge structure explodes in 3 typical rock mass from blast holes having a dimneter of 250mm. As a result, the attenuation formula and numerical simulation results of explosive stress wave are obtained, providing basis for the handling of blasting hole and misfire.

关 键 词：柱形装药 露天爆破 应力波 盲炮 数值分析 

分 类 号：TD854.2[矿业工程—金属矿开采]