富水矿山炮孔含水量对爆破效果的影响分析  

Analysis of the influence of water content in blastholes of water-rich mines on blasting effects

作　　者：吴仁慈 汪海波[1] 高朋飞[1,2] 王鑫 张文明 WU Ren-ci;WANG Hai-bo;GAO Peng-fei;WANG Xin;ZHANG Wen-ming(School of Civil Engineering and Architecture,Anhui University of Science and Technology,Huainan 232001,Anhui,China;Anhui Jiangnan Blasting Engineering Co.,Ltd.,Xuancheng 242300,Anhui,China)

机构地区：[1]安徽理工大学土木建筑学院,安徽淮南232001 [2]安徽江南爆破工程有限公司,安徽宣城242300

出　　处：《工程爆破》2023年第3期39-45,54,共8页Engineering Blasting

基　　金：国家自然科学基金资助项目(52074009);安徽理工大学专利转化培育基金资助项目(ZL201908)。

摘　　要：为探究不耦合装药下炮孔内不同含水量对爆破的影响,选取不耦合系数为1.27,利用ANSYS/LS-DYNA软件,在装药相同的情况下建立6种不同含水量的三维单孔爆破模型。通过应力云图和模拟数据对含有不同含水量的水作为不耦合介质进行分析比较,从而确定最佳含水以优化富水环境下爆破参数和效果。结果表明:炮孔含水量为15%的时候,爆破后的应力分布和能量传递效果较好,并且含水的部位明显比空气部位具有更好能量传递作用,研究结果可为富水环境下的露天矿开采提供理论依据。In order to explore the influence of different water content in the gun hole under uncoupled charge on blasting,taking a decoupling factor of 1.27,the ANSYS/LS-DYNA software was used to build a three-dimensional single-hole blasting model with 6 different water content with the same charge.Through stress cloud and simulation data,water with different water content is analyzed and compared as an decoupled medium,so as to determine the optimal water content to optimize the blasting parameters and effect in water-rich environment.The results show that when the water content of the blasthole is 15%,the stress distribution and energy transfer effect after blasting are better,and the water-containing part has better energy transfer than the air part,and the research results can provide a theoretical basis for open-pit mining in water-rich environment.

关 键 词：不耦合装药 露天矿 爆破 数值模拟 水介质 

分 类 号：TD824[矿业工程—煤矿开采] U459.3[矿业工程—矿山开采] TD235[建筑科学—桥梁与隧道工程]