地下井工巷道钻爆法开挖损伤规律研究  

Research on damage regularity of underground tunnel excavation by drilling and blasting

作　　者：沙仙武 SHA Xian-wu(Tibet Julong Copper Industry Co.,Ltd.,Lhasa 850200,China)

机构地区：[1]西藏巨龙铜业有限公司,西藏拉萨850200

出　　处：《世界有色金属》2025年第3期118-120,共3页World Nonferrous Metals

摘　　要：根据某矿山岩巷掘进条件,针对某矿山巷道开挖损伤演变规律进行探索,采用有限元数值模拟软件对矿山岩巷爆破过程进行模拟。模拟结果显示在t=10ms时爆破损伤轮廓已成形,当t=20ms时,损伤累计已完全形成,总体来看,巷道掘进爆破效果良好,能够形成规则的断面,对顶底板和两帮的影响较小。According to the driving conditions of a mine roadway,the evolution law of roadway excavation damage is explored,and the blasting process of mine roadway is simulated by finite element numerical simulation software.The simulation results show that when t=10ms,the blasting damage outline has been formed,and when t=20ms,the cumulative damage has been completely formed,and the subsequent changes are not significant.

关 键 词：巷道开挖 钻爆法 数值模拟 损伤规律 破岩机理 

分 类 号：O319.56[理学—一般力学与力学基础]