黄金科学技术 ›› 2018, Vol. 26 ›› Issue (3): 325-333.doi: 10.11872/j.issn.1005-2518.2018.03.325
吴昊1,陈炳瑞2*,池秀文1,王搏3,徐世达4,姜洪波5
WU Hao 1,CHEN Bingrui 2,CHI Xiuwen 1,WANG Bo 3,XU Shida 4,JIANG Hongbo 5
摘要: 红透山铜矿是我国开采深度最大的金属矿山之一,地压问题突出。为分析深部采场稳定性和预防围岩破坏,在红透山铜矿-707中段47采场建立了中科微震高精度微震监测系统,经人工爆破检验,在采场多空区条件下系统定位精度满足矿山生产要求。实时监测结果表明:(1)采场围岩应力调整较快,大型爆破后未发生微震活动明显增加的情况,小爆破和出矿活动等现场作业与微震活动具有正相关性;(2)47采场开采过程中微震活跃区主要位于3502川、出矿口、-707主巷道和采场内部靠近通风井2等附近,现场踏勘发现,前3个区域在不同程度上存在明显的动力型破坏情况,与监测结果相符;(3)按区域进行围岩稳定性分析,有利于探究微震活动与大型爆破、小爆破和出矿活动等现场作业的关系,分析围岩破坏主导因素。
中图分类号:
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