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中文摘要: 微震监测技术是上覆岩层冒落规律监测的重要手段。本文采用微震监测系统,对普朗铜矿自然崩落法开采过程中顶板冒落规律进行实时监测和预报。在充分结合普朗铜矿开采条件下,首先进行微震监测系统台网布置优化,确定该矿首采区微震监测要求的最佳监测系统配置方案;总结分析微震活动的时空演化特征,并对复杂地质构造影响下岩体破裂范围进行圈定,进而识别发生顶板大范围冒落的前兆信息及潜在危险区。
Abstract:Microseismic monitoring technology is an important means for monitoring the law of overlying rock formation inbreak. In this paper, microseismic monitoring system is used to monitor and forecast about the roof collapse in the process of natural caving in the Pulang copper deposit. First, the network layout of the microseismic monitoring system is optimized, and the optimal monitoring system configuration scheme for the microseismic monitoring requirements of the first mining area is determined;By summarizing and analyzing the spatio-temporal evolution characteristics of microseismic activities, we delineated the fracture scope of rock mass under the influence of complex geological structure, and then identified precursory information and potential dangerous area of roof falling.
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基金项目:“十三五”国家重点研发计划项目(2017YFC0602904,2017YFC0804402)
引用文本:
王 平1,2,冯兴隆3,蔡永顺1,2,刘华武3,袁本胜1,2,赵冰峰3,彭 张3.微震监测自然崩落法开采过程中顶板冒落规律应用研究[J].有色金属(矿山部分),2018,70(4):12-15.
WANG Ping1,2,FENG Xinglong3,CAI Yongshun1,2,LIU Huawu3,YUAN Bensheng1,2,ZHAO Bingfeng3,PENG Zhang3.Application of microseismic monitoring on roof collapse in the mining process[J].NONFERROUS METALS(Mining Section),2018,70(4):12-15.
王 平1,2,冯兴隆3,蔡永顺1,2,刘华武3,袁本胜1,2,赵冰峰3,彭 张3.微震监测自然崩落法开采过程中顶板冒落规律应用研究[J].有色金属(矿山部分),2018,70(4):12-15.
WANG Ping1,2,FENG Xinglong3,CAI Yongshun1,2,LIU Huawu3,YUAN Bensheng1,2,ZHAO Bingfeng3,PENG Zhang3.Application of microseismic monitoring on roof collapse in the mining process[J].NONFERROUS METALS(Mining Section),2018,70(4):12-15.