采空区微震高精度定位方法研究

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英文篇名：A study on high precision positioning method of microseism in mine goafs 作者：戴锐 ; 张达 ; 冀虎 ; 石雅倩 英文作者：DAI Rui;ZHANG Da;JI Hu;SHI Yaqian;BGRIMM Technology Group;Beijing Key Laboratory of Nonferrous Intelligent Mining Technology; 关键词：采空区 ; 微震监测 ; 微震定位 ; 权重参数 英文关键词：mine goaf;;micro-seismic monitoring;;micro-seismic positioning;;the weight parameter 中文刊名：中国矿业 英文刊名：China Mining Magazine 机构：北京矿冶科技集团有限公司;金属矿山智能开采技术北京市重点实验室; 出版日期：2019-10-20 出版单位：中国矿业 年：2019 期：S2 基金：国家重点研发计划项目资助(编号：2017YFC0602904);; 北京矿冶科技集团科研基金项目资助(编号：JTKJ1816) 语种：中文; 页：203-207 页数：5 CN：11-3033/TD ISSN：1004-4051 分类号：TD76

摘要

当前微震监测系统在矿山采空区震源定位误差较大,严重影响了后期的处理解释、安全评价、巷道支护设计。针对这一现状,本文采用基于迭代初值的震源定位方法得到初始定位结果,根据监测台站与重点监测区域间距、监测台站微震信号信噪比设置相应权重参数进行重定位,采用矿山现场数据进行IMS微震监测系统定位结果和本文定位结果对标,结果表明,基于迭代初值的分权重震源定位方法得到的定位结果更可靠,准确匹配矿山采动过程中危险源所在区域。
        At present,the focal location error of the micro-seismic monitoring system is large in mine goafs,which seriously affects the later processing interpretation,safety evaluation,and roadway support design.To tackle this problem,this paper adopts the locating method based on iterative initial value,the absolute positioning method is used to obtain the initial positioning result,and then we apply distance-weighting and signal-to-noise ratio weighting scheme for the monitoring station and the key monitoring area.Furthermore,the weighting parameters are used for relocating.Finally,the mine site data is used to carry out the IMS micro-seismic monitoring system positioning results and the relocation results benchmarking.The results show that the relocation results based on iterative initial value and weighting parameters are more reliable and more accurately match the area where the hazard source is located during mining.

引文

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