高精度重力测量在抚顺煤矿采空区探测中的应用  

Application of high precision gravity survey in detecting mined-out areas of Fushun coal mine

作　　者：郇恒飞[1] 高铁[1] 赵海卿[1] 赵维俊[1] 郭灿文 时彬 HUAN Hengfei;GAO Tie;ZHAO Haiqing;ZHAO Weijun;GUO Canwen;SHI Bin(Shenyang Geological Survey Center,CGS,Shenyang 110034,China;National Marine Data and Information Service,Tianjin 300171,China;Liaoning Institute of Geology and Mineral Survey,Shenyang 110031,China)

机构地区：[1]中国地质调查局沈阳地质调查中心,辽宁沈阳110034 [2]国家海洋信息中心,天津300171 [3]辽宁省地质矿产调查院,辽宁沈阳110031

出　　处：《煤田地质与勘探》2019年第6期194-200,共7页Coal Geology & Exploration

基　　金：国家重点研发计划项目(2016YFC0600108);中国地质调查局地质调查项目(DD20160266,DD20189504)~~

摘　　要：为查明抚顺煤矿采空区的位置、深度和分布范围,综合考虑城市中影响物探方法的因素,首次在该地区采用高精度重力测量方法进行采空区探测。先通过分析采空区的物性差异,建立理论模型进行正演计算,预研究重力方法的适用性。然后在研究区布设大比例尺面积性高精度重力测量工作,通过对布格重力异常进行位场分离、三维视密度反演和边界识别计算,推断了煤矿采空区的位置、深度、边界及该区内的构造分布。研究结果表明,高精度重力测量方法结合有效的数据处理方法,能在城市煤矿采空区的探测中发挥重要作用。In order to find out the location,depth and distribution range of the mined-out areas in Fushun coal mine,and comprehensively considering the factors affecting the geophysical methods in the cities,the method of high-precision gravity survey was firstly used to study the mined-out areas in the area.Firstly,by analyzing the physical differences of the mined-out areas,a theoretical model was established for forward calculation and preliminarily studied on applicability of the gravity method.Then,a large-scale work of high-precision gravity survey was arranged in the study area,and through potential field separation,3 D apparent density inversion and boundary identification calculation of the Bouguer gravity anomaly,the location,depth,boundary and tectonic distribution of the mined-out areas were inferred.The research results show that the method of high-precision gravity survey combined with effective data processing method can play an important role in the detection of mined-out areas in urban coal mines.

关 键 词：采空区 高精度重力测量 位场分离 三维视密度反演 边界识别 抚顺煤矿 

分 类 号：P631[天文地球—地质矿产勘探]