CSAMT法在采空区勘查中的应用——以某铁路线路优化为例  

Application of CSAMT method in mining exploration:optimization of railway line as an example

作　　者：江新[1] JIANG Xin(Anhui Institute of Geophysics and Geochemistry,Hefei 230022,Anhui,China)

机构地区：[1]安徽省地球物理地球化学勘查技术院,安徽合肥230022

出　　处：《资源信息与工程》2022年第4期75-78,共4页Resource Information and Engineering

摘　　要：淮北某煤矿位于安徽省淮北市,煤层埋深主要在200~600 m,煤矿开采年限长,采空区具有埋深大、隐蔽强等特点。本文设计铁路位于煤矿采空影响范围内,为进一步核实采空区及影响范围,据此优化线位及工程设置,采用可控源音频大地电磁法对该区域进行了地球物理勘查工作,经异常钻探验证,与推测的结论基本一致。综合矿区已有资料,认为铁路线路可按原设计进行。说明采用可控源音频大地电磁法探测采空区是有效可行的。The studied Huaibei coal mine is located in Huaibei City,Anhui Province.The buried depth of coal seam is mainly about 200~600 m.The mining age is long,and the mined-out area is characterized by large buried depth and strong concealment.A designed railway line is in influence of the mined-out influence.In order to further verify the mined-out area and its influence range,The controlled source audio-frequency magnetotelluric method was used for geophysical exploration in this area according to the line location and engineering settings.The anomaly drilling validation resultwas basically consistent with the speculated conclusion.Based on the existing data of mining area,It was concluded that the railway line can be carried out according to the original design.It was showed that Controlled Source Audio-frequency Magnetotelluric Method is feasible and effective.

关 键 词：煤矿采空区 可控源音频大地电磁法 

分 类 号：P631[天文地球—地质矿产勘探]