瞬变电磁法探测技术在采空区探测中的应用  

Application of transient electromagnetic method in goaf detection

作　　者：李海洋 付巨德 王庆胜 李明 熊飞 LI Haiyang;FU Jude;WANG Qingsheng;LI Ming;XIONG Fei(Henan Institute of Geophysical Space Information,Zhengzhou 450000,Henan,China;Yili Qinghua Energy Development Co.,Ltd.,Yining 835100,Xinjiang,China)

机构地区：[1]河南省地球物理空间信息研究院,河南郑州450000 [2]新疆伊犁庆华能源开发有限公司,新疆伊宁835100

出　　处：《资源信息与工程》2023年第2期33-36,共4页Resource Information and Engineering

摘　　要：煤矿剥离、采煤作业结束后,留下了大面积的采空区和空洞。本文采用不同物探方法对比测试,发现小线框瞬变电磁法受矿区地形影响较大,对采空区具有较好的横向分辨率;反磁通瞬变电磁法受矿区地形影响较小,对采空区具有较高的纵向分辨率。根据实际选择不同的测试方法,可为煤矿剥采生产提供参考。Large areas of goafs and cavities was left after the stripping and mining operation in coal mine.In this paper,different geophysical exploration methods were used for comparative test,and it was found that the small wireframe transient electromagnetic method is greatly affected by the mining terrain,but has a better lateral resolution for detecting the goaf.Conversely,the inverse flux transient electromagnetic method is less affected by the mining terrain and has higher longitudinal resolution for identifying the goafs.Different test methods can be selected according to the actual production conditions to provide reference for stripping production of coal mine.

关 键 词：采空区 瞬变电磁法 横向分辨率 纵向分辨率 

分 类 号：P631.3[天文地球—地质矿产勘探]