复杂条件下深埋条带采空区TEM探测技术  

TEM Detection Technology for Deep Buried Strip Goaf under Complex Conditions

作　　者：马炳镇 MA Bingzhen(CCTEG Xi'an Research Institute(Group)Co.,Ltd.,Xi'an 710077,China)

机构地区：[1]中煤科工西安研究院(集团)有限公司,西安710077

出　　处：《煤炭技术》2025年第1期125-130,共6页Coal Technology

摘　　要：城市郊区的电磁环境较为复杂,为实现复杂条件下深埋煤矿条带采空区有效探查,采用施工装置灵活、对低阻积水采空区响应敏感的TEM(瞬变电磁法)进行探测。先对勘探区地表探测条件的复杂性进行了分析介绍,然后讨论了条带采空区覆岩三带发育规律与围岩介质电性特征,分析其探测目标体与围岩介质存在较明显的电阻率差异,使其具备了较好的地球物理勘探前提条件。项目实施过程中,首先做好设计及施工阶段有效针对性的技术保障措施,保证获取的一手数据资料质量可靠;其次,在资料处理阶段,采用电磁噪声干扰校正技术和约束反演技术,提高对地质异常体的探测分辨能力,实现对目标体的有效探测。经钻探验证探测成果可靠,为后期注浆治理工作提供了有力支撑。The electromagnetic environment in suburban areas is relatively complex.In order to achieve effective exploration of deep buried coal mine strip goaf under complex conditions,TEM(transient electromagnetic method)is used for detection,which is flexible in construction equipment and sensitive to low resistance waterlogging goaf response.First introduces the complexity of surface exploration conditions in the exploration area,and then discusses the development law of the three zones of overlying rock in strip type goaf and the electrical characteristics of surrounding rock media.It analyzes the significant difference in electrical resistivity between the detection target body and the surrounding rock media,which enables it to have the prerequisite conditions for geophysical exploration.During the project implementation process,effective and targeted technical support measures should be taken during the design and construction stages to ensure the quality and reliability of the first-hand data obtained;secondly,in the data processing stage,electromagnetic noise interference correction technology and constraint inversion technology are adopted to improve the detection and resolution ability of geological anomalies,and achieve effective detection of target bodies.The drilling verification results are reliable,providing a strong basis for later treatment.

关 键 词：TEM探测 条带采空区 电磁干扰校正 约束反演 

分 类 号：P631[天文地球—地质矿产勘探]