摘要
为确定瞬变电磁法和大地电磁法探测煤矿积水采空区的有效性,基于两种方法的基本原理和工作方法,以鸡西矿区庆东煤矿工程实例,应用瞬变电磁法和大地电磁法对该煤矿勘探区进行地面综合物探,通过探测反演成果与已知资料对比分析,进行钻探验证研究。结果表明,两种方法探测的反演结果视电阻率变化特征基本相似,都能较好地反映出地层的电性特征,推断勘探区存在1处积水采空区的分布范围也较为吻合,与现场实际资料及钻探结果基本一致,验证了这两种方法的有效性。瞬变电磁法和大地电磁法综合物探能够作为寻找煤矿积水采空区的有效方法,可为煤矿防治水工作提供技术支持,具有十分重要的工程应用价值。
In order to determine the effectiveness of transient electromagnetic method and magnetotelluric method in goaf hydrops detecting for coal mines. Based on the basic principles and working methods, the two methods are applied in ground comprehensive geophysical prospecting in the coal mine exploration area, taking a coal mine in Jixi coal mining area as an example. Through the comparative analysis of inversion results and known data, the drilling verification is carried out. The results show that the apparent resistivity variation characteristics of the inversion results detected by the two methods are similar, which could reflect the electrical property features of the formation preferably. It was also relatively consistent with the inferred distribution range of one goaf hydrops in the exploration area. The drilling results are basically identical with the actual field data, which verifyies the effectiveness of the two methods. The two methods has high engineering value to find goaf hydrops of coal mine as an effective method and to provide technical support for coal mine water.
作者
林井祥
张立明
张继忠
UN Jing-xiang;ZHANG Li-ming;ZHANG Ji-zhong(School of Mining Engineering,Heilongjiang University of Science and Technology,Harbin 150022 China;Beijing Anke Xingye Research Institute Company Limited of Mine Safety Technology,Beijing 102299,China)
出处
《煤炭工程》
北大核心
2021年第6期152-156,共5页
Coal Engineering
基金
黑龙江省高等学校基本科研业务费支持项目(2020-KYYWF-0676)。
关键词
瞬变电磁法
大地电磁法
积水采空区
视电阻率
探测
transient electromagnetic method
magnetotelluric method
goaf hydrops
apparent resistivity
detection
