桑树坪2^(#)井1319工作面巷-孔瞬变电磁方法试验研究  

Experimental Research on Tunnel-hole Transient Electromagnetic Method in 1319 Face of Sangshuping No.2 Well

作　　者：王海博 李美玲 WANG Hai-bo;LI Mei-ling(Xi'an Research Institute,China Coal Technology and Engineering Group,Xi'an 710077,China;Space Will Info.Co.,Ltd.,Beijing 100089.China)

机构地区：[1]中煤科工集团西安研究院有限公司,西安710077 [2]北京航天世景信息技术有限公司,北京100089

出　　处：《煤炭技术》2021年第4期59-62,共4页Coal Technology

摘　　要：工作面内含水异常体位置、形态和方位的确定是电法数据解释的主要任务,是保障煤矿安全开采的基本条件。巷-孔瞬变电磁探测利用钻孔作为施工空间,既有效压制巷道中的各干扰因素,且空间上距离异常体更近从而取得更强的异常响应,是一拓展钻孔控制范围的探测方法。在桑树坪煤矿某工作面钻孔中开展巷-孔瞬变电磁探测,通过对三分量数据的分析,圈定了2处低阻异常体,与音频电透视结果相比,该方法可以更精细地确定异常体位置、形态和方位,显著提高准确判断异常体地质特性的准确性,对于指导工作面安全回采有重要意义。The determination of the position, shape and orientation of abnormal water-bearing body in working face is the main task of electrical data interpretation, and is the basic condition to ensure the safe mining of coal mine. Roadway-hole TEM detection uses borehole as construction space, which not only effectively suppresses the interference factors in roadway, but also gets closer to anomalous body in space to obtain stronger anomalous response. It is a detection method to expand the control range of borehole. Carries out roadway-hole transient electromagnetic detection in a borehole of Sangshuping coal mine. Through the analysis of three component data, two low resistivity anomalous bodies are delineated. Compared with the result of audio-frequency electro-fluoroscopy, this method can determine the position, shape and orientation of anomalous bodies more precisely, significantly improve the accuracy of accurately judging the geological characteristics of anomalous bodies, and is of great importance for guiding the safe mining of working face.

关 键 词：巷-孔瞬变电磁法 含水异常体 三分量 安全回采 

分 类 号：P631.325[天文地球—地质矿产勘探] TD745.2[天文地球—地质学]