高密度电法在煤矿采空区探测中的研究与应用

摘要

介绍了高密度电法的基本原理、视电阻率计算公式和探测装置的类型。针对工区地质资料，设计测线布置，获取完整的测线或测网数据后，对采集到的数据进行预处理和格式转换。剔除畸变数据，反演、绘制视电阻率断面图，最后结合地质资料对异常作出解释。通过华北地区某煤矿采空区的物探数据，绘制视电阻率剖面和平面图，针对异常区进行打钻验证，异常区位置与推测位置相符。探测结果表明，高密度电法对解决煤矿采空区地质问题是一种快捷、高效的勘查手段。%In this paper,the basic principle,apparent resistivity formula and detection device type of highGdensity resistivity method are introduced�In view of the geological data in working area,the arrangement of the measuringGline is designed,and the preprocessing and format conG version on the complete collected measuringGline or network data are conducted� The distorted data is eliminated;the apparent resistivity profile is inverted and drawn;finally the anomalies are explained combining with the geological data�The section and plane plan of apparent resistivity are drawn according to the geophysical prospecting data of a certain coal mine gob in north China, and then drilling testing is done in the anomaly area,the location of which coincides with the supG posed location�The detection results show that highGdensity resistivity method can be considered a quick,effective exploration method to solve the geological problems of coal mine gob.