幅频电透视在探查煤层底板水及注浆检验中的应用  

Application of amplitude frequency electricity perspective in detecting coal seam floor water and grouting test

作　　者：崔焕玉 Cui Huanyu(Hebei mine geophysical detection engineering center,Hebei Coal Scientific Research Institute Corporation Ltd.,Xingtai 054000,China)

机构地区：[1]河北煤炭科学研究院有限公司河北省矿井物探工程中心,河北邢台054000

出　　处：《煤炭与化工》2022年第1期36-38,共3页Coal and Chemical Industry

基　　金：基于地空电磁探测的导水通道探查与注浆效果研究与应用(邢台市重点研发计划项目2020ZZ014)。

摘　　要：荣康煤业有限公司11001工作面受奥陶系灰岩岩溶裂隙承压含水层突水威胁严重,在工作面回采前需提前探查清楚并正确处理煤层下伏灰岩含水异常体。本文基于井下幅频电透视探测技术,采用定点三极电透视施工布置方法,对该工作面底板含水异常体位置进行了探测,钻孔验证了富水区域并进行了注浆加固,最后又进行了二次幅频电透视探测。结果表明,幅频电透视技术对底板岩性变化反应灵敏,在煤层底板注浆效果评价中具有良好应用前景。A working face of Rongkang Coal Industry Co.,Ltd.was seriously threatened by sudden water from Ordovician limestone karst fracture confined aquifer.It was necessary to clearly detect and correctly settle the limestone water-bearing anomaly body under the coal seam before working face mining.Based on the underground amplitude frequency electricity perspective detection technology and the fixed-point three pole electricity perspective construction layout method,the position of water-bearing anomaly body in the working face floor was detected,the watery zone was verified by drilling,grouting reinforcement was carried out,and then the secondary amplitude frequency electricity perspective detection was carried out.The results showed that the amplitude frequency electricity perspective technology was sensitive to the floor lithology change,and it had a good application prospect in the grouting effect evaluation of coal seam floor.

关 键 词：幅频电 煤层底板 富水区 注浆 

分 类 号：TD74[矿业工程—矿井通风与安全]