摘要
为探明矿井含水层的分布特征,预防矿井突水事故的发生,采用五极纵轴直流电测深法结合矿井实际地质条件,对矿井研究区域260 m深度内的地层视电阻率进行探测和研究,以查明研究区内第四系和新近系中层状、透镜状薄砂卵砾石层含水层的分布和厚度情况。将五极纵轴直流电测深法所得探测结果与对称四极测深结果和钻探成果分别进行对比研究,分析结果表明五极纵轴测深法对薄层状、透镜状含水地质体具有更高的纵向分辨率,可实现对采区地层电性的精细划分,可为煤矿的水文地质探查,矿井突水预测及煤矿安全生产工作提供技术依据与支持。
In order to find out the distribution characteristics of mine aquifers and prevent the occurrence of mine water inrush accidents,this paper uses the five-pole longitudinal axis direct current sounding method combined with the actual geological conditions of the mine to detect and study the apparent resistivity of the strata within 260 m depth in the mine research area to find out the Quaternary and Neogene in the study area.The distribution and thickness of layered and lenticular thin sand and gravel aquifers.The detection results obtained by the five-pole longitudinal axis DC sounding method are compared with the symmetrical four-pole sounding results and drilling results respectively.The analysis results show that the five-pole longitudinal axis sounding method has higher longitudinal resolution for thin-layer and lenticular water-bearing geological bodies.It can realize the fine division of the electrical properties of the strata in the mining area,and can provide technical basis and support for hydrogeological exploration,mine water inrush prediction and coal mine safety production.
作者
满立新
雷小平
郭嘉祺
代玲玲
麻永刚
MAN Lixin;LEI Xiaoping;GUO Jiaqi;DAI Lingling;MA Yonggang(Eco-environmental Geological Service Center of Henan Provincial Geological Bureau,Zhengzhou,Henan 450003;Beijing Longruan Technology Co.,Ltd.,Beijing 100190;Huaneng Coal Co.,Ltd.,Beijing 100070)
出处
《中国煤炭地质》
2024年第6期72-75,共4页
Coal Geology of China
关键词
五极纵轴测深法
地层岩性探测
含水层
视电阻率
five-pole longitudinal axis sounding method
strata lithology detection
aquifer
apparent resistivity
