基于五极纵轴测深法的含水层探测效果研究
Study on the Detection Effect of Aquifer Based on Five-Pole Longitudinal Axis Sounding Method
满立新 1雷小平 2郭嘉祺 1代玲玲 1麻永刚3
作者信息
- 1. 河南省地质局生态环境地质服务中心,河南郑州 450003
- 2. 北京龙软科技股份有限公司,北京 100190
- 3. 华能煤业有限公司,北京 100070
- 折叠
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.
Abstract
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.
关键词
五极纵轴测深法/地层岩性探测/含水层/视电阻率Key words
five-pole longitudinal axis sounding method/strata lithology detection/aquifer/apparent resistivity引用本文复制引用
出版年
2024
NETL
NSTL
万方数据