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永陇矿区煤层采动顶板面临巨厚洛河组砂岩水害的威胁，针对永陇矿区洛河组含水层在煤层采动过程中富水性变化规律展开研究，有助于该区防治煤层顶板水害，为矿井安全生产提供有力保障。以园子沟煤矿某工作面为研究区，通过地质与水文地质的分析，选用瞬变电磁法对煤层采动过程中洛河组含水层电性变化特征进行动态监测，结果表明洛河组含水层富水性在煤层采前、采中、采后呈现先降低再升高的趋势，但采后较采前富水性略微降低。实际应用证明，采用地面瞬变电磁法对煤层采动过程中含水层富水性变化进行动态监测是可行的。研究成果可为煤层顶板洛河组砂岩水害防治提供基础参考。
Abstract：During coal seam mining in the Yonglong Mining Area, the roof is threatened by the extremely thick aquifer within the Luohe Formation sandstones. The water-rich variation law of the aquifer of the Luohe Formation in the Yonglong mining area during the coal seam mining process is studied, which is helpful to prevent and control the water hazards of the coal seam roof in the area and provides a strong guarantee for the safe production of the mine. Taking a working face of Yuanzigou Coal Mine as the study area, through geological and hydrogeological analyses, the transient electromagnetic(TEM) method was used to dynamically monitor the electrical change characteristics of the aquifer in the Luohe Formation throughout the coal seam mining process The results showed that the water richness of the aquifer in the Luohe Formation decreased first and then increased during mining, with a slightly lower level after mining compared with that before mining. Practical applications have demonstrated that it is feasible to dynamically monitor changes in aquifer water abundance during coal mining using the ground transient electromagnetic method.These research results can provide a basic reference for the prevention and control of sandstone water hazards in the Luohe Formation on the roof of the coal seam.
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基本信息:
中图分类号:P631.325;TD74
引用信息:
[1]薛海军,杜林,崔江伟,等.永陇矿区煤层采动洛河组砂岩富水性变化规律：来自瞬变电磁监测的证据[J].工程地球物理学报,2025,22(06):623-631.
基金信息:
陕西省煤田地质集团2023年科技项目(编号:SMDZ-2023CX-13)