瞬变电磁探测技术在煤矿岩溶富水区勘探中的应用研究  

Application Research of Transient Electromagnetic Prospecting Technology in Coal Mine Karst Water-Rich Areas

作　　者：袁鹏 Yuan Peng(China Coal Science&Technology Xi'an Research Institute(Group)Co.,Ltd.,Xi'an,China)

机构地区：[1]中煤科工西安研究院(集团)有限公司,陕西西安

出　　处：《科学技术创新》2025年第10期18-21,共4页Scientific and Technological Innovation

基　　金：陕西省自然资源保护利用专项资金(D022J045)。

摘　　要：采用瞬变电磁探测技术对煤矿地层中岩溶富水区位置进行探测,通过测量地下岩层的电阻率值来分析推测岩溶富水区的位置及范围。研究结果表明:地质剖面内部发现有相对低阻异常的空洞区域,指示了可能存在的岩溶富水区;在钻孔瞬变电磁探测成果中探测到三处低阻异常区域,分别位于145~170 m、180~210 m和360~385 m深度;进一步分析地质资料和视电阻率分布特征,认为1号和2号异常低阻区域可能为奥灰岩溶裂隙发育并含水所致,而3号区域则可能为太原组灰岩岩溶裂隙发育并相对含水所致;通过瞬变电磁探测,成功推断出岩溶富水区的具体位置,研究结果为探查煤矿岩溶富水区域提供了一种有效的方法。Transient electromagnetic(TEM)detection technology was employed to locate the karst-rich water areas within coal mine strata.The positions and extents of these karst-rich water areas were inferred by measuring the resistivity values of the underground rock layers.The results indicate that low-resistivity anomalies corresponding to void regions were identified within the geological profiles,suggesting potential karst-rich water areas.In borehole TEM surveys,three low-resistivity anomaly zones were detected at depths of 145~170 m,180~210 m,and 360~385 m,respectively.Further analysis of geological data and apparent resistivity distribution characteristics suggests that the first two anomalous low-resistivity zones might be due to the development of Ordovician limestone karst fissures with water content,while the third zone could be attributed to the development of Taiyuan Group limestone karst fissures with relatively high water content.Through TEM detection,the specific locations of the karst-rich water areas were successfully determined.The findings provide an effective method for investigating karst-rich water regions in coal mines.

关 键 词：瞬变电磁法 岩溶 富水区 煤矿 

分 类 号：U452.1[建筑科学—桥梁与隧道工程] P631.3[交通运输工程—道路与铁道工程]