深部高压水害隐患探测的井下电磁法技术  

Down-hole electromagnetic method for detecting deep high-pressure water hazard

作　　者：石显新[1,2] 李华 闫述[4] 陈明生[2] 侯彦威[2] 秋兴国[5] 

机构地区：[1]西安交通大学电子与信息工程学院,陕西西安710049 [2]煤炭科学研究总院西安研究院,陕西西安710054 [3]中煤西安设计工程有限责任公司,陕西西安710054 [4]江苏大学计算机科学与通信工程学院,江苏镇江212013 [5]西安科技大学计算机系,陕西西安710054

出　　处：《煤田地质与勘探》2008年第6期58-61,共4页Coal Geology & Exploration

基　　金：国家重点基础研究发展计划(973计划)项目(2006CB202207)

摘　　要：在煤矿深部高压水害隐患探测中,井下电磁法发挥着独到的作用。介绍了井下直流电法、井下高密度电阻率法、电透视法、井下瞬变电磁法的工作原理和施工方法,以及顶底板探测、侧帮水害隐患探测、回采工作面水害隐患探测及独头巷道超前探测的效果。结果表明,矿井电磁法对含水低阻体敏感,与探测目的层或地质体近距离接触,对导含水体具有较高的分辨能力,是探测采煤工作面突水隐患的有效方法。In the detection of deep high-pressure water hazard of coal mine, down-hole electromagnetic method plays a unique role. The article introduces working principles and construction methods of the down-hole DC electrical method, down-hole high-density resistivity method, electric transmission tomography and down-hole transient electromagnetic method, as well as their effects of water hazard detection respectively on roof, floor, lateral wall, mining face and pilot detection in blind roadway. The results indicate that the mine electromagnetic method is sensitive to water-bearing low-resistivity body and of relatively high resolution capacity on water-conducting and bearing body in case of a close contact with the target layer of detection or geological body; therefore, it is an efficient method for detecting water gushing hazard at coal face.

关 键 词：深部高压水害隐患探测 井下直流电法 井下高密度电阻率法 电透视法 矿井瞬变电磁法 

分 类 号：P631.3[天文地球—地质矿产勘探]