瞬变电磁法在开采煤层顶板富水区探测中的应用  

Application of Transient Electromagnetic Method in Detecting Water-rich Zone of Coal Seam Roof

作　　者：张大辉 ZHANG Dahui(Lingbei Coal Mine,Shanxi Fenxi Mining(Group)Co.,Ltd.,Jinzhong 030600,Shanxi,China)

机构地区：[1]山西汾西矿业(集团)有限责任公司灵北煤矿,山西晋中030600

出　　处：《能源与节能》2024年第12期292-294,301,共4页Energy and Energy Conservation

摘　　要：山西一煤矿5202工作面区域水害情况不详,为确保工作面回采期间无水害,分析了5202工作面地质情况,并采用瞬变电磁法对采面顶板富水区进行勘探,勘探出低阻异常区3处,其中CX-3异常区最为显著;采用钻探进行验证可知,CX-1、 CX-2号异常区均无水,CX-3存在积水,排水7 d后,区域水害得到有效控制,后期加强水害观测即可。研究成果和研究方法对于其他矿井水害治理具有一定指导意义。Water damage in 5202 working face area of a coal mine in Shanxi Province was unknown.In order to ensure no water damage during mining,the geological condition of 5202 working face was analyzed,the water-rich area of the roof of the working face was explored by using transient electromagnetic method,and three low-resistivity abnormal areas were discovered,among which the CX-3 abnormal area was the most significant;through drilling verification,it can be seen that there was no water in CX-1 and CX-2 abnormal areas,and there was water in CX-3.After 7 days of drainage,regional water damage was effectively controlled,and water damage observation should be strengthened in the later stage.The research results and research methods have certain guiding significance for other mine water disaster control.

关 键 词：顶板水害 瞬变电磁法 钻探验证 疏排水 

分 类 号：TD745[矿业工程—矿井通风与安全]