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
Key words
roof water damage/transient electromagnetic method/drilling verification/drainage
维普
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