新疆哈密大南湖矿区七号矿井3煤顶板突水危险性预测

Prediction of Water Inrush Risk in No. 7 No. 3 Coal Mine of Dananhu Mining Area,Hami,Xinjiang

基于大南湖矿区七号矿井的水文地质资料,本区地层可划分为一个隔水层和三个含水层;首采区瞬变电磁勘探划分出顶板相对富水区,结合导水裂隙带发育特征,使用"三图-双预测法"对矿井3煤顶板突水危险性分区进行预测。结果显示:矿井西北部顶板发生突水的危险性大;中部及北部大部分区域发生突水的危险性较大;东部和西南部为相对安全区,并根据此结果提出相应的防治水措施。

Based on the hydrogeological datas from the No. 7 coal mine in the Dananhu mining area,the formation of the area was divided into one aquifer and three aquifers. In the first mining area,transient electromagnetic survey was conducted to divide the relatively water-rich area of the top plate. Combined with the characteristics of the development of the water-conducting fissure zone,the"three maps-double prediction method"was used to evaluated the risk of water inrush in the roof of the 3 rd coal mine. The results show that there is a high risk of water inrush in the northwestern of the study area;there is a greater risk of water inrush in most of the central and northern parts;the eastern and southwestern parts are relatively safe. Based on this result,corresponding water control measures are proposed.