黄玉川煤矿地层含水性及渗透性的抽采试验研究
Experimental Study on Drainage of Strata Water-Bearing and Permeability in Huangyuchuan Coal Mine
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摘要: 通过在黄玉川煤矿地面布置抽水孔进行抽水试验,测试不同孔位的涌水量、渗透系数及影响半径,掌握奥灰水地层的富水性及渗透性特征,避免井下采煤过程中的突水事故。结果表明:奥陶系灰岩地层发育导水断裂带及陷落柱等导水通道,含水层对 9 号煤层开采的影响比其他煤层严重;抽水结束后,含水层水流补给抽水钻孔, 24 h内液面恢复至抽水之前的水位深度;地面钻孔抽水试验测试的涌水量在 0.018~2.412 m3/h之间,平均单位涌水量为 0.036 L/(s·m),属于弱含水性的含水层;渗透系数在平均值为 0.002 4 m/d,属于弱透水性的含水层。Abstract: The pumping test was carried out by arranging pumping holes in the ground of Huangyuchuan Mine to test the water inflow, permeability coefficient and influence radius of different hole positions, and to master the characteristics of water and permeability in the formation to avoid water inrush in underground coal mining. The results show that: Ordovician limestone strata develops water-conducting channels such as water-conducting fracture zone, fracture zone and collapse column; the influence of aquifer on 9# coal seam mining is more serious than other coal seams; after the pumping is completed, the aquifer water is replenished to the pumping hole,and the liquid level is restored to the depth of the water before pumping within 24 hours; the amount of water inflow from the ground drilling pump test is between 0.018 m3/h and 2.412 m3/h, and the average unit water inflow is 0.036 L/s·m, which is a weak aquifer; the permeability coefficient is 0.002 4 m/d, which is a weakly water-permeable aquifer.
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Keywords:
- Huangyuchuan Coal Mine /
- water-bearing /
- water-permeable aquifer /
- water inflow /
- water inrush /
- weak aquifer
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[1] 谢和平,吴立新,郑德志.2025年中国能源消费及煤炭需求预测[J].煤炭学报,2019,44(7):1949-1960. [2] 国家统计局.2018年国民经济和社会发展统计公报 [EB/OL].(2019-06-10)http://www.stats.gov.cn/tjsj/zxfb/201902/t20190228_1651265.Html. [3] 辛光明,邢文彬,武凯,等.阳城煤矿断层导水灾害“挡-堵”多体系防治技术[J].煤矿安全,2019,50(5):91-94. [4] 樊振丽.关于富水构造型底板突水系数计算方法的探讨[J].煤矿开采,2019,24(1):35-39. [5] 张耀辉,张海波.矿井防治水技术研究现状及展望[J].煤矿安全,2016,47(4):195-198. [6] 傅贵,郑志勇.煤矿透水事故不安全动作原因分类研究[J].煤矿安全,2016,47(7):244-247. [7] 邢斌.林西矿深部奥灰水突水危险性评价及防范措施[J].煤炭与化工,2019,42(2):76-78. [8] 原富珍,马克,庄端阳,等.基于微震监测的董家河煤矿底板突水通道孕育机制[J].煤炭学报,2019,44(6):1846-1856. [9] 孙魁,夏玉成,李成,等.综放开采条件下煤层顶板涌(突)水危险性评价[J].西安科技大学学报,2019,39(3):452-460. [10] 刘志新,王明明.环工作面电磁法底板突水监测技术[J].煤炭学报,2015,40(5):1117-1125. [11] 武洪涛.黄玉川煤矿4煤顶板工程地质特征及稳定性评价[D].焦作:河南理工大学,2016. [12] 田永华.井下高分辨电测深技术在黄玉川矿防治水的应用[J].中国煤炭,2015,41(9):25-27. [13] 姚桥矿,李明山.伯努利方程与井下探放水钻孔涌水量计算[J].矿业安全与环保,1999(2):37-38. [14] 高耀全.黄玉川井田奥灰水赋存规律及其突水危险性评价[D].西安:西安科技大学,2015. [15] 李仕杰,黄震,廖永斌,等.深部巷道断层破碎带渗透性测试及动态监测研究[J].煤矿安全,2019,50(7):50-55. [16] 李旭平.黄玉川煤矿奥灰水突水机理及其防治研究[D].包头:内蒙古科技大学,2013.
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