黄陵矿区洛河组砂岩富水-释水规律

(1.西安科技大学 地质与环境学院,陕西 西安 710054; 2.陕西煤业化工技术研究院有限责任公司,陕西 西安 710065; 3.煤炭绿色安全高效开采国家地方联合工程研究中心,陕西 西安 710065)

洛河组砂岩; 多源地学信息融合; 富水性; 释水; 黄陵矿区

Water rich-releasing regularity of Luohe Formation sandstone aquifer in Huangling mining area
FENG Jie1,2,3,HOU En-ke1,WANG Su-jian2,3

(1.College of Geology and Environment,Xi'an University of Science and Technology,Xi'an 710054,China; 2.Shaanxi Coal and Chemical Technology Institute Co.,Ltd,Xi'an 710065,China; 3.Nation Engineering Research Center of Green Safe and Efficient Coal Mining,Xi'an 710065,China)

Luohe Formation sandstone; overlapping of multiple source geo-information; water rich; water releasing; Huangling mining area

DOI: 10.13800/j.cnki.xakjdxxb.2019.0307

备注

针对黄陵矿区洛河组砂岩含水层富水不均一的问题,采用多源地学信息融合的方法,综合冲洗液消耗量、脆弱性指数、构造3个影响因素,对洛河组砂岩富水性进行了分区; 采用太沙基原理揭示了洛河组砂岩含水层的释水机理,利用数值模拟研究煤层开采覆岩导水裂缝发育规律,总结洛河组砂岩释水规律。结果 表明:按照洛河组砂岩含水层富水性程度由大到小划分为强、中等、弱3类区域,所占比例分别为0.99%,31.02%,0.23%,抽水试验成果验证了划分结果的可靠性; 洛河组砂岩含水层可分为积水静储量迅速释放区—“突水危险源”与积水静储量暂缓释放区—“突水可控区”。

Aiming at inhomogeneity of rich water on the Luohe Formation sandstone aquifer in Huangling mining area,a division scheme of the water rich is presentedusing overlapping method of multiple source geo-information,which includes wash water quantity,vulnerability index and structure.The water releasing mechanism of Luohe Formation sandstone aquifer has been put forward based on the Terzaghi principle,and the breaking rule of coal seam overburden combined with numerical simulation has beenstudied.The law of water releasing is summarized.The results show that the water rich degree of the Luohe Formation aquifer has been divided into large,middle and weak,and the proportion is 0.99%,31.02%,0.23%.Pumping test results verify the reliability of the results; Luohe Formation sandstone aquifer can be divided into water static reserves:quick releasing area the water inrush hazards and water static reserves moratorium releasing area:water inrush controlled area.