摘要
以淮南煤田潘二煤矿2次放水试验及"5.25"陷落柱突水等资料为基础,采用地下水系统分析、构造控水理论及统计分析等方法,对区内主要含水层间的水力联系和断层的导(阻)水性进行了系统分析。结果表明:奥陶系灰岩含水层与太原组C3Ⅲ段灰岩含水层之间存在密切水力联系,2个含水层水位响应和变化幅度近乎一致,而与太原组C3Ⅰ和C3Ⅱ段灰岩含水层间水力联系弱;F1断层在太原组C3Ⅰ和C3Ⅱ段灰岩含水层中为阻水断层,而在太原组C3Ⅲ段和奥陶系灰岩含水层为导水断层,DF1断层在太原组C3Ⅰ段含水层为阻水断层,而在太原组C3Ⅱ、C3Ⅲ段和奥陶系灰岩含水层中为导水断层。
Based on the data of the two water releasing tests and"5.25"water inrush of collapse columns of Pan’er Coal Mine in Huainan Coalfield, the hydraulic connection between the main aquifers and transmissivity-impermeability of faults were systematically analyzed by means of groundwater system analysis, structural water control theory and statistical analysis. The results show that: there a close hydraulic connection between Ordovician limestone aquifers with C3 Ⅲ group limestone aquifers of Taiyuan Formation with the same water level response and variation range. Besides, the hydraulic connection between Ordovician limestone aquifer with C3Ⅰ and C3 Ⅱ group limestone aquifer of Taiyuan Formation is weak. F1 fault is impermeability in C3Ⅰ and C3 Ⅱ group limestone aquifer of Taiyuan Formation but transmissivity in C3 Ⅲ group limestone aquifers of Taiyuan Formation and Ordovician limestone aquifers. In addition, DF1 fault is impermeability in C3Ⅰ group limestone aquifer of Taiyuan Formation but transmissivity in C3 Ⅱ, C3 Ⅲ group limestone aquifers of Taiyuan Formation and Ordovician limestone aquifers.
作者
高宇航
许光泉
党保全
张海涛
陈国军
孙贵
GAO Yuhang;XU Guangquan;DANG Baoquan;ZHANG Haitao;CHEN Guojun;SUN Gui(School of Earth and Enwironment,A nhui University of Science and Technology,Huainan 232001,China;Pan'er Mine of Huaihe Energy Group,Huainan 232088,China;Exploration and Research Institute,Anhui Bureau of Coal Geological Exploration,Hefei 230001,China)
出处
《煤矿安全》
CAS
北大核心
2021年第3期204-210,共7页
Safety in Coal Mines
基金
国家自然科学基金资助项目(41572147)。
关键词
地下水动态
陷落柱突水
断层导阻水性
水力联系
水文地质模式
groundwater dynamics
water inrush from collapse column
transmissivity-impermeability of faults
hydraulic connection
hydrogeological model
