隐伏向斜扬起端构造控水规律分析——以开滦东欢坨矿为例

针对基岩裂隙含水层复杂、不均匀富水规律，以开滦东欢坨矿北二采区8煤层顶板含水层为例，综合分析了隐伏向斜中基岩裂隙含水层地下水富集的构造控制因素。得出向斜构造仰起端控制上覆水源含水层厚度、过水断面面积及风化带渗透性，影响基岩裂隙水补给；褶皱和断层的伴生裂隙与层面裂隙构成导、储水裂隙网络，断层发育密度、断层走向与地下水径流方向的关系对含水层局部富水性差异具有重要影响。

Analysis on law of geological structures controlling groundwater in buried syncline nose:a case in the Donghuantuo Coal Mine,Kailuan

To study the complex and irregular laws of water enrichment in bedrock fractured aquifers,controlling structural factors of fractured productive aquifers in buried syncline were comprehensively analyzed in the case of No.8 coal roof aquifer in Donghuantuo Coal Mine,Kailuan.It is concluded that the syncline nose controls the recharge of bedrock fractured aquifer by affecting the aquifer thickness of covering water source,area of recharge cross-section and weathered zone permeability.Cracks accompanied with fold & faults and cracks paralleling to bed plane constructs the fracture network.The fault population and the angel between the fault strike and ground water flow direction play an important role in local water abundance differences in the aquifers.