黄蒿界煤矿水文地质特征及充水因素分析

Analysis on mine hydrogeology characteristics and water filling factors in Huanghaojie Coal Mine

依据黄蒿界煤矿以往地质勘查成果资料,对煤矿水文地质条件和充水因素进行研究分析,将煤矿地下水类型划分为第四系松散岩类孔隙裂隙潜水、中生代碎屑岩类孔隙裂隙潜水及承压水2大类型。分析认为,黄蒿界煤矿直接充水水源为侏罗系中统安定组、直罗组、延安组第四段砂岩裂隙水,其通过煤层开采形成的冒裂带,封闭不良钻孔和断裂破碎带及小型断层充水通道流入矿坑,第四系松散层潜水和白垩系下统洛河组孔隙裂隙水通过含水层之间相互补给构成间接充水水源。针对矿井充水因素,提出了防治水工作建议,为矿井设计建设和后续安全开采提供科学依据。

According to the previous geological exploration results of huanghaojie coal mine,the aquifer studies and analyzes the hydrogeological conditions and water filling factors of the coal mine.The groundwater types of the coal mine are divided into two types:Quaternary loose rock pore fissure phreatic water,Mesozoic clastic rock pore fissure phreatic water and confined water.The analysis shows that the direct water filling source of Huanghaojie Coal Mine is anding formation of Jurassic system sandstone fissure water in the fourth member of Zhiluo formation and Yan’an formation flows into the mine pit through the fracture zone formed by coal seam mining,poorly sealed boreholes,fault fracture zones and small fault water filling channels.Quaternary loose layer phreatic water and pore fissure water of lower cretaceous Luohe formation supplement each other through aquifers to form an indirect water filling source.According to the factors of mine water filling,some suggestions on water prevention and control are put forward,which provides a scientific basis for mine design and construction and subsequent safe mining.