胡家河煤矿涌水特征及防治水思路

Characteristics of water inflow in Hujiahe Coal Mine and the idea of water prevention and control

通过分析胡家河煤矿水文地质特征和已回采工作面防治水经验,发现矿井的主要充水水源是地下水和采空区积水,主要充水通道是采动裂隙、断裂裂隙和封闭不良钻孔,以此得出了矿井涌水变化特征。结合矿井涌水量变化特征和开采技术条件等因素,提出了符合矿井实际的防治水思路:即允许覆岩导水裂隙带适当波及洛河含水层下段,以建立完善工作面、采区、矿井排水系统为重点,以白垩系洛河组含水层自然疏排为主,以侏罗系富水异常区探查及预疏放为辅,主动实施超前注浆加固防范断裂构造水害,按照清浊分离、压力自流的原则防治采空区积水。

Based on the hydrogeological characteristics of Hujiahe Coal Mine and the experience of water prevention and control in the stoped face,the paper analyzes that the main water filling sources of the mine are groundwater and goaf ponding,and the main water filling channels are roof mining fissures,fracture fissures and poorly sealed drilling holes,therefore the variation characteristics of mine water inflow are obtained.In combination with factors such as the variation characteristics of mine water inflow and mining technical conditions,the idea of water prevention and control in line with the actual situation of the mine is put forward:allowing the water conducting fracture zone of overburden rock to appropriately spread to the lower section of the Luohe river aquifer,focusing on establishing and improving the working face,mining area and mine drainage system,focusing on the natural drainage of the Cretaceous Luohe Formation aquifer,supplemented by the exploration and pre drainage of the Jurassic water rich abnormal area,take the initiative to implement advance grouting reinforcement to prevent water damage of fracture structure,and prevent water accumulation in goaf according to the principle of separation of clear and turbid water and pressure self flow.