淮北煤田花沟井田水文地质特征及矿井涌水量预算

在分析井田水文地质特征的基础上,对矿井的充水因素进行了论述,认为矿区的主要充水水源为新生界松散层第四含水层砂层孔隙水、二叠系煤系地层砂岩裂隙水和石灰岩岩溶裂隙水,指出了灰岩与煤岩层对口部位是突水可能发生的主要地段,在以后煤矿开采时要加以重视和预防。采用了地下水动力学法、比拟法对矿井涌水量进行了预算,通过对两种计算方法的分析比较,建议采用比拟法预算结果作为矿井正常涌水量和最大涌水量。

Hydrogeological Characteristics and Mine Inflow Estimation in Huagou Minefield,Huaibei Coalfield

Based on minefield hydrogeological characteristic analysis,mine water infilling factors has been discussed,and considered that the main water filling sources have Cenozoic loose bed Quaternary aquifer sand bed pore water,Permian coal measures strata sandstone fissure water and limestone karst fissure water.Pointed out the lining-up position of limestone and coal strata is the main potential sector of water bursting hazard,should be thought much of and guarded against.Mine inflow estimation has been carried out through groundwater dynamics and analogue methods.Through the analysis and comparison of the two methods,suggesting the estimated normal and maximum mine inflow results of analogue method can be the mine design considerations.