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以鄂尔多斯市台格庙矿区为例,研究多层含水系统水文地质参数和边界条件特征,运用Visual Modflow软件建立研究区三维地下水数值模型,采用钻孔抽水实验资料及矿区初始流场分布数据完成了模型识别和校正。针对以往疏降水量预测未考虑采动后水文地质条件变化的问题，基于导水裂隙带发育高度与顶板隔水层的侵入关系确定了疏降含水层层位和区域对矿区，对矿区7个井田2、3煤层顶板含水层在天然状态和采动状态下的疏降水量进行了预测，结果表明：采动状态下顶板含水层疏降水量明显增大，开采前需要对顶板含水层水位进行疏降，且水位疏降会对当地居民饮用水含水层造成一定的影响。
Taking Taigmiao Mining Area in Erdos Municipality as an example, the hydrogeological parameters and boundary conditions of multi-layer aquifer system are studied. Three-dimensional numerical model of groundwater is established by using Visual Modflow software. The experimental data of borehole pumping and the initial flow field distribution in the mining area are used Model identification and correction. Aiming at the problem that the former precipitation does not take into account the change of hydrogeological conditions after mining, based on the relationship between the development height of the aqueduct and fracture zone and the intrusion of roof aquitard, the strata and area of drainage aquifer are determined. The results show that the dewatering amount of top aquifers is obviously increased under mining condition, and the water level of roof aquifer should be conducted before mining Dredging, and dredging water levels will have some impact on the drinking water aquifer of local residents.