武安盆地南部单元岩溶地下水资源均衡分析

Equilibrium Analysis of Karst Groundwater Resources in the Southern Unit of Wu'an Basin

武安盆地地处华北邯邢地区,属黑龙洞岩溶地下水系统的一部分。天然条件下,盆地内奥陶系灰岩地下水与区域地下水联系密切。自上世纪六七十年代后,区域地下水开采量逐年增大,随着奥灰岩地下水位大幅下降,盆地内的地下水环境发生了很大变化,但水文地质边界条件更加清晰明朗。现阶段,盆地南部呈一个四周封闭的次一级的水文地质单元。结合实际资料数据,对盆地南部单元内岩溶地下水资源进行均衡分析计算,其结果对岩溶地下水资源的评价及本地矿山水文地质研究具有积极指导意义。

Wu＇an Basin is located in Hanxing area of North China and is part of the karst groundwater system in the Black Dragon Cave. Under natural conditions, the Ordovician limestone groundwater in the basin is closely related to regional groundwater. Since the 1960 s and the 1970 s, the amount of groundwater in the area has increased year by year. With the significant drop of the limestone groundwater level, the groundwater environment in the basin has had great changes, but the hydrogeological boundary conditions have become clearer and clearer. At this stage, a sub-level hydrogeological unit is enclosed in the south of the basin. Based on the actual data, the karst groundwater resources in the southern unit of the basin are balanced and calculated. The results are of positive significance to the evaluation of karst groundwater resources and the study of the local mine hydrogeology.