两水源地间相互影响的数值评价

Numerical Evaluation of the Interaction between Two Water Sources

四柏树水源地和炼油厂水源地是靖边县的主要供水水源。两水源地处于同一水文地质单元且相距较近,地下水联系较为紧密。为了更好地为地下水资源的可持续开发提供依据,利用Modflow软件建立区域地下水流数值模型,并运用模型分析了不同开采条件下两水源地的相互影响评价。结果表明:两水源地均属开采"消耗"型水源地;区域上地下水位(头)近于等幅下降,水源地开采区内大致以芦河为界分别形成两个以水源地开采区为中心地下水降落漏斗;随着水源地开采量的增加,两水源地水位(头)降均呈逐渐增大的趋势,相互的影响也越来越显著。

Groundwater in the Sibaishu and Refinery water sources provides main sources of water supply for Jingbian county.The groundwater hydraulic connection of two water sources which are in the same hydrogeologic unit is much closer.For the purpose of formulation of sustainable groundwater development plan,a regional groundwater flow model was constructed for the area with Modflow software.Under the program of different increasing exploitations,the interaction between two water sources was analyzed by the model.The results of this study showed that two water sources belonged to mining consumption type.In region,the groundwater head droped with the same extent,two groundwater drawdown funnels as the center of mining areas are formed by Lu River as the boundary.With the increase of water exploitation,the head of two water sources is gradually increased and the interaction becomes more and more significant.