跨流域调水工程对小流域输水线路影响分析

Analysis of influence of inter-basin water transfer project on water transmission lines in small watersheds

文章以引江济淮沙颍河输水线路工程为例,利用竖管法实验计算沙颍河流域河床沉积物渗透系数,建立了沙颍河输水线路地下水模型。模拟调水工程完工后水位的变化和潜在点污染源镍的迁移规律以及预测,以评估跨流域调水工程对地下水的影响。结果表明,调水工程施工前后对流域的水文条件影响较小,对地下水水质的影响不显著。

Taking the Shaying River water transmission line project of Water Diversion from Yangtze River to Huaihe River as an example, this paper calculates the sediment permeability coefficient of Shaying River basin by means of standpipe method, and establishes the groundwater model of Shaying River water transmission line. In order to evaluate the influence of inter-basin water transfer project on groundwater, the change of water level and the migration of nickel from potential point pollution source are simulated and predicted. The results show that the water diversion project has little influence on the hydrological conditions of the basin before and after construction, and has no significant influence on the water quality of the groundwater source.