摘要
根据张掖东盆地水文地质条件和水源地地下水开发利用现状,采用Visual Modflow4.1软件分别建立地下水水流和水质模型,通过计算污染物污染负荷值确定运移污染质及其初始浓度,在水流模型预测水源地未来开采形成的稳定流畅环境下运行水质模型,模拟计算该污染质在规定时间内到达水源地捕获带的位置,运移100天的范围划定为水源地一级保护区,运移1 000天的范围划定为水源地二级保护区,二级保护区外补给边界划分为水源地的准保护区。
It was employed Visual Modflow4.1 software to establish the model of groundwater flow and quality based on hydrogeological conditions and groundwater utilization in the east basin of Zhangye,and to determine the contaminant migration and initial concentration through calculating pollutional load.The displacement of contaminant to the capture zone of water source within a certain interval time can be calculated by the quality stimulation model running under the environment predicted by the flow model on the basis of the future water exploitation activities,and it will be used as grading criteria to outline the first class protect zone where the migrating interval time is 100 day,the second class zone with 1 000 migration day,and quasi-protected areas between the boundary of the second zone and recharge area.
出处
《甘肃地质》
2011年第4期71-75,共5页
Gansu Geology
关键词
水流模型
水质模型
保护区划分
水源地保护
张掖市东郊水源地
flow model
water quality model
protection zone
water source protection
water source in the eastern suburbs of Zhangye City
