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Prediction of groundwater flow field in the west suburb of Beijing before and after the South-to-North Water Diversion
Author(s): ZHENG Jia~1, DOU Yanbing~2, SHAO Jingli~1, CUI Yali~1(1.schoolofwaterresources&environment, CHINA Universityofgeosciences, BEIJING 100083, china, 2.BEIJING Hydrologiccenter, BEIJING 100089, china)
Pages: 35-
39
Year: 2009
Issue:
5
Journal: Geotechnical Investigation & Surveying
Keyword: 南水北调; 北京; 地下水; 数值模拟; 趋势预测;
Abstract: 本文对北京西郊南水北调受水区进行了地下水数值模拟和流场趋势预测,为其地下水合理开发利用提供了依据。首先建立了研究区水文地质概念模型,将模型概化为潜水含水层和承压含水层。运用地下水模型软件GMS建立了地下水数值模拟模型,并对模型进行了模拟和预测。预测结果表明,在南水北调供水前,地下水位持续小幅下降;南水北调供水后,地下水储存量增加了4.2×108m3,地下水位平均上升幅度为6.24m。其中,在研究区北部地下水集中开采区地下水上升幅度最大,一般为8~10m,在研究区南部上升幅度较小,一般为3~4.5m。
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