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Groundwater Pumping Test and Design of Foundation Pit Dewatering

WU Yong-xia

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Abstract

The Yangtze River delta region has a thick deposits of the quaternary sediment layer,high groundwater table,abundant groundwater recharge,and complicated groundwater flowing condition.In this paper,a groundwater pumping test in a deep foundation pit was conducted to determine hydrogeological parameters. The 3-D groundwater flow model-Visual MODFLOW,was used in the pit area of the Xincun Station along 7th line of Shanghai subway.A multi-layer groundwater model was developed to determine the optimal dewatering scheme.

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What this paper is about

The Yangtze River delta region has a thick deposits of the quaternary sediment layer,high groundwater table,abundant groundwater recharge,and complicated groundwater flowing condition.In this paper,a groundwater pumping test in a deep foundation pit was conducted to determine hydrogeological parameters. The 3-D groundwater flow model-Visual MODFLOW,was used in the pit area of the Xincun Station along 7th line of Shanghai subway.A multi-layer groundwater model was developed to determine the optimal dewatering scheme.

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Available abstract

The Yangtze River delta region has a thick deposits of the quaternary sediment layer,high groundwater table,abundant groundwater recharge,and complicated groundwater flowing condition.In this paper,a groundwater pumping test in a deep foundation pit was conducted to determine hydrogeological parameters. The 3-D groundwater flow model-Visual MODFLOW,was used in the pit area of the Xincun Station along 7th line of Shanghai subway.A multi-layer groundwater model was developed to determine the optimal dewatering scheme.

Key concepts: Groundwater recharge, Groundwater, MODFLOW, Dewatering, Hydrogeology, Groundwater flow, Water table, Foundation (evidence)

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