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Interpretation of increased deformation rate in aquifer IV due to groundwater pumping in Shanghai

Shen, Shuilong ; Ma, Lei ; Xu, Yeshuang ; Yin, Zhenyu Marckmann, Gilles (Editor)

Canadian Geotechnical Journal, 2013, Vol.50(11), pp.1129-1142 [Periódico revisado por pares]

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  • Título:
    Interpretation of increased deformation rate in aquifer IV due to groundwater pumping in Shanghai
  • Autor: Shen, Shuilong ; Ma, Lei ; Xu, Yeshuang ; Yin, Zhenyu
  • Marckmann, Gilles (Editor)
  • Assuntos: Engineering Sciences ; Mechanics ; Engineering Sciences ; Materials ; Groundwater Pumping ; Hydraulic Gradient ; Aquifer IV Deformation ; Shear Stress ; Volumetric Contraction ; Engineering
  • É parte de: Canadian Geotechnical Journal, 2013, Vol.50(11), pp.1129-1142
  • Descrição: Shanghai is a typical example of a region in China suffering from severe land subsidence. Previous investigations have shown that land subsidence is strongly related to groundwater pumping in both the temporal and spatial domains. A series of field investigations shows that the deformation rate of aquifer IV (AqIV) has increased, contributing significantly to the total subsidence in Shanghai. To predict the deformation behavior of AqIV in Shanghai due to groundwater pumping, four different models have been applied in this study: (i) a model based on groundwater flow theory, (ii) an elastic model based on Cauchy mechanics, (iii) a creep model incorporated into Cauchy mechanics, and (iv) a recently proposed land subsidence model by Budhu based on Cosserat mechanics. Based on a number of assumptions, Budhu’s concept was extended to consider the time-dependent behavior of groundwater potential in aquifers and the consolidation behavior of overburdened aquitards. The calculated...
  • Idioma: Inglês

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