Proceedings of IAHS
Proceedings of IAHS
PIAHS
Articles | Volume 372
Articles | Volume 372
https://doi.org/10.5194/piahs-372-13-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/piahs-372-13-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 372
12 Nov 2015
 | 12 Nov 2015

Investigation of alternative mechanisms of aquifer-system compaction and land subsidence in Shanghai

Y. Yuan, Y.-S. Xu, S.-L. Shen, and N. Zhang

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Short summary
Two additional alternative mechanistic models are proposed that involve principles of load transfer considering the temporally and spatially redistributed stresses associated with groundwater extraction: i) Cosserat continuum mechanism, considering shear force in the aquifer due to hydraulic gradients in the aquifer; and ii) internal erosion of fine-grained (clay and silt) particles within the aquifer. Initial results based on simulations incorporating Cosserat mechanics look promising.
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