Articles | Volume 372
https://doi.org/10.5194/piahs-372-399-2015
https://doi.org/10.5194/piahs-372-399-2015
12 Nov 2015
 | 12 Nov 2015

Research on the deformation of a confined aquifer based on Cosserat continuum mechanics

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

Related authors

Investigation of alternative mechanisms of aquifer-system compaction and land subsidence in Shanghai
Y. Yuan, Y.-S. Xu, S.-L. Shen, and N. Zhang
Proc. IAHS, 372, 13–15, https://doi.org/10.5194/piahs-372-13-2015,https://doi.org/10.5194/piahs-372-13-2015, 2015
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Cited articles

Budhu, M. and Adiyaman, I. B.: Mechanics of land subsidence due to groundwater pumping, Int. J. Numer. Anal. Meth., 34, 1459–1478, 2010.
Cai, Z. Y.: The deformation behavior of sand, Yellow River Conservancy Press, China, 172 pp., 2004.
Gong, S. L., Li., P. C., Wu, J. H., and Li, X. G.: Analysis of groundwater seepage field and stratum stress field of land subsidence in Shanghai, Journal of Liaoning Technical University: Natural Science, 28, 232–235, 2009 (in Chinese).
Shen, S. L., Ma, L., Xu, Y. S., and Yin, Z. Y.: Interpretation of increased deformation rate in aquifer IV due to groundwater pumping in Shanghai, Can. Geotech. J., 50, 1129–1142, 2013.
Wang, F., Miao, L. C., and Lv, W. H.: Study on the new deformation characteristics of the pumped aquifers in Su-Xi-Chang area, China, in: Geoenvironmental Engineering and Geotechnics (GSP 204), edited by: He, Q. and Shen, S. L., ASCE Press, Reston, Virginia, 57–62, 2010.
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Short summary
These exists a new phenomenon with continuous deformation in the sandy aquifers in Shanghai. Sharp hydraulic gradient would be formed in the aquifer and shear stresses would develop. Cumulated shear stress is one of the main factors that contribute to deformation within an aquifer. Cosserat continuum mechanics can be applied to analyse the mechanism of confined aquifer deformation controlled by accumulated shear stress.