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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2005, Vol. 6 Issue (3): 181-187    DOI: 10.1631/jzus.2005.A0181
Civil Engineering     
Nonlinear analysis of consolidation with variable compressibility and permeability
ZHUANG Ying-chun, XIE Kang-he, LI Xi-bin
Institute of Geotechnical Engineering, School of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310027, China
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Abstract  Terzaghi gave a theory of soil consolidation based on the effective stress principle, which was derived on several ideal assumptions to get a simplified theory. To avoid the limitations involved in Terzaghi’s theory, many efforts are being made by scholars to solve the problems in practical engineering situations. This paper presents a generalized theory for one dimensional consolidation of saturated soft clay with variable compressibility and permeability. The semi-analytical solution presented here takes into account the well known empirical e-logk and e-logp′(σ′) relations under instantaneous loading. Study of the consolidation behaviors showed that the ratio of Cc and Ck (the slope of e-logp and e-logk respectively) govern the ratio of consolidation. A simulative laboratory investigation with GDS advanced consolidation system was made to analyze the clay consolidation process and compare the results with the semi-analytical solution.

Key words： Compressibility      Consolidation      Nonlinear      Permeability     
Received: 06 May 2004     
CLC:  TU411  
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ZHUANG Ying-chun
XIE Kang-he
LI Xi-bin
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ZHUANG Ying-chun, XIE Kang-he, LI Xi-bin. Nonlinear analysis of consolidation with variable compressibility and permeability. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2005, 6(3): 181-187.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2005.A0181     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2005/V6/I3/181

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