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CLC number: TU433

On-line Access: 2013-06-03

Received: 2012-12-14

Revision Accepted: 2013-04-10

Crosschecked: 2013-05-16

Cited: 2

Clicked: 5471

Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE A 2013 Vol.14 No.6 P.435-446


One-dimensional nonlinear consolidation of soft clay with the non-Darcian flow*

Author(s):  Chuan-xun Li1,2, Kang-he Xie2

Affiliation(s):  1. Faculty of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang 212013, China; more

Corresponding email(s):   lichuanxun@yeah.net

Key Words:  Non-Darcian flow, Nonlinear consolidation, Time-dependent loading, Uniform distribution of self-weight stress, Linear increment of self-weight stress

Chuan-xun Li, Kang-he Xie. One-dimensional nonlinear consolidation of soft clay with the non-Darcian flow[J]. Journal of Zhejiang University Science A, 2013, 14(6): 435-446.

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author="Chuan-xun Li, Kang-he Xie",
journal="Journal of Zhejiang University Science A",
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%T One-dimensional nonlinear consolidation of soft clay with the non-Darcian flow
%A Chuan-xun Li
%A Kang-he Xie
%J Journal of Zhejiang University SCIENCE A
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%P 435-446
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%D 2013
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1200343

T1 - One-dimensional nonlinear consolidation of soft clay with the non-Darcian flow
A1 - Chuan-xun Li
A1 - Kang-he Xie
J0 - Journal of Zhejiang University Science A
VL - 14
IS - 6
SP - 435
EP - 446
%@ 1673-565X
Y1 - 2013
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A1200343

Based on the non-Darcian flow law described by exponent m and threshold gradient i 1 under a low hydraulic gradient and the classical nonlinear relationships e-lgσ′ and e-lgk v (Mesri and Rokhsar, 1974), the governing equation of 1D nonlinear consolidation was modified by considering both uniform distribution of self-weight stress and linear increment of self-weight stress. The numerical solutions for the governing equation were derived by the finite difference method (FDM). Moreover, the solutions were verified by comparing the numerical results with those by analytical method under a specific case. Finally, consolidation behavior under different parameters was investigated, and the results show that the rate of 1D nonlinear consolidation will slow down when the non-Darcian flow law is considered. The consolidation rate with linear increment of self-weight stress is faster than that with uniform distribution one. Compared to Darcy’s flow law, the influence of parameters describing non-linearity of soft soil on consolidation behavior with non-Darcian flow has no significant change.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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