A Constitutive Model for Unsaturated Soils Based on SFG Approach

Yan Liu

doi:10.4028/www.scientific.net/AMM.256-259.11

Paper Titles

Analysis of the Mindlin Plate and Identification of the Soil Parameter for Foundation with Gradient Optimizing Method
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A Constitutive Model for Unsaturated Soils Based on SFG Approach
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Application of Weibull Distribution in Calculating Ground Deformation
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Numerical Simulation on the Three-Dimensional Seepage Field of Zhelamuqing Tailings Dam
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Slope Anchoring Technology in China: State of the Art Report and its Prospect
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Analysis of Influence Factors of Slope Stability
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Variable Rigidity Pile (Pile Partner) Deal with Unconfined Direct and Indirect Footing (Foundation)
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Experimental Research on Shear Strength of Subgrade Soil and Plasticity Index under Different Freeze-Thaw Cycles
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 256-259A Constitutive Model for Unsaturated Soils Based...

A Constitutive Model for Unsaturated Soils Based on SFG Approach

Abstract:

A constitutive model for unsaturated soils is developed. Based on the SFG approach, the deduced LC curve has a smooth transition from saturated state to unsaturated state. The yield stress does not increase with increasing suction monotonically, and thus could reproduce plastic volume change of a slurry soil caused by drying. The model takes account of the effect of saturation, lead to different yield surface for wetting and drying. Soils with same suction but different saturation can have different yield stress. The model is used to simulate exited test data and the predicted curves agree well with the data points.

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Periodical:

Applied Mechanics and Materials (Volumes 256-259)

Pages:

11-14

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.256-259.11

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Online since:

December 2012

Authors:

Yan Liu

Keywords:

Constitutive Model, SFG Approach, Unsaturated Soil

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References

[1] E.E. Alonso, A. Gens and A. Josa. Géotechnique, 40(1990): 405–430.

Google Scholar

[2] D. Sheng, D. G. Fredlund and A. Gens. Canadian Geotechnical Journal, 45(2008): 511–534.

Google Scholar

[3] D. Gallipoli, A. Gens, R. Sharma and J. Vaunat. Géotechnique, 53(2003): 123-135.

Google Scholar

[4] Y. Liu: Study on the principle of generalized effective stress and constitutive modeling of unsaturated soils. Ph.D. thesis, Beijing (2011), in Chinese.

Google Scholar

[5] M. R Cunningham, A. M. Ridley, K. Dineen and J.B. Burland. Géotechnique, 53(2003): 183-194.

Google Scholar