Three-Dimension Rheological Model and Parameters Solving for Unsaturated Soil

Abstract:

Based on the three-dimension rheological model for unsaturated soil the constitutive equations are deduced by Laplace transformation. Then the time-dependent analytic expressions of vertical strain and lateral total stress in confined compression situation are also obtained. The modified confined rheological test has been carried out to get time-varying data of vertical strain and lateral total stress. Thus all the model parameters in the constitutive model can be calculated by the methods of curve fitting and formula inversion. At last, the method of the parameters solving is proved reasonable by an example.

• Periodical: Advanced Materials Research (Volumes 368-373)
• Pages: 2698-2701
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.368-373.2698
• Online since: October 2011
• Authors: Guan Feng Tian
• Keywords: Confined Rheological Test, Parameter Solving, Three-Dimension Rheological Model, Unsaturated Soil

References

[1] Jun Sun: Rheology and Engineering Application of Geomaterials In Chinese. (China Building Industry Press , Beijing 1999)

[2] Bahar R, Cambou B. Computers and Geotechnics. Vol.17(1995), p.507

[3] Xiaoping Chen, Shiwei Bai: Chinese Journal of Rock Mechanics and Engineering. Vol.22(2003),p.728.

[4] Honggui Wang, Limin Wei, Xiaoguang He: Chinese Journal of Geotechnical Engineering. Vol.28(2006),p.669

[5] Fredlund D G, Rahardjo H. Soil Mechanics for Unsaturated Soils. (John Wiley and Sons Inc, New York 1993).

[6] Qihong Wang et al. Rheology of Material In Chinese. (China Building Industry Press , Beijing 1985),p.19