›› 2007, Vol. 28 ›› Issue (9): 1943-1948.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on parabolic yield-surface creep constitutive model of artificial frozen soil

LI Dong-wei1, WANG Ren-he1, ZHAO Yan-hui2, HU Pu3   

  1. 1. Department of Civil Engineering, Anhui University of Science and Technology,Huainan 232001, China; 2. Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China；3.Construction Department of Anhui Province, Hefei 230001, China
  • Received:2005-11-26 Online:2007-09-10 Published:2013-10-15

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Abstract: The triaxial creep experiment of artificial frozen soil in deep alluvium is performed by using self-developed a W3Z-200 apparatus of triaxial creep frozen soil. Analyzing the experiment results, applying parabolic yield criterion for improved viscoplasticity in the Nishihara model and coupling degree of temperature, a new creep constitutive model is established for describing frozen-soil's creep characteristics under the complicated stress state. The model is embedded in nonlinear ADINA finite element program in order to numerically analyze easily. Numerical simulation of the shaft well excavation process and field measurements of deformation of deep soil frozen wall are performed in Huainan Mine; and the results show that the established parabolic yield-surface constitutive model is correct and reasonable for FEM numerical simulation of deep soil frozen wall.

Key words: complex stress condition, triaxial compressive creep；parabolic yield-surface；artificial frozen soil

CLC Number: 

  • TD 265.3
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
[1] LUO Ya-sheng, LI Ping, HU Zhong-you. Variation properties of soil structure under triaxial complex stress condition [J]. , 2006, 27(S2): 595-600.
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