›› 2006, Vol. 27 ›› Issue (S1): 1103-1106.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Elastoplastic softening constitutive model of unsaturated loess

HU Zai-qiang1，ZHANG Teng1,2，ZHU Yi-yun1，CHEN Cun-li1   

  1. 1. Institute of Geotechnical Engineering，Xi'an University of Technology，Xi'an 710048，China； 2. Xi'an Design and Research Institute of Coal Industry，Xi'an 710054，China
  • Received:2005-10-01 Published:2006-12-15

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Abstract: Through conventional triaxial test and equal stress-ratio pressure test of intact loess sample, base on the result of the stress-strain characteristics curve analysis, the yield function of the model is directly determined from experimental data. According to the Drucker’s postulation, the elastoplastic model of unsaturated loess is proposed by selecting proper hardening parameter, and carried on the comparison analysis of the test result and the model computed result. The results show that the model can simulate the softening phenomenon which is related with the consolidated stress; and the results of the calculation coincide with the results of tests.

Key words: unsaturated loess, elastoplasticity, constitutive model

CLC Number: 

  • TU 443
  • 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.
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