›› 2007, Vol. 28 ›› Issue (6): 1091-1094.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

An elastoplastic softening model of structured soil

ZENG Jun-jun1, LU Ting-hao2   

  1. 1. Shanghai Geotechnical Investigation & Design Institute Co. Ltd., Shanghai 200002, China; 2. Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China
  • Received:2005-04-20 Online:2007-06-11 Published:2013-09-13

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Abstract: By putting some amount of cement into soil sample, natural structured soil with macro-pores is simulated. Based on the compressive tests of different stress paths, the initially yielding curve is confirmed according to the yielding stresses of a certain stress paths, as well as the direction of the increment of plastic strain after yielding. Furthermore the hardening law is presented in accordance with the result of the triaxial drained tests. An elastoplastic softening model which can simulate the effect of the soil structure is proposed. In addition, the model is verified by the test data.

Key words: structure, cement, stress path, strain softening, constitutive model

CLC Number: 

  • TU 441
  • 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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