›› 2008, Vol. 29 ›› Issue (11): 2939-2944.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on constitutive model for dilatant sand

CHI Ming-jie1, 2, ZHAO Cheng-gang1, LI Xiao-jun2   

  1. 1. School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044, China; 2. Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China
  • Received:2007-03-27 Online:2008-11-10 Published:2013-08-07

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Abstract: Dense and mudium dense sands dilate under drained conditions and develop negative excess pore water pressure when sheared under undrained conditions. There exists a phase transformation line for dense and medium dense sand which characters the state from contractive to dilative. In the proposed model, the state parameter which makes the phase transformation line as reference line is introduced into the stress-dilatancy equation and the plastic hardening modulus expression to develop a new constitutive model for dilatant sand, 9 model parameters which are convenient to be calibrated are involved. The numerical simulation is in good agreement with the data of triaxial compression tests.

Key words: sand, constitutive model, dilatancy equation, phase transformation line, state parameters

CLC Number: 

  • TU 411
  • 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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