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Volume 37 Issue 1
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Abstract
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ZHOU En-quan, WANG Zhi-hua, CHEN Guo-xing, LÜ Cong. Constitutive model for fluid of post-liquefied sand[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(1): 112-118. DOI: 10.11779/CJGE201501013
Citation: ZHOU En-quan, WANG Zhi-hua, CHEN Guo-xing, LÜ Cong. Constitutive model for fluid of post-liquefied sand[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(1): 112-118. DOI: 10.11779/CJGE201501013
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Constitutive model for fluid of post-liquefied sand

  • 1. Institute of Geotechnical Engineering, Nanjing University of Technology, Nanjing 210009, China; 2. Research Center of Urban Underground Space, Nanjing University of Technology, Nanjing 210009, China

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  • Received Date: April 28, 2014
  • Published Date: January 19, 2015
    Graphical Abstract
    • Abstract
  • The static load tests on post-liquefied saturated Nanjing fine sand are carried out using the hollow cylinder apparatus. The effect of the initial effective confining pressure and loading rate on the fluid characteristics of post-liquefied saturated Nanjing fine sand is taken into account. The results show that the development process of the shear stress and pore water pressure ratio have obvious two-stage characteristics in static loading process, and they have a a good linear relationship. The effective confining pressure and the static loading rate have obvious influence on the relationship between them. On this basis, a constitutive model for fluid with rate and pore water pressure-dependent static loading process is proposed. In this model the friction resistance between soil particles and the viscous resistance between soil and water are respectively expressed as the thixotropic shear-thinning fluid and non-time-variant shear-thinning fluid. Finally, experiments and comparisons between the predicted curves and other researchers′test results are carried out, indicating that the proposed constitutive model has good applicability.
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    • References (22)
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