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Volume 38 Issue 5
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LIU Meng-xin, YAO Xiao-liang, QI Ji-lin, MA Ling. 1D creep model for frozen soil taking account of stress history[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(5): 898-903. DOI: 10.11779/CJGE201605015
Citation: LIU Meng-xin, YAO Xiao-liang, QI Ji-lin, MA Ling. 1D creep model for frozen soil taking account of stress history[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(5): 898-903. DOI: 10.11779/CJGE201605015
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1D creep model for frozen soil taking account of stress history

  • 1. State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Beijing University of Civil Engineering and Architecture, Beijing100049, China;
    4 Beifang University of Nationalities, Yinchuan 750021, China

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  • Received Date: June 10, 2015
  • Published Date: May 24, 2016
    Graphical Abstract
    • Abstract
  • The stress history is a key factor influencing the mechanical behavior of frozen soil. A one-dimensional creep model for unfrozen soil considering the effect of stress history is modified to describe the creep behavior of frozen soil. Model parameters are obtained from K0 tests under different temperatures. Through the regression analysis, the relationships between model parameters and temperatures are established. The comparison between the calculated and tested results indicates that the modified creep model has a good agreement with the experimental results under different temperatures. At the same time, with the increase of overloading, this model can describe the sharp change of strain when the overloading is larger than the historical largest applied stress reasonably. So, the modified model can be a useful tool for the stability analysis and design of prosects in cold regions.
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    • References (18)
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