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Volume 37 Issue 12
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SUN Lei, WANG Jun, GU Chuan, GUO Lin. Coupling effects of cyclic deviator stress and cyclic confining pressure on deformation behaviour of saturated clay[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(12): 2198-2204. DOI: 10.11779/CJGE201512009
Citation: SUN Lei, WANG Jun, GU Chuan, GUO Lin. Coupling effects of cyclic deviator stress and cyclic confining pressure on deformation behaviour of saturated clay[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(12): 2198-2204. DOI: 10.11779/CJGE201512009
shu

Coupling effects of cyclic deviator stress and cyclic confining pressure on deformation behaviour of saturated clay

  • 1. Coastal City and Geotechnical Engineering Research Center, Zhejiang University, Hangzhou 310058, China;
    2. College of Civil Engineering and Architecture, Wenzhou University, Wenzhou 325035, China

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  • Received Date: November 23, 2014
  • Published Date: December 19, 2015
    Graphical Abstract
    • Abstract
  • A series of partially drained cyclic triaxial tests under coupling of cyclic deviator and cyclic confining pressure are performed on typical Wenzhou soft clay by using GDS cyclic triaxial apparatus. The coupling effects of cyclic deviator and cyclic confining pressure on the partially drained cumulative plastic strain of saturated clay are studied. The experimental results show that under partially drained condition, compared to that of the conventional CCP tests, coupling of cyclic deviator stress and cyclic confining pressure expedites the accumulation of cumulative plastic strain with the increase of confining pressure amplitude, and the increase of the ratio of cyclic confining pressure to cyclic deviator stress of 2/3 will induce an increment of 32% in the cumulative plastic strain. On the basis of the experimental results obtained, an empirical formula incorporating the coupling effect of cyclic deviator stress and variable confining pressure is proposed to estimate the cumulative plastic strain in the partially drained cyclic tests.
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    • References (22)
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