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Volume 41 Issue S2
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ZUO Yong-zhen, JIANG Jing-shan, PAN Jia-jun, ZHAO Na, ZHOU Yue-feng. Deformation characteristics of coarse granular materials in large-scale true triaxial tests[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(S2): 37-40. DOI: 10.11779/CJGE2019S2010
Citation: ZUO Yong-zhen, JIANG Jing-shan, PAN Jia-jun, ZHAO Na, ZHOU Yue-feng. Deformation characteristics of coarse granular materials in large-scale true triaxial tests[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(S2): 37-40. DOI: 10.11779/CJGE2019S2010
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Deformation characteristics of coarse granular materials in large-scale true triaxial tests

  • 1. Key Laboratory of Geotechnical Mechanics and Engineering of Ministry of Water Resources, Changjiang River Scientific Research Institute, Wuhan 430010, China;
    2. School of Architectural Engineering, Nanjing Institute of Technology, Nanjing 211167, China

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  • Received Date: April 28, 2019
  • Published Date: July 19, 2019
    Graphical Abstract
    • Abstract
  • The deformation behaviors of coarse granular materials under three-dimensional stress state are crucial to the settlement of earth-rockfill dams. A series of tests under constant minor principle stress and constant coefficient of intermediate principle stress are conducted by the large-scale true triaxial test system. The test results show that the dilatancy of coarse granular materials is quite strong when the minor principle stress is small. The contraction of coarse granular materials is enhanced when the minor principle stress increases. The dilatancy becomes weaker when the coefficient of the intermediate principle stress increases from 0 to 0.5. But the dilatancy becomes a little bit of stronger when the coefficient of the intermediate principle stress increases to 0.75. The major principle strain behaves as contraction and the minor principle strain shows as dilatancy in all the large-scale true triaxial tests. The intermediate principle strain is compressed under the normal three-dimensional stress state. However, the dilatancy occurs in the direction of the intermediate principle stress under the conventional triaxial stress state.
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    • References (5)
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