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Volume 38 Issue 3
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BI Yu-zhang, HE Si-ming, LI Xin-po, WU Yong, WANG Dong-po, FU Yue-sheng. Kinetic mechanism of mixed particles under constraint conditions[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(3): 529-536. DOI: 10.11779/CJGE201603017
Citation: BI Yu-zhang, HE Si-ming, LI Xin-po, WU Yong, WANG Dong-po, FU Yue-sheng. Kinetic mechanism of mixed particles under constraint conditions[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(3): 529-536. DOI: 10.11779/CJGE201603017
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Kinetic mechanism of mixed particles under constraint conditions

  • 1. Key Laboratory of Mountain Hazards and Earth Surface Process, Chinese Academy of Sciences, Chengdu 610041, China;
    2. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences & Ministry of Water Resources, Chengdu 610041, China;
    3. CAS Center for Excellence in Tibetan Plateau Earth Science, Beijing 100101, China;
    4. College of Zijin Mining, Fuzhou University, Fuzhou 350116, China;
    5. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China

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  • Received Date: December 15, 2014
  • Published Date: March 24, 2016
    Graphical Abstract
    • Abstract
  • Granular materials flow remains an outstanding issue in both nature and industry where typically a range of particle sizes are involved. The mixing and segregation processes of binary granular mixture with particles of identical sizes and with different densities subjected to vertical oscillatory excitation are investigated. The DEM experiments are conducted in the PFC3D, and the material parameters are fixed through the comparison between the numerical and laboratory experiments. Firstly, the deposition patterns of particles in different constraint chutes are studied. Secondly, the kinetic mechanism between uniform particles and mixed particles is compared, and the regular patterns are revealed. Finally, different kinetic mechanisms of the particles in different constraint chutes are studied, and it is proved that the mixed particles under constraint conditions get more kinetic energies and have a longer runout.
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    • References (16)
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