Journal of Shanghai Jiao Tong University ›› 2021, Vol. 55 ›› Issue (4): 421-433.doi: 10.16183/j.cnki.jsjtu.2019.329

Special Issue: 《上海交通大学学报》2021年12期专题汇总专辑 《上海交通大学学报》2021年“工程力学”专题

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Review of Movement and Accumulation Characteristics of Granular Column Collapse

LAI Zhiqiang1,2, JIANG Enhui1, ZHAO Lianjun1(), ZHOU Wei3, TIAN Wenxiang3, MA Gang3   

  1. 1. Key Laboratory of Yellow River Sediment of Ministry of Water Resources, Yellow River Institute of Hydraulic Research, Zhengzhou 450003, China
    2. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    3. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China
  • Received:2019-11-15 Online:2021-04-28 Published:2021-04-30
  • Contact: ZHAO Lianjun E-mail:zhaolianjun88@163.com

Abstract:

Domestic and foreign relevant literatures of granular column collapse movement models are concluded to analyze the effects of initial spatial characteristics, essential physical properties of particles, boundaries, and environment conditions of model on the movement and accumulation characteristics of granular columns. Besides, the related mechanisms of movement and accumulation characteristics of granular columns are also analyzed. Remarkable linear and power relationships exist between the movement distance and the aspect ratios of initial height to initial width. Similarly, remarkable linear and power relationships exist between accumulation height and aspect ratio of initial height to initial width. The movement patterns and energy consumption mechanisms for granular columns with large aspect ratios are significantly different from those with small aspect ratios. A consensus has basically been reached concerning the effect of particle size, particle stiffness, particle breakage, and wet particles on the movement and accumulation characteristics of granular columns. Some preliminary research achievements of the effects of different wall constraints, fluidization phenomenon due to the gas mixing and water condition on the movement and accumulation characteristics of granular column are obtained. However, there still exist disagreements in the conclusions about the influences of initial porosity of granular column, particle friction, and wall friction on the movement and accumulation characteristics of granular column. A review of the current research indicate that the research in the future will be focused on the relationship between forces acted on particles and movement regimes. The mechanisms of the effect of complex particle shape, surface, particle density, and water movement conditions on the movement and accumulation characteristics of granular column collapse will also be focused on in the future.

Key words: granular column collapse model, movement mechanism, accumulation characteristics, granular materials

CLC Number: