上海交通大学学报 ›› 2021, Vol. 55 ›› Issue (4): 421-433.doi: 10.16183/j.cnki.jsjtu.2019.329

所属专题: 《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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颗粒柱坍塌运动与堆积特性的研究综述

来志强1,2, 江恩慧1, 赵连军1(), 周伟3, 田文祥3, 马刚3   

  1. 1.黄河水利科学研究院 水利部黄河泥沙重点实验室, 郑州 450003
    2.中国科学院 地理科学与资源研究所,北京 100101
    3.武汉大学 水资源与水电工程科学国家重点实验室, 武汉 430072
  • 收稿日期:2019-11-15 出版日期:2021-04-28 发布日期:2021-04-30
  • 通讯作者: 赵连军 E-mail:zhaolianjun88@163.com
  • 作者简介:来志强(1990-),男,河南省安阳市人,工程师,现主要从事颗粒流理论及数值模拟研究工作
  • 基金资助:
    国家自然科学基金青年科学基金项目(51909102);国家自然科学基金青年科学基金项目(51539004);中央级公益性科研院所基本科研业务费专项项目(HKY-JBYW-2019-02);第四届中国科协青年人才托举工程全额资助项目(201938);河南省博士后基金(020101070019);“十三五”国家重点研发计划项目(2017YFC0405204);“十三五”国家重点研发计划项目(2018YFC040720203)

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

摘要:

通过总结国内外有关颗粒柱坍塌运动模型的研究成果,分析了颗粒柱初始空间形态特征、颗粒基本物理特性、模型边界及环境条件等因素对颗粒柱运动堆积特性的影响规律及作用机制.颗粒柱的运动距离和堆积高度与其初始宽高比之间存在显著的线性及幂函数关系,高、低颗粒柱坍塌运动模式和能耗机制差异显著.颗粒粒径、颗粒刚度、颗粒破碎与颗粒潮湿等因素对颗粒柱坍塌运动与堆积特性的影响规律已基本达成共识.不同的挡墙约束条件、由气体掺入导致的流态化现象以及水体环境影响下颗粒柱运动的堆积特征已有初步的研究成果.但是有关颗粒柱初始孔隙率、颗粒摩擦因数、挡墙摩擦因数对颗粒柱运动堆积特性影响的结论仍存在分歧.综观当前的研究成果,颗粒受力特性与运动机制存在内联关系,复杂颗粒形状、可侵蚀床面、颗粒密度和水动力条件等对颗粒柱坍塌运动与堆积特性的作用机理均是未来的研究重点.

关键词: 颗粒柱坍塌模型, 运动机制, 堆积特性, 颗粒物质

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

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