Numerical simulation of clastic grain flow along a slope

LU Xiao-bing; ZHANG Xu-hui; CUI Peng

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Numerical simulation of clastic grain flow along a slope

更新时间：2026-06-25

- Numerical simulation of clastic grain flow along a slope
- Vol. 30, Issue S2, (2009)
- 作者机构：
  
  1. 中国科学院力学研究所,北京,100080
  2. 中国科学院山地灾害与环境研究所地表过程与山地灾害重点实验室,成都,610041
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU441
- Online First：21 June 2011，
  
  Published：2009
- 稿件说明：
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LU Xiao-bing, ZHANG Xu-hui, CUI Peng. Numerical simulation of clastic grain flow along a slope[J]. 2009, 30(S2).
DOI：

LU Xiao-bing, ZHANG Xu-hui, CUI Peng. Numerical simulation of clastic grain flow along a slope[J]. 2009, 30(S2). DOI：

摘要

根据Savage提出的碎屑流运动方程，分析了碎屑流沿坡面下滑过程中的运动特性，包括速度分布和高度分布的变化。重点考察了床面摩擦系数、土体内摩擦角、初始运动速度和坡角等因素对碎屑流运动形态的影响。研究表明，在不同的因素组合情况下，碎屑体的运动形态有明显的区别。土体内摩擦角和坡角对碎屑流的运动形态和最大运动距离影响明显。相对来说，床面摩擦角对碎屑流的最大运动距离影响不明显，这可能是因为床面摩擦只影响靠近床面的部分物质的运动

Abstract

The characteristics of clastic grain flow along a non-uniform slope have been discussed based on the controlling equation presented by Savage. The effects of bed friction coefficients

internal friction angles of clastic flow

initial velocity and the slope angle are mainly analyzed. It is shown that the movement of clustic flow is obviously different under different combinations of factors. The internal friction angle and the slope angle affect the movement configuration and the maximum movement distance obviously. However

the bed friction affects the maximum distance little because it only affects the grains near the bed.

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Related Author

LU Xiao-bing1

WANG Yi-hua1

WANG Shu-yun1

CUI Peng2

DONG Hui

CHEN Jia-bo

YANG Guo-yue

FU He-lin

Related Institution

1 Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080,China: 2 Institute of Mountain Hazard and Environment, Chinese Academy of Sciences

中国科学院山地灾害与环境研究所

College of Civil Engineering and Mechanics, Xiangtan University

School of Civil Engineering and Architecture, Central South University

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