Equation of motion and soil pressure for sand-sliding slope composed by granular clast (Part III of sand-sliding slope series)

WANG Cheng-hua; QUE Yun; XU Jun; Li Xin-po

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Equation of motion and soil pressure for sand-sliding slope composed by granular clast (Part III of sand-sliding slope series)

更新时间：2026-06-25

- Equation of motion and soil pressure for sand-sliding slope composed by granular clast (Part III of sand-sliding slope series)
- Vol. 28, Issue 7, (2007)
- 作者机构：
  
  1. 中国科学院水利部成都山地灾害与环境研究所,成都,610041
  2. 重庆交通学院,重庆,400074
  3. 中国科学院研究生院,北京,100039
- 作者简介：
- 基金信息：
- DOI：
  CLC： P642.2
- Online First：13 September 2013，
  
  Published：2007
- 稿件说明：
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WANG Cheng-hua, QUE Yun, XU Jun, et al. Equation of motion and soil pressure for sand-sliding slope composed by granular clast (Part III of sand-sliding slope series)[J]. 2007, 28(7).
DOI：

WANG Cheng-hua, QUE Yun, XU Jun, et al. Equation of motion and soil pressure for sand-sliding slope composed by granular clast (Part III of sand-sliding slope series)[J]. 2007, 28(7). DOI：

摘要

在溜砂坡系列研究之二的基础上，对风干砂的运动特征进行了细致观察。将干砂流视为连续介质的流动，对干砂流的运动动力和阻力进行了深入研究，建立了干砂流垂线流速分布方程和干砂流体底面、表面滑动速度方程。结合挡砂工程，将干砂流体视为沿底面（此种砂坡的天然休止角）滑动的三角体，从而导出粒状碎屑溜砂坡水平土压力（或水平推力）计算模型。

Abstract

The motion and soil pressure of air dried sands are studied based on field observations and investigations. First

the driving and resisting forces for movement of dry sands

which is regarded as a continuous medium that can flow

are analysed thoroughly. Then the equations for velocity distribution along vertical direction of the dry sand flow and that for velocity of sand mass sliding along the subface and top surface are derived. Finally

a calculation model for the horizontal earth pressure of granular flowing class or sands on the retaining wall is derived in connection with practical retaining works

in which the dry sands are treated as a triangular body.

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