路基工程Issue(2)：108-113,6.DOI:10.13379/j.issn.1003-8825.202310005
基于降雨模型试验的砂土边坡侵蚀作用分析
Analysis on Erosion Effect of Sand Slope Based on Rainfall Model Test
段荣丰 1文登国1
作者信息
- 1. 中国市政工程西南设计研究总院有限公司,成都 610036
- 折叠
摘要
Abstract
The indoor rainfall model test was analyzed in such a way that a new device was developed to simulate the impact force,velocity and kinetic energy of falling raindrops and a laser particle size analyzer was adopted to characterize the size of sediment in runoff.The result shows that,there is an active response between soil moisture change and soil suction,that is,the decrease of soil moisture content increases soil suction;as the permeability decreases,the soil surface becomes denser,which affects the impact force,runoff and soil loss under rainfall.In the control soil suction test,small-sized soil particles fall off from the soil surface;when runoff is not generated,soil suction dominates and does not suddenly disappear with the continuation of rainfall.关键词
降雨/侵蚀/模型试验/冲击力/吸力Key words
rainfall/erosion/model test/impact force/suction分类
农业科技引用本文复制引用
段荣丰,文登国..基于降雨模型试验的砂土边坡侵蚀作用分析[J].路基工程,2025,(2):108-113,6.
