山区沿河公路弯道岸坡泥沙起动规律研究  

Study on laws of incipient motion for sediment on sloping river bend of mountain riverside highway

作　　者：钟亮[1] 许光祥[1] 童思陈[1] 

机构地区：[1]重庆交通大学河海学院,重庆400074

出　　处：《水运工程》2009年第10期14-19,共6页Port & Waterway Engineering

基　　金：交通部科技项目(200432981413)

摘　　要：采用理论分析和模型试验相结合的方法,探讨了山区沿河公路弯道岸坡泥沙的起动规律,提出了泥沙起动核和起动带的概念,绘制了弯道泥沙相对起动流速等值线图,得到了弯道岸坡泥沙最容易起动的沿程部位和横向部位,为山区沿河公路弯道岸坡防护设计和综合治理提供了有益指导。The laws of incipient motion for sediment on sloping river bend of mountain riverside highway are discussed by adopting the methods of theoretical analysis and model experiment, and the conceptions of starting nucleus and starting zone are proposed. Additionally, the relations of required flow for the incipient motion of sediment on optional positions of sloping river bend and the entrance section are achieved, together with the relative incipient velocity contour charts and the important protective parts. It is expected to serve as a valuable reference for the protective design and comprehensive control of sloping river bend on mountain riverside highway in the future.

关 键 词：弯道岸坡 泥沙 起动规律 

分 类 号：TV142.1[水利工程—水力学及河流动力学]