Coarse Features and Degree of River Bed

Li Wen-ping; 曹叔尤; 刘兴年

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Coarse Features and Degree of River Bed

更新时间：2023-11-28

- Coarse Features and Degree of River Bed
- Advanced Engineering Sciences Vol. 41, Issue 5, Pages: 24-29(2009)
- 作者机构：
  
  1. 四川大学
  2. 四川大学水力学与山区河流开发保护国家重点实验室四川,成都,610065
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2009，
  
  Published Online：7 October 2008，
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李文萍,曹叔尤,刘兴年.河床冲刷粗化特征与粗化程度[J].工程科学与技术,2009,41(5):24-29.

Li Wen-ping, 曹叔尤, 刘兴年. Coarse Features and Degree of River Bed. [J]. Advanced Engineering Sciences 41(5):24-29(2009)
李文萍,曹叔尤,刘兴年.河床冲刷粗化特征与粗化程度[J].工程科学与技术,2009,41(5):24-29. DOI：

Li Wen-ping, 曹叔尤, 刘兴年. Coarse Features and Degree of River Bed. [J]. Advanced Engineering Sciences 41(5):24-29(2009) DOI：

摘要

中文摘要: 摘要：本文根据前人对暴露度和等效粒径研究的成果，选择适合于长江上游典型河段起动及输沙率公式，对各典型河段床沙粗化程度的参数A值进一步确定，通过分析可知，粗化程度A值在时间和空间上都存在变化规律，汛期粗化程度比枯水期小，并且各河段粗化程度上游比下游粗化程度大。粗化程度A值不随粒径的变化而变化，河床糙率n随A值呈线性变化趋势，根据有限的资料进行了拟合，得到一个A值与n值的关系式。

Abstract

Abstract:Abstract According to the studies on exposure degree and equivalent size of our predecessors

start-up and sediment transport rate formula of the right in the upper reaches of the Yangtze River typical was choose. parameters A of coarse degree on typical of the river bed was further defined. Through analysis we could see that the coarse degree in time and space there are changes in laws. Coarse degree was lighter in flood season than in dry season

and it was lighter upstream than downstream. It was not changed with the grain size. The riverbed roughness was a linear trend with coarse degree. According to the limited information

the relation between coarse degreea and riverbed roughness was drawn .

关键词

冲刷粗化粗化特征参数粗化程度

Keywords

scour coarse Coarsening parameters coarse degree

references

刘兴年;曹叔尤;黄尔.粗细化过程中非均匀沙起动流速[J].泥沙研究,2000(4)

张植堂,姚于丽,长江上游河床卵石起动流速表达式的讨论,长江科学院院报,1989(2).

刘兴年;黄尔;曹叔尤.宽级配推移质输移特性研究[J].泥沙研究,2000(4)

Paintal A S,A stochastic model of bed load transport,J nyd Res,1971(4).

华国祥,泥沙的起动流速,成都工学院学报,1965(1).

Garde F,Bed-load transport of coarse non-uniform sediment,Journal of Hydraulic Engineering,1984(8).

Einstein H A,The bed load function for sediment ttransporration in open channel flows,1950.

Borah D K,Scour-depth prediction under armoring conditions,Journal of Hydraulic Engineering ASCE,1989(10).

李文萍;曹叔尤,宽级配非均匀沙粗化特性研究,成都:四川大学,2007.

钱宁;万兆惠,泥沙运动力学,北京:科学出版社,1983.

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