The Study on Incipient Velocity of Steep Channels

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- The Study on Incipient Velocity of Steep Channels
- Advanced Engineering Sciences Vol. 45, Issue Z2, Pages: 32-35(2013)
- 作者机构：
  
  四川大学水力学与山区河流开发保护国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013，
  
  Published Online：15 February 2013，
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侯极.大比降河道均匀沙起动流速研究[J].工程科学与技术,2013,45(Z2):32-35.

Hou Ji. The Study on Incipient Velocity of Steep Channels. [J]. Advanced Engineering Sciences 45(Z2):32-35(2013)
侯极.大比降河道均匀沙起动流速研究[J].工程科学与技术,2013,45(Z2):32-35. DOI：

Hou Ji. The Study on Incipient Velocity of Steep Channels. [J]. Advanced Engineering Sciences 45(Z2):32-35(2013) DOI：

中文摘要: 在讨论床面均匀沙颗粒起动标准的基础上，引入休止角的表达式和随机性理论推导出不同底坡下均匀沙起动概率，进而导出泥沙起动流速；通过已有的研究成果验证本公式的合理性，结果表明：本文公式适用于大比降河道，而且对普通河道的适用性也较强；同时文章初步分析了典型无粘性均匀沙起动公式差异性的原因。

Abstract: Based on the standard of incipient motion of uniform sediment

the incipient probability was deduced by the concept of sediment angle of repose and the random theory

we can alse obtain the incipient velocity of uniform on different bed slopes. Through the comparison with the former research

the result shows that this formula can be not only used in large gradient channels

but also used in the common chnnels.At the same time

this study peliminary analysis the difference of the typical incipient formulas of uniform sediment.

大比降均匀沙起动概率起动流速

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