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	卵石河流的时均流速和悬沙浓度垂线分布
	郑钧 ; 张超 ; 李万友 ; 王兴奎 ; ZHENG Jun ; ZHANG Chao ; LI Wanyou ; WANG Xingkui
	2010-06-10 ; 2010-06-10
关键词	河流动力学 卵石河流 流速分布 浓度分布 river mechanics gravel-bed rivers velocity distribution concentration distribution TV143
其他题名	The vertical distributions of mean velocity and suspended sediment concentration in gravel-bed rivers
中文摘要	在我国西南地区的沙卵石河流上修建水电站时,合理布设各进水口以防止淤堵和粗泥沙过机至关重要,其控制参数为水流的时均流速和悬移质浓度的垂线分布。本文根据都江堰二王庙站的实测资料,分析了时均流速和悬移质浓度沿垂线的分布,主要结论为:时均流速符合对数分布公式,卡门常数的平均值为0.40,当采用Ks=1.75D90时,积分常数B=8.54。悬移质泥沙的垂线分布符合Rouse公式,悬浮指数与理论值基本一致。; When building hydropower stations on gravel-bed rivers in South-West China,it is critically important to lay the water intakes properly to prevent silting and coarse particles from the turbine.The controlling parameters for the intakes are the vertical distributions of mean velocity and suspended sediment concentration.These two parameters based on the measured data from Erwangmiao station of Dujiangyan reach are analyzed,it is concluded that the mean velocity distribution is consistent with the logarithmic law;the mean value of Karman constant is 0.40;When taking the rough height K-s=1.75D-(90),the integral constant B=8.54;the vertical distribution of suspended sediment concentration is consistent with Rouse equation,the suspending exponent is basically agreed with the theoretical value.; 国家自然科学基金资助项目(50579032,50221903)
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/59649]
专题	清华大学
推荐引用方式 GB/T 7714	郑钧,张超,李万友,等. 卵石河流的时均流速和悬沙浓度垂线分布[J],2010, 2010.
APA	郑钧.,张超.,李万友.,王兴奎.,ZHENG Jun.,...&WANG Xingkui.(2010).卵石河流的时均流速和悬沙浓度垂线分布..
MLA	郑钧,et al."卵石河流的时均流速和悬沙浓度垂线分布".(2010).

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