| 折线型实用堰过流能力研究 |
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| 引用本文： | 童海鸿,艾克明,丁新求.折线型实用堰过流能力研究[J].长江科学院院报,2002,19(2):7-10. |
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| 作者姓名： | 童海鸿 艾克明 丁新求 |
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| 作者单位： | 1. 长沙电力学院,水利水电工程系,湖南,长沙,410015
2. 湖南省水利水电勘测设计总院,湖南,长沙,410007 |
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| 摘 要： | 折线型实用堰作为低堰应用于中小型水利工程。通过整理前人研究成果，以及对实测试验资料进行分析，提出了折线型实用堰的界限范围：0.67＜δ/H≤1.5～2.0，且0.5≤P/H，给出了自由泄流时流量系数的计算公式。
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| 关 键 词： | 折线型实用堰 流量系数 堰型系数 自由泄流 |
| 文章编号： | 1001-5485(2002)02-0007-04 |
Discharge capacity of broken-line practical weir |
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| TONG Hai Hong ,AI Ke ming ,DING Xin qiu.Discharge capacity of broken-line practical weir[J].Journal of Yangtze River Scientific Research Institute,2002,19(2):7-10. |
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| Authors: | TONG Hai Hong AI Ke ming DING Xin qiu |
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| Affiliation: | TONG Hai Hong 1,AI Ke ming 2,DING Xin qiu 1 |
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| Abstract: | The broken line practical weir as a low weir is being widely used in many middle and small scale water conservancy projects.The paper describes the research results on this weir''s discharge capacity.On the basis of summing up the previous research results and through analyzing experimental data,authors proposed a limitation for applying a broken line practical weir(namely,the ratios of weir crest width to head above weir are more than 0.67 but equal or less than 1.5～2.0, ratios of weir height to head above weir are equal or more than 0.5;the upstream slope of this kind of weir is about 2.0),and gave the formulas for calculating discharge coefficients under free overflow condition. |
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| Keywords: | broken line practical weir discharge coefficient formal coefficient of weir free overflow |
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