| 南水北调中线工程总干渠糙率综合论证 |
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| 作者姓名： | 王光谦 黄跃飞 魏加华 吴保生 |
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| 作者单位： | 清华大学水利水电工程系,北京,100084 |
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| 基金项目： | 致谢 本项研究得到国务院南水北调办的资助.本项研究出本文作者外,参加研究工作的还有李玉梁、张庄、费祥俊、沈之良、虞石民、朱根培等教授,存此一并表示感谢. |
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| 摘 要： | 在大量收集与分析国内外输水渠道糙率取值规范和计算方法、混凝土输水渠道实测n值、以及对京密引水渠、引黄济青下渠进行实地考察与调查的基础上，结合理论分析推荐了南水北调中线一期工程n值的计算方法和各渠段的n值。中线工程各渠段推荐糙率系数的甲均值为0．0149（设计流量）及0．0150（加大流量）；推荐的校核值为0．0154。
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| 关 键 词： | 南水北调 糙率 渠道 |
| 文章编号： | 1672-1683（2006）01-0008-07 |
Identification of Roughness-Coefficient Value for the Channel of the South-to-North Water Transfer (Middle Line) Project |
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| Authors: | WANG Guang-qian HUANG Yue-fei WEI Jia-hu WU Bao-sheng |
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| Affiliation: | Depurtment of Hydraulic Engineering,Tsinghua University,Beijing 100084,China |
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| Abstract: | Based on field investigation and literature review, the design criteria and calculation methods of the roughness-coefficient values used for water transfer canals around the world were collected and analyzed. Combining with theoretical analysis, the calculation method for determining roughness-coefficient values was identified and the roughness-coefficient value for each channel segment of the South-to-North Water Transfer (Middle Line) Project is suggested. The average values for the whole channel are 0. 0149 and 0. 0150 under the design and the maximum discharges, respectively. |
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| Keywords: | South-to-North Water Transfer Roughness coefficient Canal |
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