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南水北调中线工程总干渠糙率综合论证 Identification of Roughness-Coefficient Value for the Channel of the South-to-North Water Transfer (Middle Line) Project
第4卷第1期 南水北调与水利科技 V01．4No．1 8L WaterTransfersandWaterSci朗ce Feb2006 2006年2月 S0uth_to_North Technology 南水北调中线工程总干渠糙率综合论证 王光谦，黄跃飞，魏加华，吴保生 (清华大学水利水电工程系，北京100084) 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竹值、以及对京密引水渠、 引黄济青干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咒值的计算方法和各渠段 的卵值。中线工程各渠段推荐糙率系数的平均值为o．0149(设计流量)及o．015o(加大流量)；推荐的校核值为 0．0154。 关键词：南水北调；糙率；渠道 中图分类号：TVl33 文献标识码：A 文章编号i1672—1683(2006)01一o008—07 Id蛐tificati蚰of Valuef；ortheCh籼elofthe Roughness—Coeffici饥t South-to-NorthWaterrIhmsfer(Middle Line)Project WANG Yue-fei，WEIJia_hua，WUBao-sheng Guang_qian，HUANG 100084，吼i懈) (D印n坨m删∥蜘dm“协勖g抛Pri以g，ni蜡矗懈晚i伽rs咖，BP巧i挖g onfield andliterature criteriaandcaIculationmethodsofthe valuesusedfor Abstract：Eksed review，thedesign roughness_coefficient investigation watertransfercanalsaroundtheworldwerecoUectedand withtheoretical calculationmethodfor analyzed．(乃mbining analysis，the valueswasidentifiedandthe valueforeachchannel ofthesouth-to-NorthWaterTransfer roughness岍coemcient roughness_coefficient segment wh01echannelare the andthemaximum (Middle is valuesforthe O．0149andO．0150under dischar— Line)Projectsuggested．Theaverage design ges，respectively． words：South_to_NorthWater coefficient；Canal Key Transfer；Roughness 1 引言 常参照一些经验
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