| 长江下游镇江段造床流量计算及特性分析 |
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| 引用本文： | 徐玲玲,甄峰,蒋红樱.长江下游镇江段造床流量计算及特性分析[J].冰川冻土,2017,39(2):416-420. |
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| 作者姓名： | 徐玲玲 甄峰 蒋红樱 |
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| 作者单位： | 江苏省水利工程科技咨询有限公司,江苏南京,210017;江苏省水利工程科技咨询有限公司,江苏南京,210017;江苏省水利工程科技咨询有限公司,江苏南京,210017 |
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| 基金项目： | 泵站改造进水池水力优化与涡带防治关键技术及应用 |
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| 摘 要： | 造床流量是河床形态塑造的关键因素,也是河道整治、水工计算设计的主要参数。根据实测水文数据,分别采用三种常用造床流量计算方法,对长江下游镇江河段的造床流量进行求解计算,结果分析对比,表明Makovieve法更适用于镇江段造床流量的计算。基于算例结果建立长江下游河段造床流量经验方法,精度分析表明经验方法具有较高的精度。给出了推荐值。建立了适用于镇江河段造床流量计算的经验公式。
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| 关 键 词： | 造床流量 Makovieve法 平摊流量法 镇江河段 |
Calculation of dominant discharge with its characteristics in the river channel section of the lower Yangtze River at Zhenjiang |
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| Abstract: | As the key influential factor on forming the river channel geomorphology,the dominant discharge is one of the main variables in hydro-calculations for designing water conservancies.In this study,we analyzed in detail several main formulas for dominant discharge calculation.Values based on the formulas were computed based on the measured series of the river channel Section of the lower Yangtze River at Zhenjiang.The results of the comparison show that the Makovieve method is more suitable for the calculation of the bed flow in Zhenjiang section.Based on the results of the study,the empirical method of establishing bed flow in the lower reaches of the Yangtze River is established,accuracy analysis shows that the empirical method has high accuracy. |
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| Keywords: | dominant discharge Makovieve method bankfull discharge method river channel section in Zhenjiang |
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