| 渠道不同粒径组泥沙的输移特性 |
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| 引用本文： | 王延贵,李希霞,刘和祥.渠道不同粒径组泥沙的输移特性[J].泥沙研究,1998(1):67-73. |
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| 作者姓名： | 王延贵 李希霞 刘和祥 |
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| 作者单位： | [1]中国水利水电科学研究院,北京100044 [2]山东簸箕李引黄灌溉局,惠民251700 |
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| 摘 要： | 本以灌区实测水沙资料为基础．通过分析悬沙垂线分布，提出泥沙输送的条件，进一步分析不同粒径组泥沙的输移特性及对渠道泥沙淤积的影响。指出粗沙是造成泥沙淤积的关键．阐述不同粒径组泥沙都具有多来多排的特性．但其变化规律有所差异。通过比较多十挟沙能力公式．最后给出适应簸箕李灌区挟沙能力的具体表达式。
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| 关 键 词： | 渠道 泥沙淤积 输移特性 泥沙输送 挟沙能力 悬沙 水沙资料 灌区 变化规律 分布 |
Study on transport of non uniform sediment in irrigation canals |
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| Wang Yangui\ Li Xixia.Study on transport of non uniform sediment in irrigation canals[J].Journal of Sediment Research,1998(1):67-73. |
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| Authors: | Wang Yangui\ Li Xixia |
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| Affiliation: | Wang Yangui\ Li Xixia (China Institute of Water Resources and Hydropower Research) Liu Hexiang (Bojili Bureau of Irrigation and Management) |
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| Abstract: | Based on field data, conditions for sediment transport in irrigation canals are given by analyzing vertical profiles of sediment concentrations. Transport characteristics of sediment with different grain sizes and their effects on deposition are further analized. It is pointed out that the deposition in canals is mainly caused by coarse particles(>0 05mm). Several formulas for sediment transport capacity are compared, and finally a formula suitable for Bojili Irrigation District is suggested |
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| Keywords: | sediment transport different size group sediment canal of irrigation system |
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