| 非均匀沙推移质输沙率及其级配计算 |
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| 引用本文： | 陆永军,张华庆.非均匀沙推移质输沙率及其级配计算[J].水动力学研究与进展(A辑),1991,6(4):96-106. |
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| 作者姓名： | 陆永军 张华庆 |
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| 作者单位： | 交通部天津水运工程科学研究所
(陆永军)，交通部天津水运工程科学研究所(张华庆) |
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| 基金项目： | “七五”国家重点科技攻关(75-16-01-05-1)经费的资助 |
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| 摘 要： | 本文根据水流功率理论,导出了非均匀沙推移质输沙率公式,并考虑了床沙运动的随机性及床面粗化对输沙率的影响;提出了推移质级配计算的公式。由非均匀推移质输沙率及其级配计算公式的计算值与作者、Samaga、Gilbert试验值及长江新厂(二)站、美国东汊河实测值吻合较好,并且能够用于均匀沙的推移质输沙率计算,具有广泛的通用性。
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| 关 键 词： | 非均匀沙 推移质 级配 输沙率 |
Bedload Transport Capacity of Nonuniform Sediment and Calculation for its Bedload Size Distribution |
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| La Yong-jun Zhang Hua-ging.Bedload Transport Capacity of Nonuniform Sediment and Calculation for its Bedload Size Distribution[J].Journal of Hydrodynamics,1991,6(4):96-106. |
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| Authors: | La Yong-jun Zhang Hua-ging |
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| Affiliation: | Tianjing Institute of Water Transport Engineering |
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| Abstract: | Based on theory of the water energy, the bedload transport capacity formula of nonuniform sediment is derived in this paper, and in this study, to consider the threshold motion law of non-uniform sediment and the armoring mechanism of the riverbed. The bedload size distribution formula of nonuniform sediment is presentted. The results obtained by theoretical analysis and laboratory experiments fit in pretty well with the results of experimental and field data. It proves that tha formula (8) is reasonable, which can be applied to calculate the bedload transport rate of nonuniform sediment and uniform sediment also. |
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| Keywords: | nonuniform sediment bedload size distribution transport capacity armoring of riverbeds threshold probability |
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