| 非均匀沙起动问题研究 |
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| 引用本文： | 许全喜,张小峰,谈广鸣.非均匀沙起动问题研究[J].水动力学研究与进展(A辑),1999,14(2):135-141. |
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| 作者姓名： | 许全喜 张小峰 谈广鸣 |
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| 作者单位： | 1. 长江水利委员会水文局,武汉430010
2. 武汉水利电力大学河流工程系,武汉430072 |
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| 摘 要： | 本文在已有研究成果的基础上，运用概率论与力学分析相结合的方法，提出了考虑床沙组成，隐暴效应及起动概率的分级起动流速计算式，此项可满足预报起动沙级配的要求，实验资料验证结果较好。
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| 关 键 词： | 非均匀沙 起动沙级配 分级起动流速 随机分析 |
The Research of Non-uniform Sediment Graded Incipient Motion |
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| Xu Quan-xi,Zhang Xiao-feng,Tan Guang-ming.The Research of Non-uniform Sediment Graded Incipient Motion[J].Journal of Hydrodynamics,1999,14(2):135-141. |
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| Authors: | Xu Quan-xi Zhang Xiao-feng Tan Guang-ming |
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| Abstract: | By combining probability theory with dynamical analysis and considering the composition of bedmaterial, the exposure and shelter effect and the incipient probabi1ity, a formula of calculating the graded incipient velocity of non-uniform sediment is established. The results obtained from this formula are in satisfactory agreement with experimental data. So the formula can be used to predict graded incipient sediment distribution. |
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| Keywords: | non-uniform sediment incipient sediment distribution graded sediment incipient velocity stochastic analysis |
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