| 都江堰卵石推移质输沙规律研究 |
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| 引用本文： | 郑钧,孙砚方,王兴奎,徐元平.都江堰卵石推移质输沙规律研究[J].水力发电学报,2006,25(3):21-25,5. |
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| 作者姓名： | 郑钧 孙砚方 王兴奎 徐元平 |
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| 作者单位： | 1. 清华大学水沙科学教育部重点实验室,北京,100084
2. 四川省都江堰管理局,四川省,都江堰市,611830 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 以都江堰二王庙水文站9年实测的卵石推移质输沙率资料和对应的水力参数为基础，选用6个有代表性的公式进行了分析计算和对比。结果表明，可以采用沙莫夫公式计算起动流速，计算输沙率应考虑床面不动颗粒所占比例的影响。当采用各自定义的代表粒径时，只有爱因斯坦公式能适用。当统一采用D35时，各公式都具有较好的精度和适用性。
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| 关 键 词： | 河流动力学 都江堰 推移质 输沙率 |
| 收稿时间： | 2005-11-03 |
| 修稿时间： | 2005-11-03 |
Study on the gravel bed-load transport in Dujiangyan |
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| ZHENG Jun,SUN Yanfang,WANG Xingkui,XU Yuanping.Study on the gravel bed-load transport in Dujiangyan[J].Journal of Hydroelectric Engineering,2006,25(3):21-25,5. |
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| Authors: | ZHENG Jun SUN Yanfang WANG Xingkui XU Yuanping |
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| Affiliation: | 1. The Key Laboratory of Water and Sediment Sciences of the Ministry of Educatioin, Tsinghua University, Beijing 100084 ; 2. Dujiangyan Administration of Sichuan Province, Dujiangyan City, Sichuan Province 611830 |
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| Abstract: | Based on 9 years' field data of bed-load transport and the corresponding hydraulic parameters at the Erwangmiao hydrology station on Dujiangyan river,6 formulae for the prediction of the sediment transport are analyzed.It is concluded that the critical velocity could be calculated by Sharmov formula and the percentage of immobile particles of the bed should be considered for calculating the transport rate.Only Einstein formula performs well if all formulae are used with their own representative diameter.The results show that the formulae have good precision and reasonable application when D-(35) is used in all formulae. |
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| Keywords: | river mechanics Dujiangyan bed load transport rate |
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