| 摘要: |
| 根据刘家峡水库变动回水区的河段地形特征和历年河床质泥沙粒径级配资料,分析了变动回水区河段淤积和冲刷时,河床质泥沙中值粒径的沿程变化和历年河床质泥沙中值粒径变化过程,并指出粒径分布由粗变细的转折点在变动回水区寺沟峡峡口处. |
| 关键词: 河床质泥沙,泥沙粒径,粒径分布,变动回水区,刘家峡水库 |
| DOI： |
| 分类号:TV145 |
| 基金项目: |
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| Distribution of sediment diameter of bed load at the fluctuating backwater reach of Liujiaxia Reservoir |
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GAO Ya-jun,LI Guo-bin,LU Yong-jun
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Nanjing Hydraulic Research Institute, Nanjing 210029, China
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| Abstract: |
| Based on the topographic features and data of sediment particle size of bed load at the fluctuating backwater reach of Liujiaxia Reservoir,the streamwise variation and variation process of median diameter of bed load during silting and scouring periods of the fluctuating backwater reach are analyzed,and it can be seen that the turning point for the sediment diameter variation from coarse to fine is located at the outlet of Shigou Gorge of the fluctuating backwater reach. |
| Key words: sediment of bed load,sediment diameter,distribution of sediment diameter,fluctuating backwater reach,Liujiaxia Reservoir |
