| 摘要: |
| 本文根据丁坝作用后水槽中水流情况，采用动量方程结合试验资料，导出了丁坝下游主槽平均流速沿程变化的公式，以此为基础，提出了丁坝作用下河床冲刷段长度的计算公式。 |
| 关键词: 主槽,回流长度,冲刷长度 |
| DOI： |
| 分类号:TV6 |
| 基金项目: |
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| A brief calculation of erosion length for spur |
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Ying Qiang1,Han Xin1,Jing Fei2
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Ying Qiang Han Xin(Nanjing Hydraulic Research Institute) Jing Fei(Nanjing College of Commucations)
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| Abstract: |
| According to the flow state in flume for spur and experimental data, the formulas for the mean velocity of main channel varying with distance downstream were derived with momentum principle. By using above formula, the erosion length of river bed for spur was discussed. |
| Key words: main channel, length of recirculation, erosion length |
