| 摘要: |
| 根据长江口的水文泥沙特性和丁坝的特征 .探讨了适合于长江口典型丁坝坝头最大冲深计算的模式 ,为丁坝坝头冲刷坑深度计算和判断冲刷坑的稳定性提供依据 .并给出了适合于长江口典型丁坝坝头床沙起冲流速的估算式 . |
| 关键词: 丁坝,冲深,起冲流速,长江口 |
| DOI： |
| 分类号:TV8 |
| 基金项目: |
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| Model selection and verification for a typical spur dike's scour depth in the Yangtze River Estuary |
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JI Yong-xing,HE Gang-qiang,LU Yong-jin
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| Abstract: |
| Based on the analysis of computing formulas of scour depth around spur dikes all over the world and the characteristics of hydrology and sediment in the Yangtze River Estuary, a suitable computing model for the scour depth around a typical spur dike in the Yangtze River Estuary is elaborated in the paper . According to the measured data, the practicality of the computing formulas is verified, and the estimated formula for the initial scour velocity in front of the dike is given. |
| Key words: spur dike,scour depth,initial scour velocity,Yangtze River Estuary |
