| Experimental study on the width of the turbulent area around bridge pier |
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| 作者姓名： | ZHUANG Yuan LIU Zu-yuan |
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| 作者单位： | ZHUANG Yuan1 and LIU Zu-yuan2 1. Navigation College，Wuhan University of Technology，Wuhan 430063，China 2. College of Transportation，Wuhan University of Technology，Wuhan 430063，China |
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| 基金项目： | Supported by the West Waterway Transportation Construction Foundation under Grant No.2004-328-000-40. |
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| 摘 要： | At present, the method of calculating the turbulent flow width around the bridge pier is not given in the "Standard for Inland River Navigation" (GB50139-2004) in China, and the bridge designer usually increases the bridge span in order to ensure the navigation safety, which increases both of the structural design difficulty and the project investments. Therefore, it is extremely essential to give a research on the turbulent flow width around the bridge pier. Through the experiments of the fixed bed and the mobile bed, the factors influencing the turbulent flow width around the bridge pier have been analyzed, such as the approaching flow speed, the water depth, the angles between the bridge pier and the flow direction, the sizes of bridge pier, the shapes of the bridge pier, and the scouring around the bridge pier, etc. Through applying the dimension analytic method to the measured data, the formula of calculating the turbulent flow width around the bridge pier is then inferred.
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| 关 键 词： | 桥墩 湍流区 宽度 移动床 固定床 实验研究 |
| 文章编号： | 1671-9433（2007）01-0053-05 |
| 收稿时间： | 2006-09-19 |
Experimental study on the width of the turbulent area around bridge pier |
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| ZHUANG Yuan LIU Zu-yuan.Experimental study on the width of the turbulent area around bridge pier[J].Journal of Marine Science and Application,2007,6(1):53-57. |
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| Authors: | Zhuang Yuan Liu Zu-yuan |
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| Institution: | (1) Navigation College, Wuhan University of Technology, Wuhan, 430063, China;(2) College of Transportation, Wuhan University of Technology, Wuhan, 430063, China |
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| Abstract: | At present, the method of calculating the turbulent flow width around the bridge pier is not given in the "Standard for Inland River Navigation" (GB50139-2004) in China, and the bridge designer usually increases the bridge span in order to ensure the navigation safety, which increases both of the structural design difficulty and the project investments. Therefore, it is extremely essential to give a research on the turbulent flow width around the bridge pier. Through the experiments of the fixed bed and the mobile bed, the factors influencing the turbulent flow width around the bridge pier have been analyzed, such as the approaching flow speed, the water depth, the angles between the bridge pier and the flow direction, the sizes of bridge pier, the shapes of the bridge pier, and the scouring around the bridge pier, etc. Through applying the dimension analytic method to the measured data, the formula of calculating the turbulent flow width around the bridge pier is then inferred. |
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| Keywords: | bridge pier mobile bed experiment fixed bed width of turbulence area |
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