| 波、流及其共同作用下桩墩局部冲刷问题试验研究现状 |
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| 引用本文： | 袁春光,王义刚,杨华,张义丰,庞启秀.波、流及其共同作用下桩墩局部冲刷问题试验研究现状[J].海洋通报,2019,38(2):121-131. |
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| 作者姓名： | 袁春光 王义刚 杨华 张义丰 庞启秀 |
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| 作者单位： | 交通运输部天津水运工程科学研究所 港口水工建筑技术国家工程实验室 工程泥沙交通行业重点实验室,天津,300456;河海大学 海岸灾害及防护教育重点实验室,江苏 南京,210098 |
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| 基金项目： | 天津市自然科学基金 （17JCQNJC07300） |
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| 摘 要： | 要研究波流共同作用下桩墩的基础冲刷问题,首先需要了解水流和波浪单独作用下桩墩冲刷的机理和特征。针对波、流及其共同作用下桩墩的局部冲刷问题,从流速、水深、桩径、波长、波高、相对底层流速、粒径和粒径级配等方面系统地简述了恒定流、波浪和波流作用下桩、墩局部冲刷的研究进展。根据实验资料比较了各家经典计算公式的计算结果发现我国规范65-1式计算值偏大,65-2式计算值偏小等结论。桩墩局部冲刷是一个复杂的过程,今后可以针对淤泥质海岸底床、粉沙质海岸底床、复杂桩群结构、物理模型比尺效应、非恒定水动力条件、复杂基础形式方面对波流作用下基础冲刷的最大冲刷深度、冲刷过程、冲刷范围进行研究,以弥补桩墩局部冲刷在这些方面的不足。
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| 关 键 词： | 波流作用 恒定流 波浪 局部冲刷 试验研究现状 |
| 收稿时间： | 2018/4/12 0:00:00 |
| 修稿时间： | 2018/6/28 0:00:00 |
The review of the foundation scour caused by wave and current |
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| YUAN Chun-guang,WANG Yi-gang,YANG Hu,ZHANG Yi-feng and PANG Qi-xiu.The review of the foundation scour caused by wave and current[J].Marine Science Bulletin,2019,38(2):121-131. |
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| Authors: | YUAN Chun-guang WANG Yi-gang YANG Hu ZHANG Yi-feng and PANG Qi-xiu |
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| Institution: | National Engineering Laboratory of Port Hydraulic Construction Technology, Key Laboratory of Engineering Sediment of Ministry of Transport, Tianjin Research Institute of Water Transport Engineering, Tianjin 300456, China,College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China,National Engineering Laboratory of Port Hydraulic Construction Technology, Key Laboratory of Engineering Sediment of Ministry of Transport, Tianjin Research Institute of Water Transport Engineering, Tianjin 300456, China,National Engineering Laboratory of Port Hydraulic Construction Technology, Key Laboratory of Engineering Sediment of Ministry of Transport, Tianjin Research Institute of Water Transport Engineering, Tianjin 300456, China and National Engineering Laboratory of Port Hydraulic Construction Technology, Key Laboratory of Engineering Sediment of Ministry of Transport, Tianjin Research Institute of Water Transport Engineering, Tianjin 300456, China |
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| Abstract: | To evaluate the scour influence on the pile in wave and current combination conditions, a systematic review of foundation local scour is presented to display the effects of current speed, water depth, pile diameter, wave length, wave height, near-bed velocity parameter, grain diameter, gradation and some other factors. The calculation results of some classical formulas are compared with the experiments data, which show that the 65 -1 in Chinese specification is rather overestimated, but the 65-2 is undervalued. The foundation scour process is complex definitely, and there are many problems need to be studied, such as the clay coast bed, silt coast bed, complex pile group, physical experiment scale effect, unsteady hydrodynamic environment, complex foundation configurations, the maximum scour depth, scour development process and range. |
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| Keywords: | wave-current steady flow wave foundation scour experimental research achievements |
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