| 不同间距下大直径圆筒防波堤波吸力试验研究 |
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| 引用本文： | 刘远超,刘 晨,陈国平,严士常,吴月勇.不同间距下大直径圆筒防波堤波吸力试验研究[J].水运工程,2018(2):19-24. |
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| 作者姓名： | 刘远超 刘 晨 陈国平 严士常 吴月勇 |
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| 作者单位： | 河海大学 港口海岸与近海工程学院，海岸灾害及防护教育部重点实验室，江苏 南京 210098,中交第四航务工程勘察设计院有限公司,广东 广州 510230,河海大学 港口海岸与近海工程学院，海岸灾害及防护教育部重点实验室，江苏 南京 210098,河海大学 港口海岸与近海工程学院，海岸灾害及防护教育部重点实验室，江苏 南京 210098,河海大学 港口海岸与近海工程学院，海岸灾害及防护教育部重点实验室，江苏 南京 210098 |
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| 摘 要： | 防波堤的波浪力计算对防波堤的设计和稳定具有重要意义。针对目前圆筒防波堤波吸力的设计计算方法尚未成熟,通过开展物理模型试验,进行不规则波作用下不同间距下大直径圆筒结构波吸力的分布规律、影响因素和计算方法研究。结果表明:波谷作用下,大直径圆筒结构波吸力的横向分布规律与圆筒的间距有关,纵向分布规律表现为随着水深增加先线性增大然后线性减小,且最大波吸力的位置出现在静水位一倍波高以下。圆筒的相对间距、相对水深以及波陡对不同间距大直径圆筒防波堤的波吸力影响较大。基于直立墙结构波吸力公式给出折减系数的拟合公式,用以计算圆筒周身迎浪面的波吸力。
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| 关 键 词： | 不同间距 圆筒防波堤 波吸力 物理模型试验 |
Experimental study on wave trough pressure of large diameter cylinder breakwater with different spacing |
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| LIU Yuan-chao,LIU Chen,CHEN Guo-ping,YAN Shi-chang and WU Yue-yong.Experimental study on wave trough pressure of large diameter cylinder breakwater with different spacing[J].Port & Waterway Engineering,2018(2):19-24. |
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| Authors: | LIU Yuan-chao LIU Chen CHEN Guo-ping YAN Shi-chang and WU Yue-yong |
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| Institution: | Key Laboratory of Coastal Disaster and Defense,Ministry of Education,College of Harbor,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China,CCCC-FHDI Engineering Co.,Ltd.,Guangzhou 510230,China,Key Laboratory of Coastal Disaster and Defense,Ministry of Education,College of Harbor,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China,Key Laboratory of Coastal Disaster and Defense,Ministry of Education,College of Harbor,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China and Key Laboratory of Coastal Disaster and Defense,Ministry of Education,College of Harbor,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China |
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| Abstract: | It is quite essential to calculate wave forces for the design and stability of breakwater.With the aid of physical model test,we study the distribution and influence factors and calculation method of wave trough pressure on the large diameter cylinder breakwater with different spacing under irregular wave,in view of the imperfection of design and calculation method of wave trough pressure on the cylinder breakwater.The results show that the transverse distribution of wave trough pressure on the large diameter cylinder structure is related to the spacing of the cylinder under the action of the waves.The longitudinal distribution appears that wave trough pressure is linearly enhanced and then linearly dropped off with the increase of water depth,and the position of the maximum wave trough pressure arises about the depth of wave height below static water level.The relative spacing,relative depth and wave steepness of the cylinder are great influence on the wave trough pressure on the large diameter cylinder breakwater with different spacing.The wave trough pressure calculation formula of the cylinder breakwater is provided with the reduction coefficient on the basis of the theoretical wave trough pressure formula of the vertical wall structure. |
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| Keywords: | different cylinder spacing cylinder breakwater wave trough pressure physical model test |
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