| Peak Dynamic Pressure on Semi- and Quarter-Circular Breakwaters Under Wave Troughs |
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| 作者姓名： | JIANG Xue-lian ZOU Qing-ping SONG Ji-ning |
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| 作者单位： | State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China;Tianjin Key Laboratory of Soft Soil Characteristics & Engineering Environment, School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384, China,Department of Civil and Environmental Engineering, The University of Maine, 5711 Boardman Hall, Orono, ME 04469-5711, USA;State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China,Tianjin Key Laboratory of Soft Soil Characteristics & Engineering Environment, School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384, China |
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| 基金项目： | This research was financially supported by the Open Fund of the State Key Laboratory of Hydraulic Engineering Simulation and Safety from Tianjin University (Gtant No. HESS-1310), the Natural Science Foundation of Tianjin, China (Gtant No. 14JCYBJC22100), and the National Natural Science Foundation of China (Gtant No. 51509178). The first author is supported by the State Scholarship Fund of China Scholarship Council (Gtant No. 201308120008). The second author is supported by the Physical Oceanography Program of National Science Foundation (Grant No. 1436642), the Maine Sea Grant and NOAA for Grant No. NA10OAR4170072. The work was also undertaken as part of EFRaCC project funded by the British Council under its Global Innovation Initiative, and the open fund research at the State Key Laboratory of Hydraulics and Mountain River at Sichuan University (Grant No. SKHL1311). |
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| 摘 要： | A series of physical tests are conducted to examine the characteristics of the wave loading exerted on circular-front breakwaters by regular waves. It is found that the wave trough instead of wave crest plays a major role in the failure of submerged circular caissons due to seaward sliding. The difference in the behavior of seaward and shoreward horizontal wave forces is explained based on the variations of dynamic pressure with wave parameters. A wave load model is proposed based on a modified first-order solution for the dynamic pressure on submerged circular-front caissons under a wave trough. This wave loading model is very useful for engineering design. Further studies are needed to include model uncertainties in the reliability assessment of the breakwater.
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| 关 键 词： | semicircular breakwater quarter-circular breakwater wave trough load seaward wave force shoreward wave force |
| 收稿时间： | 2015/10/17 0:00:00 |
| 修稿时间： | 2016/2/24 0:00:00 |
Peak Dynamic Pressure on Semi- and Quarter-Circular Breakwaters Under Wave Troughs |
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| JIANG Xue-lian,ZOU Qing-ping,SONG Ji-ning.Peak Dynamic Pressure on Semi- and Quarter-Circular Breakwaters Under Wave Troughs[J].Ocean Engineering,2017,31(2):151-159. |
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| Authors: | JIANG Xue-lian ZOU Qing-ping and SONG Ji-ning |
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| Institution: | State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China;Tianjin Key Laboratory of Soft Soil Characteristics & Engineering Environment, School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384, China,Department of Civil and Environmental Engineering, The University of Maine, 5711 Boardman Hall, Orono, ME 04469-5711, USA;State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China and Tianjin Key Laboratory of Soft Soil Characteristics & Engineering Environment, School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384, China |
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| Abstract: | A series of physical tests are conducted to examine the characteristics of the wave loading exerted on circular-front breakwaters by regular waves. It is found that the wave trough instead of wave crest plays a major role in the failure of submerged circular caissons due to seaward sliding. The difference in the behavior of seaward and shoreward horizontal wave forces is explained based on the variations of dynamic pressure with wave parameters. A wave load model is proposed based on a modified first-order solution for the dynamic pressure on submerged circular-front caissons under a wave trough. This wave loading model is very useful for engineering design. Further studies are needed to include model uncertainties in the reliability assessment of the breakwater. |
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| Keywords: | semicircular breakwater quarter-circular breakwater wave trough load seaward wave force shoreward wave force |
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