| Interaction Between Waves and A Comb-Type Breakwater |
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| 作者姓名： | DONG Guo-hai |
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| 作者单位： | The State Key Laboratory of Coastal and Offshore Engineering，Dalian University of Technology，Dalian 116023，China，The State Key Laboratory of Coastal and Offshore Engineering，Dalian University of Technology，Dalian 116023，China，The State Key Laboratory of Coastal and Offshore Engineering，Dalian University of Technology，Dalian 116023，China，The State Key Laboratory of Coastal and Offshore Engineering，Dalian University of Technology，Dalian 116023，China，The Planning and Design Institute of Waterway Transportation，Beijing 100007，China，The Planning and Design Institute of Waterway Transportation，Beijing 100007，China |
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| 基金项目： | This paper presents part of the achievement in the China National Key Project“Construction Techniques for Breakwa-ters in Deep Water”(96-415-02-03) |
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| 摘 要： | The characteristics of wave transmission, reflection and energy dissipation of comb-type caisson breakwaters are studied through laboratory physical model tests. Regular and irregular waves, with a wide range of wave heights and periods and a constant water depth, are considered. Different dimensions of each portion of the comb-type caisson breakwater are tested. Empirical formulae for calculating the reduction coefficient k, which is the ratio of horizontal wave force on unit length of the comb-type breakwater to that on unit length of the vertical wall breakwater, and for calculating the reflection coefficient of waves k, are obtained from the measurements. The comb-type caisson breakwater has been found to be very efficient in dissipating incident wave energy and in reducing wave reflection, and has already been used for the construction of an island breakwater in the Dayao Bay of Dalian Port, Liaoning Province, China. Compared with the cost of a common caisson breakwater, about 24. 5% of the investm
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Interaction Between Waves and A Comb-Type Breakwater |
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| DONG Guo-hai LI Yu-cheng SUN Zhao-chen
SUN Yang NIU En-zong and MAO Kai
The State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian ,China The Planning and Design Institute of Waterway Transportation,Beijing ,China.Interaction Between Waves and A Comb-Type Breakwater[J].China Ocean Engineering,2003,17(4):517-526. |
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| Authors: | DONG Guo-hai LI Yu-cheng SUN Zhao-chen
SUN Yang NIU En-zong and MAO Kai
The State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian China The Planning and Design Institute of Waterway Transportation Beijing China |
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| Institution: | The State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology, Dalian,116023, China The State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology, Dalian,116023, China The State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology, Dalian,116023, China The State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology, Dalian,116023, China The Planning and Design Institute of Waterway Transportation, Beijing,100007, China The Planning and Design Institute of Waterway Transportation, Beijing,100007, China |
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| Abstract: | The characteristics of wave transmission, reflection and energy dissipation of comb-type caisson breakwaters are studied through laboratory physical model tests. Regular and irregular waves, with a wide range of wave heights and periods and a constant water depth, are considered. Different dimensions of each portion of the comb-type caisson breakwater are tested. Empirical formulae for calculating the reduction coefficient k, which is the ratio of horizontal wave force on unit length of the comb-type breakwater to that on unit length of the vertical wall breakwater, and for calculating the reflection coefficient of waves k, are obtained from the measurements. The comb-type caisson breakwater has been found to be very efficient in dissipating incident wave energy and in reducing wave reflection, and has already been used for the construction of an island breakwater in the Dayao Bay of Dalian Port, Liaoning Province, China. Compared with the cost of a common caisson breakwater, about 24. 5% of the investment has been saved owing to the use of this comb-type breakwater. |
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| Keywords: | comb-type breakwater physical model wave force wave reflection |
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