Nonlinear wave forces on large-scale submerged tunnel element |
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| Institution: | 1. Key Laboratory of Mechanics in Fluid Solid Coupling System, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China;2. Sino-French Engineering School, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;1. Coastal & Ocean Engineering Division, Korea Institute of Ocean Science and Technology, Busan, Republic of Korea;2. School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, Republic of Korea;1. Department of Structures for Engineering and Architecture, University of Naples Federico II, P.le Tecchio 80, 80125, Naples, Italy;2. Departamento de Construcción, Facultad de Ingeniería, Universidad Nacional Autónoma De México, Circuito Exterior s/n Col. Ciudad Universitaria, Del. Coyoacán, México D.F. CP 04510;1. Politecnico di Milano, Dep. of Civil and Environmental Engineering, Piazza Leonardo da Vinci 32, 20133 Milano, Italy;2. Professional Engineer, Shanghai, PRC;1. Department of Ocean Engineering, Texas A&M University, Haynes Engineering Building, College Station, TX, 77843, USA;2. Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology, Applied Engineering Building, Daejeon, 34141, Republic of Korea |
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| Abstract: | This paper presents parametric studies of nonlinear wave forces on large-scale submerged tunnel element. A transportation project of submerged tunnel element under irregular wave conditions is taken as the research background. Three-dimensional diffraction potential and radiation potential associating with the motion of the floating body are utilized, and an efficient three dimensional Green function is implemented to solve the radiation-diffraction problem. A computational method for calculating the nonlinear wave forces of the submerged tunnel element is developed. The present method is validated by the existed methods and experimental data, and good agreements are observed for all test models. The effects of wave parameters and structural parameters on the second-order nonlinear wave forces are studied. Results from the present study can provide valuable recommendations for the weather window and downtime frequencies, the configuration of tugboats, the arrangement of sea-route, and the size and type of the design and construction of the submerged tunnel element. |
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| Keywords: | Nonlinear wave forces Submerged tunnel element Transportation project Irregular wave conditions Second-order wave forces |
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