| Title |
Hydrodynamic Analysis of Submerged Floating Tunnel Structures by Finite Element Analysis |
| Authors |
김승준(Kim, Seungjun) ; 박우선(Park, Woo-Sun) ; 원덕희(Won, Deok-Hee) |
| DOI |
https://doi.org/10.12652/Ksce.2016.36.6.0955 |
| Keywords |
해중 터널;모리슨 방정식;파랑;계류선;전체계 해석 Submerged floating tunnels;Morion equation;Wave;Mooring lines;Global performance analysis |
| Abstract |
As transportation systems for connecting lands and islands, oversea long-span bridges, underwater tunnels, and immersed tunnels have been mainly used so far. Submerged floating tunnels (SFTs) moored under specific water depth are one of the newest oversea transportation system. Compared to other existing systems, the new system requires relatively less construction cost and time. But, there is still no construction example. For reasonable design of the tunnel and mooring lines the rational structural analysis should be firstly performed. Unlike common transportation structures, the submerged tunnels are mainly affected by the wave, vary irregular excitation component. So, the analysis scheme might be difficult because of the characteristics of the submerged structures. This study aims to suggest the rational global performance analysis methodology for the submerged tunnels. Using ABAQUS the dynamic response of the experimental models studied by KIOST (2013) was investigated considering regular waves. By comparing the simulation results with the experimental results, the feasibility of the numerical simulation was verified. Using the suggested method, the effects of initial inclination of the tethers and draft of the tunnel on the dynamic behavior were studied. In addition, dynamic response of a SFT under the irregular wave was examined. |