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http://dx.doi.org/10.12652/Ksce.2016.36.6.0955

Hydrodynamic Analysis of Submerged Floating Tunnel Structures by Finite Element Analysis  

Kim, Seungjun (Daejeon University)
Park, Woo-Sun (Korea Institute of Ocean Science & Technology)
Won, Deok-Hee (Korea Institute of Ocean Science & Technology)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.36, no.6, 2016 , pp. 955-967 More about this Journal
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.
Keywords
Submerged floating tunnels; Morion equation; Wave; Mooring lines; Global performance analysis;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 Cifuentes, S., Kim, S., Kim, M. H. and Park, W. S. (2015). "Numerical simulation of the coupled dynamic response of a submerged floating tunnel with mooring lines in regular waves." Ocean Systems Engineering, Vol. 5, No. 2, pp. 109-123.   DOI
2 Dong, M., Miao, G. Yong, L., NIU, Z., Pang, H. and Hou, C. (2012). "Effect of escape device for Submerged Floating Tunnel (SFT) on hydrodynamic loads applied to SFT." Journal of Hydrodynamics, Ser. B., Vol. 24, No. 4, pp. 609-616.   DOI
3 Faltinsen, O. M. (1993). Sea loads on ships and offshore structures, Cambridge university press, Cambridge, UK.
4 Garrett, D. L. (1981). "Dynamic analysis of slender rods." Journal of Energy Resources Technology, Vol. 104, No. 4, pp. 302-306.   DOI
5 Hong, Y. and Ge, F. (2010). "Dynamic response and structural integrity of submerged floating tunnel due to hydrodynamic load and accidental load." Procedia Engineering, First International Symposium on Archimedes Bridge (ISAB-2010) Vol. 4, pp. 35-50.
6 Jakobsen, B. (2010). "Design of the submerged floating tunnel operating under various conditions." Procedia Eng., First International Symposium on Archimedes Bridge (ISAB-2010), Vol. 4, pp. 71-79, 2010.
7 Kunisu, H. (2010). "Evaluation of wave force acting on submerged floating tunnels." Procedia Engineering, First International Symposium on Archimedes Bridge (ISAB-2010), Vol. 4, pp. 99-105.
8 Kunisu, H., Mizuno, S., Mizuno, Y. and Saeki, H. (1994). "Study on submerged floating tunnel characteristics under the wave condition." Proceedings of the Fourth International Offshore and Polar Engineering Conference, ISOPE-I-94-096.
9 Lu, W., Ge, F., Wang, L., Wu, X. and Hong, Y. (2011). "On the slack phenomena and snap force in tethers of submerged floating tunnels under wave conditions." Marerial Structures, Vol. 24, No. 4, pp. 358-376.   DOI
10 Oh, S. H., Park, W. S., Jang, S. C. and Kim, D. H. (2013). "Investigation on the behavioral and hydrodynamic characteristics of submerged floating tunnel based on regular wave experiments." Journal of the Korean Society of Civil Engineers, Vol. 33, No. 5, pp. 1887-1895.   DOI
11 Orcina, Orcaflex User Manual V10.0a.
12 Pilato, M. D., Perotti, F. and Fogazzi, P. (2008). "3D dynamic response of submerged floating tunnels under seismic and hydrodynamic excitation." Engineering Structures, Vol. 30, No. 1, pp. 268-281.   DOI
13 Remseth, S., Leira, B. J., Okstad, K. M. and Mathisen, K. M. (1999). "Dynamic response and fluid / structure interaction of submerged floating tunnels." Computures and Structures, Vol. 72, pp. 659-685.   DOI
14 Simulia Inc., ABAQUS User Manual V6.12.
15 Ostlid, H. (2010). "When is SFT competitive?, Dynamic response and structural integrity of submerged floating tunnel due to hydrodynamic load and accidental load." Procedia Engineering, First International Symposium on Archimedes Bridge (ISAB-2010), Vol. 4, pp. 3-11.