Structural Engineering and Mechanics

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Theoretical evaluation of collision safety for Submerged Floating Railway Tunnel (SFRT) by using simplified analysis

  • Seo, Sung-il (New Transportation Research Center, Korea Railroad Research Institute(KRRI)) ;
  • Moon, Jiho (Department of Civil Engineering, Kangwon National University) ;
  • Mun, Hyung-Suk (New Transportation Research Center, Korea Railroad Research Institute(KRRI))
  • Received : 2016.06.14
  • Accepted : 2017.07.11
  • Published : 2017.11.10
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Abstract

Submarine collisions is one of the major hazardous factor for Submerged Floating Railway Tunnel (SFRT) and this study presents the safety evaluation for submarine collision to SFRT by using theoretical approach. Simplified method to evaluate the collision safety of SFRT was proposed based on the beam on elastic foundation theory. Firstly, the time history load function for submarine collision was obtained by using one-degree-of-freedom vibration model. Then, the equivalent mass and stiffness of the structure were calculated, and the collision responses of SFRT were evaluated. Finite element analysis was conducted to verify the proposed equations, and it can be found that the collision responses, such as deflection, and acceleration, agreed well with the proposed equations. Finally, derailment condition for high speed train in SFRT due to submarine collision was proposed.

Keywords

Acknowledgement

Supported by : Korea Railroad Research Institute

References

  1. AASHTO (2009), Guide Specifications and Commentary for Vessel Collision Design of Highway Bridges, 2nd Edition.
  2. ABAQUS (2010), Abaqus Analysis User's Manual version 6.10, Dassault Systemes Simulia Corp.
  3. Consolazio, G., Cowan, D., Biggs, A., Cook, R., Ansley, M. and Bollmann, H. (2005). "Full-scale experimental measurement of barge impact loads on bridge piers", Tran. Res. Record: J. Tran. Res. Board, 1936, 81-93.
  4. DNV (2010), Design Against Accidental Loads, DNV-RP-C204.
  5. Hong, K.W. and Lee, G.H. (2014), "Collision analysis of submerged floating tunnel by underwater navigating vessel", J. Comput. Struct. Eng. Inst. Korea, 27(5), 367-77. (in Korean)
  6. Kanie, S. (2010), "Feasibility studies on various SFT in Japan and their technological evaluation", Procedia Eng., 4, 13-20. https://doi.org/10.1016/j.proeng.2010.08.004
  7. Kawakami, M. (1984), Guide to Ship Vibration, Nippon Kaiji Kyoka.
  8. Korea Railroad Research Institute (KRRI) (2014), Technical Specifications for Urban Railway Vehicles, Ministry of Land & Transport of Korea Government. (in Korean)
  9. Mazzolani, F.M., Faffiano, B. and Matire, G. (2010), "Design aspects of the AB prototype in the Qiandao Lake", Procedia Eng., 4, 21-33. https://doi.org/10.1016/j.proeng.2010.08.005
  10. Ostlid, H. (2010), "When is SFT competitive?", Procedia Eng., 4, 3-11. https://doi.org/10.1016/j.proeng.2010.08.003
  11. Seo, S.I. and Kim, J.S. (2012), "Simplified collision analysis method using theory of beam with elastic foundation", 2012 Spring Conference Proceedings of Korean Society for Railway, 559-566. (in Korean)
  12. Ugural, A.C. and Fenster, S.K. (2012), Advanced Mechanics of Materials and Applied Elasticity, Prentice Hall, 5th Edition.
  13. Zhang, S., Wang, L. and Hong, Y. (2010), "Vibration behavior and response to an accidental collision of SFT prototype in Qiandao Lake (China)", Procedia Eng., 4, 189-97. https://doi.org/10.1016/j.proeng.2010.08.022