Stability Evaluation of Floating Dock during Construction and Launching of Caisson for Breakwater

방파제용 대형 케이슨 제작/진수에 따른 부양식 독의 안정성 해석

Seok, Jun;Park, Jong-Chun;Jeong, Se-Min;Kim, Sung-Yong;Kang, Heon-Yong;Kim, Moo-Hyun;Kang, Yoon-Koo

  • Received : 2013.07.03
  • Accepted : 2013.12.18
  • Published : 2013.12.31


In general, huge caissons for breakwaters have been constructed on land or a floating dock. In the case of the construction on a floating dock, a 4 step installation procedure is involved: i) construction on a floating dock, ii) transportation by the floating dock to an area near the target sea, iii) launching from the floating dock, and iv) transference by tug-boats to the installation site. It is especially important to pay attention to the dynamic stability of the floating dock against the conditions in the sea during steps i) and iii). In this paper, the static and dynamic stabilities of a caisson on a floating dock are evaluated based on IMO rules during the construction and launching of the caisson on a floating dock by using independent commercial S/Ws such as NAPA, WAMIT, and CHARM3D.


Caisson;Floating Dock;Construction;Launching;Static Stability;Dynamic Stability


  1. IMO, 2002. Code on Intact Stability for All Types of Ships Covered by IMO Instruments: Resolution A.749(18) as Amended by Resolution MSC 75(69). IMO Publication.
  2. Jo, C.-H., Kim, S.-J., Cheong, H., 2009. Dynamic Stability during Transportation of Bridge Caisson. J. of Ocean Engineering and Technology, 23(1), 104-108. (Korean)
  3. Kang, H.-Y., Kim, M.-H., Seok, J., Park, J.-C., Kang, Y.-K. 2011. Safety of Caisson Transport on a Floating Dock, Proceedings of 2011 International Offshore and Polar Engineering Conference, Maui, USA.
  4. Lee, J.-H., 2000. Study on the Execution and Salvage Method of the Caisson for a Breakwater. Master thesis of Pusan National University. (Korean)
  5. MLTMA, 2012. Harbor and Fisheries Construction Standards Specification. The Ministry of Land, Transport and Maritime Affairs, Korea, 11-1611000-002639-14. (Korean)
  6. MMAF, 2005. Harbor and Fisheries Design Standards. The Ministry of Maritime Affairs and Fisheries, Korea, 11-1520000-000842-14. (Korean)
  7. NAPA. Solution for Design and Operation of Ships. [Online] Available at: [Accessed October 2013].
  8. Park, J.-M., Kim H.-B., 2006. New Caisson Fabrication Method in Pusan New Port Project. Korean Society of Civil Engineers Magazine, 54(9), 83-86. (Korean)
  9. Ryu, J.-B. (1999). Introduction to civil engineering works. Yeamoonsa. (Korean)
  10. Seok, J., Park, J.-C., Heo, J.-K., Kang, H.-Y., Bae, Y.-H., Kim, M.-H., Kang, Y.-K., 2010. Stability Evaluation during Transportation of Caisson for Breaker. J. of Ocean Engineering and Technology, 24(4), 13-22. (Korean)
  11. WAMIT, The State of the Art in Wave Interaction Analysis. [Online] Available at: [Accessed October 2013].
  12. Zung, Z.-M., Kim, H., 2005. Manufacture of Concrete Caisson by Using Soffit Form and its Conveyance by Jacking System, and Launching Method by DCL. Korean Society of Civil Engineers Magazine, 53(5), 57-63. (Korean)


Grant : 케이슨 운송시 안정성 검토

Supported by : (주)삼성물산