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http://dx.doi.org/10.7837/kosomes.2014.20.2.172

A Study on the Anchoring Safety Assessment of E-Group Anchorage in Ulsan Port  

Lee, Yun-Sok (Department of Ship Operation, Korea Maritime and Ocean University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.20, no.2, 2014 , pp. 172-178 More about this Journal
Abstract
This study suggests the minimum critical external forces based on the assessment of anchoring safety to single anchor situation for representative 8 number of ships in E-group anchorage of Ulsan port. Assessment of anchoring safety is compared holding powers of anchor with external forces of wind, wave and current. Holding powers was reflected materials of seabed, equipment numbers regarding anchor and chain weight, also external forces acting on a hull was calculated considering projected wind area and wetted surface area to the full and ballast conditions respectively. The results of anchoring safety assessments to single anchor showed that the minimum criteria of dragging anchor is a little different from ship's type, size and loading conditions. Bulk carrier can be dragged over the 15m/s of winds and Tanker can be dragged over the 13m/s of winds in case of less than 2knots of currents speed.
Keywords
Ulsan E group anchorage; Holding power; Dragging anchor; Critical external force; Wind force; Current force; Wave force;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Fujiwara, T., M. Ueno and T. Nimura(1998), The Estimation of Wind Force and Moments Acting on Ships, The Society of Naval Architecture of Japan, No. 183, pp. 77-90.
2 Froude, R. E.(1927) On the Constant System of Notation of Results of Experiments on Models Used at the Admiralty Experiment Works, Trans, INA No. 69.
3 Hirano, M.(1995), The Application of Maneuvering Study to Ship's Design, Proceedings of the 12th Marine dynamics Symposium, The Society of Naval Architecture of Japan, pp. 48-50.
4 Honda, K.(2005), Guidelines of maneuvering, chapter 4 berthing maneuvering and anchoring, sungsangdang, pp. 116-123.
5 Jung, C. H. and G. Y. Kong.(2009), A Study on the Development of Anchoring Manual for T.S. HANBADA, Journal of the Korean Society of Maritime Environment & Safety, Vol. 15, No. 1, pp. 49-55.   과학기술학회마을
6 Lee. Y. S., Y. C. Jung, S. W. Kim, J. H. Yun, S. H. Bae and P. H. Nguyun.(2000), A Study on the Limit of Anchor Dragging for Ship at Anchor(I), Journal of Navigation and Port Research, Vol. 29 No. 5, pp. 357-363.   과학기술학회마을   DOI   ScienceOn
7 Ministry of Oceans and Fisheries(2005), Guidelines of Port and Harbor Design, Chapter 6 water facilities, p. 690.
8 Port-MIS 2.0(2013), Port Management Information System, https://portmis.go.kr/.
9 Remery, G. F. M. and G. V. Oortmerssen(1973), The Mean Wave and Current Forces of Offshore Structures and their Role in the Design of Mooring Systems, The 5th Offshore Technology Conference, Houston, USA, pp. 57-61.