수산해양기술연구 (Journal of the Korean Society of Fisheries and Ocean Technology)

  • 제58권3호
  • /
  • Pages.230-240
  • /
  • 2022
  • /
  • 2671-9940(pISSN)
  • /
  • 2671-9924(eISSN)
한국수산해양기술학회 (The Korean Society of Fisheries and Ocean Technology)
권호 표지
DOI QR코드

DOI QR Code

묘박중 해저 저질에 따른 파주력 특성

Characteristic of holding power due to nature of seabed at anchor

  • 김병엽 (제주대학교 해양산업경찰학과) ;
  • 김광일 (제주대학교 해양산업경찰학과) ;
  • 김민선 (군산대학교 해양생산시스템전공) ;
  • ;
  • 이창헌 (제주대학교 해양산업경찰학과)
  • KIM, Byung-Yeob (College of Ocean Sciences, Jeju National University) ;
  • KIM, Kwang-il (College of Ocean Sciences, Jeju National University) ;
  • KIM, Min-son (Marine Production System Major, Kunsan National University) ;
  • NOBUO, Kimura (Faculty of Fisheries Sciences, Hokkaido University) ;
  • LEE, Chang-Heon (College of Ocean Sciences, Jeju National University)
  • 투고 : 2022.06.03
  • 심사 : 2022.08.19
  • 발행 : 2022.08.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

In general, a high tension on the anchor and chain is placed when a ship at anchor is subjected to heavy weather. Mariners have to pay attention to whether dragging anchor occurs to keep the safety of the ship at anchorage since it is difficult to maintain the stable motion of ship and it causes collisions with other ships nearby. In this paper, the ship motion against the external forces was shown to obtain the fundamental data about characteristic of holding power due to nature of seabed at anchor, so practical trials were carried out in rocky area and muddy area using a trial ship around coastal area of South Korea. In muddy seabed, holding power showed reasonable tension values depending on the distance from anchor position of continuing swing motions of a ship corresponding to wind force. Meanwhile in rocky seabed, tension values on the chain appeared very high occasionally regardless of the distance from the anchor position and seemed to exceed its holding power to be the breaking strain of the chain although weather was not in a severe condition. Therefore, some of the cables laid on the seabed were presumed to be caught in a crack on the rock. It is assumed that even a small amount of external force may cause the chain to break in a moment in rocky seabed. Additionally, wind and current forces had a somewhat contradictory effect on holding power of the ship between them.

키워드

과제정보

이 논문은 2022학년도 제주대학교 교원성과지원사업에 의하여 연구되었음.

참고문헌

  1. Jung CH and Kong GY. 2009. A study for the evaluation of the force by the wind on the ship at anchoring. Journal of the Korean Society of Marine Environment & Safety 15, 223-228.
  2. Jung CH, Kong GY, Bae BD and Lee YS. 2009. Analysis on the pattern of dragging anchor in actual ship. J Navig Port Res 33. 505-511. https://doi.org/10.5394/KINPR.2009.33.8.505.
  3. Jung CH, Lee YS, Kim JS and Kong GY. 2011. A study on the holding power coefficient of AC-14 type and ASS type anchor in actual ship. J Navig Port Res 35. 613-618. https://doi.org/10.5394/KINPR.2011.35.8.613.
  4. Kang BS, Jung CH, Park YS and Kong GY. 2021. Minimum wind speed of dragging anchor for ships in Jinhae Bay typhoon refuge. Journal of the Korean Society of Marine Environment & Safety 27, 474-482. https://doi.org/10.7837/kosomes.2021.27.4.474.
  5. Kim MS, Ahn JY and Lee CH. 2021. Evaluation of holding power by tension meter for anchoring. JFM SE 31, 682-692. https://doi.org/10.13000/JFMSE.2019.6.31.3.682.
  6. Kinzo I. 2019. Theory and Practice of ship Handling. Sang Hak Dang, 227-228.
  7. Lee SM and Lee JA. 2014. Experimental Investigation on the Embedding Motion and Holding Power of Anchor According to Initial Position. J Navig Port Res 38, 683-688. https://doi.org/10.5394/KINPR.2014.38.6.683.
  8. Lee YS. 2014. A Study on the Anchoring Safety Assessment of E-Group anchorage in Ulsan Port. Journal of the Korean Society of Marine Environment & Safety 20, 17-178. https://doi.org/10.7837/kosomes.2014.20.2.172.
  9. Lim BT, Ko JW and Kim BS. 2015. A study on theoretical consideration to the holding power and holding power coefficient of war ship anchor. J Navig Port Res 39, 1-6. https://doi.org/10.5394/KINPR.2015.39.1.1.
  10. Lee YS, Jung YC, Kim SW, Yun JH, Bae SH and Nguyen PH. 2005. A Study on the Limit of Anchor Dragging for Ship at Anchor(I). J Navig Port Res 29, 357-363. https://doi.org/10.5394/KINPR.2005.29.5.357.
  11. Yoon JD. 2014. The theory and executive ability of Ship control. Se-jong Publisher, 1-15.