• Title/Summary/Keyword: 횡압류

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A Study on the Lateral Force Acting on a Ship in the adjacent Waterway of Busan and Gamcheon Breakwater (부산항과 감천항 방파제 인접 항로에서 선체에 작용하는 횡압류 현상에 관한 연구)

  • 이윤석;김철승;공길영
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2004.04a
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    • pp.311-316
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    • 2004
  • In order to secure the traffic safety especially in the entrance waterway of harbour, it is important that the breakwater and the port facilities should be designed properly considering ship-handling difficulty and traffic flow. In this study, the lateral force acting on ship hull under the external force(wind, current, wave) is investigated quantitatively for the container ship approaching to the Busan and Gamcheon breakwater. The relation of ship-handling difficulty to the breakwater and the arrangement of ship's routine are examined based on the lateral force under the external force. Some of reviews to secure traffic safety on the design of breakwater are discussed.

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A Study on the Drift Phenomenon of a Ship on the Waterway near the Breakwater of Busan and Gamcheon Port (부산항과 감천항 방파제 인접 항로에서 선체에 작용하는 횡압류 현상에 관한 연구)

  • Lee Yun-Sok;Kim Chol-Seong;Kong Gil-Young;Im Nam-Kyun;Lee Chung-Ro
    • Journal of Navigation and Port Research
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    • v.29 no.1 s.97
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    • pp.1-7
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    • 2005
  • In order to secure the traffic safety especially in the entrance waterway of harbour, it is important that the breakwater and the port facilities should be designed properly considering ship-handling difficulty and traffic flow. In this study, the lateral force acting on ship hull under the external force(wind, current, wave) is investigated quantitatively for the container ship approaching to the Busan and Gamcheon breakwater. The relation of ship-handling difficulty to the breakwater and the arrangement of ship's routine are examined based on the lateral force under the external force. Some of reviews to secure traffic safety on the design of breakwater are discussed.

A Study on the Required Horsepower of Tugboats at Jeju Port for Car Ferries - Focusing on Car Ferry H - (카페리여객선 제주항 입출항 시 예선 사용 기준에 관한 연구 - 카페리여객선 H호를 중심으로 -)

  • Byung-Sun Kang;Chang-Hyun Jung
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.30 no.2
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    • pp.209-216
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    • 2024
  • Four accidents occurred between 2020 and 2022 after car ferries built according to a coastal passenger ship modernization plan collided with other ships or came into contact with the dock when entering Jeju Port. Accidents primarily occurred owing to careless ship handling and drift by wind during ship handled by herself using bow and stern thrusters without tugboats. Accordingly, in this study, we analyzed the collision accident focusing on car ferry H and the critical wind speed at which the ship cannot be controlled using its own power, tugboat operation plan in increasing wind speed were proposed based on the power required for the ship to berth parallel to the pier without a tugboat considering the external force and moment generated while the ship is berthing. A analysis of the critical wind speed of car ferry H by relative wind direction when using tugboats or not according to the loading status and the berthing speed, showed that one tugboat should be used at the stern when the lateral wind speed is over 10 m/s and two tugboats should be used when the lateral wind speed is over 14m/s berthing at Jeju port.

A Study on the Traffic Improvement at an Approach Area of Busan Harbor (부산항 제1항로 진입 해역의 통항 개선에 관한 연구)

  • Lee, Yun-Sok;Jung, Min;Song, Chae-Uk;Park, Jin-Soo;Park, Young-Soo;Cho, Ik-Soon
    • Journal of Navigation and Port Research
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    • v.31 no.5 s.121
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    • pp.345-351
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    • 2007
  • In approaching sea area of Busan harbour, there are many traffic vessels and external forces such as strong seasonal wind and lateral flow are existed. Since the area caused the risk of navigation and ship operators feel hard to enter/depart on Busan port, we carried our the evaluation of traffic risk and propriety at Busan no.1 fairway. In order to assess the safety in the fairway, we analyzed ship's traffic stream based on the marine traffic survey and evaluated the traffic safety of present Traffic Separation Schemes(TSS) and suggest TSS in the research using full mission ship-handling simulators. As a result, the suggested TSS has an effect on improving the traffic safety. In addition, this paper was to suggest the dredging area of depth of water, the passage of towing vessels and control of warships for preventing of maritime accidents in the Busan no.1 fairway.