해양환경안전학회지 (Journal of the Korean Society of Marine Environment & Safety)

  • 제25권3호
  • /
  • Pages.287-297
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  • 2019
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  • 1229-3431(pISSN)
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  • 2287-3341(eISSN)
해양환경안전학회 (The Korean Society of Marine Environment and safety)
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A Study on Improvement of Criteria for Mooring Safety Assessment in Single Point Mooring

  • Lee, Sang-Won (Graduate School, Korea Maritime and Ocean University) ;
  • Kim, Young-Du (Maritime Policy Research Office, Korea Ship Safety Technology Authority)
  • 투고 : 2019.05.03
  • 심사 : 2019.05.28
  • 발행 : 2019.05.31
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초록

The recent increase in crude oil trading has led to an increase in the workings of SPM for crude oil carriers. VLCCs generally encounter difficulty entering port due to limitations in terms of sea depth and maneuverability. The SPM is a system that allows mooring to the buoy located in the outer sea for such vessels. However, the buoy is more affected by relatively external forces because of their of shore location. Therefore, the safety assessment of SPM is particularly important as it can lead to large oil pollution disasters in the event of SPM accidents. Despite this, in the implementation of the Marine Traffic Safety Audit Scheme in Korea, there exists no guidance for SPM. In this study, a SPM mooring safety assessment is performed using OPTIMOOR, a numerical analysis program, so as to understand the mooring characteristics of SPM. As a result, it is confirmed that the tension of mooring lines and hull movement in the SPM are greatly affected by the encounter angles with external forces. In addition, it is found that the maximum tension of the mooring line is elevated as the water depth becomes shallower through sensitivity analysis. According to SPM characteristics, which has a large influence on the encounter angle, this study has proposed an amendment to setting criteria in the implementation of the Maritime Traffic Safety Audit Scheme which could improve the reliability and accuracy of mooring safety assessments.

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참고문헌

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피인용 문헌

  1. Identification of Impact Factors in Ship-to-Ship Mooring Through Sensitivity Analysis vol.43, pp.5, 2019, https://doi.org/10.5394/kinpr.2019.43.5.310