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Integrated Construction of Jacket Substructures to Reduce Construction Cost for Offshore Wind Turbines

비용 절감을 위한 해상풍력 자켓 일체화 시공

  • 이두호 ((주)젠텍엔지니어링, 해양구조사업부) ;
  • 최한식 ((주)젠텍엔지니어링, 해양구조사업부) ;
  • 하성열 ((주)젠텍엔지니어링, 해양구조사업부) ;
  • 최병렬 ((주)젠텍엔지니어링) ;
  • 김정규 (현대스틸산업(주), 영업실) ;
  • 지광습 (고려대학교, 건축사회환경공학부)
  • Received : 2019.05.03
  • Accepted : 2019.06.16
  • Published : 2019.06.30

Abstract

The offshore wind jacket substructures at the Tam-la and Southwest Project were built in Korea according to two-body separated construction. The installation of jacket substructures according to two-body separated construction is not economical due to an increased marine construction period. In this study, integrated construction is developed to install offshore wind jacket substructures quickly in order to reduce marine construction costs. In addition, the basic design of a jacket substructure with 5.0 MW turbine is made considering all environmental loads in the southwest sea off Korea such as wind, waves, current, etc. Finally, marine construction costs according to integrated construction are compared with two-body jacket separated construction. As a result, if jacket substructures are built using integrated construction, marine construction costs could be reduced by approximately 20 %.

Keywords

Acknowledgement

본 연구는 산업통상자원부(MOTIE)와 한국에너지기술평가원(KETEP)의 지원을 받아 수행한 연구 과제입니다. (No. 20163030024520)

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