단일 설치선을 사용한 2기 해양플랜트 Topside Float Over 설치 시 Jacket Leg의 하중 계산

• Published in: Han-guk haeyang gonghak hoeji (Online) Vol. 29; no. 2; pp. 135 - 142
• Main Authors: 배동열(Dong-Yeol Bae), 이승재(Seung-Jae Lee), 이재용(Jaeyong Lee)
• Format: Journal Article
• Language: Korean
• Published: 한국해양공학회 2015
• Subjects: 해양공학; Motion RAOs 운동RAO; Fender forces 휀더력; Multiple topside 다중상부구조물; Docking 도킹; Installation 설치; Mooring tensions 계류력; Mating 결합; RAO
• ISSN: 1225-0767; 2287-6715

The float over method is the most preferred method for installing heavy topside onto a jacket platform. A very complex platform with multiple jacket structures on a specific field requires multiple installation procedures. This study validated the installation of two topsides using a single installation barge to reduce the operation and installation cost. The hydrodynamic properties of the installation barge during the installation of two topsides were calculated. The tension and fender forces during docking were investigated to show the validity of the proposed dual topside installation method. In conclusion, the operational safety of the proposed procedure was validated through the calculation of the motion of the installation vessel and loads on the jacket legs.