To provide a supporting structure of a riser pipe capable of protecting topside equipment from blue waves without sufficiently ensuring a freeboard while suppressing cost increase and size increase of a hull.SOLUTION: A riser pipe supporting structure 17 is arranged on the broad side of an offshore floating structure 1 with a production facility 13 for storing a fluid and with a riser pipe 15 to transport the fluid between a seabed and the production facility 13, supports the riser pipe 15, and supports a riser pull-in supporting device 21 for lifting the riser pipe 15. The riser pipe supporting structure 17 is characterized by having an upper riser pipe supporting structure 31 with a water-tight compartment R inside, where the water-tight compartment R has an inclined part 33 consisting of the outer shape in which its width increases continuously in the ship width direction from a bottom side toward a deck side when viewed in the ship longitudinal direction.SELECTED DRAWING: Figure 4
【課題】船体のコスト増加や大型化を抑制しつつ、乾舷を十分確保しなくても青波からトップサイド機器を保護できるライザー管支持構造の提供。【解決手段】流体を貯蔵する生産設備13と、海底と生産設備13の間で流体を搬送するライザー管15を備える洋上浮体構造物1の舷側に配置され、ライザー管15を支持し、かつライザー管15の吊り上げのためのライザープルイン支持機器21を支持するライザー管支持構造17であって、船長方向から見て、船底側から甲板側に向けて船幅方向に幅が連続的に大きくなる外形を構成する傾斜部33を有する水密区画Rを内部に備えた上部ライザー管支持構造31を有することを特徴とするライザー管支持構造17。【選択図】図4
SUPPORTING STRUCTURE OF RISER PIPE AND OFFSHORE FLOATING STRUCTURE
ライザー管支持構造及び洋上浮体構造物
2021-08-26
Patent
Elektronische Ressource
Japanisch
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