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A platform for research: civil engineering, architecture and urbanism
CONSTRUCTION METHOD OF LANDING TYPE OFFSHORE FRAME, LANDING TYPE OFFSHORE FRAME AND OFFSHORE WIND POWER GENERATION FACILITY
To provide a landing type offshore frame reduced in a construction period, a manufacturing cost and an installation cost, while constructing the same in a sea area of 40 m to 120 m depth.SOLUTION: The construction method of a landing type offshore frame comprises: a preparation step of preparing a steel sill part for loading granular weight in a state of installed on the seabed, a column part formed of a cylindrical steel pipe and having total length with an upper end projecting to the sea surface in a state of a lower end connected to the sill part installed on the seabed, and a prescribed amount of the granular weight to be loaded on a storage part; a conveyance step of conveying the sill part, the column part and the granular weight to the ocean in a construction region of the landing type offshore frame; a foundation part formation step of forming a foundation part with an upper face flatly graded on the seabed surface in the construction region; a sill part installation step of sinking the sill part to the seabed to install the same on the foundation part; a column part installation step of sinking the column part into the sea vertically and inserting a lower part of the column part into a socket cylinder part of the sill part installed on the seabed and connecting them; and a loading step of loading the granular weight in the storage part of the sill part.SELECTED DRAWING: Figure 9
【課題】水深が４０ｍ～１２０ｍの海域に構築しながら、工期を短縮して製造コストと設置コストを低減する。【解決手段】着床式洋上架台の構築方法は、海底に設置された状態で粒状錘が積載される鋼鉄製の土台部と、円筒状の鋼管で形成されて、海底に設置された土台部に下端を連結した状態で、上端を洋上に突出させる全長を有する支柱部と、収容部に積載される所定量の粒状錘とを準備する準備工程と、土台部と支柱部と粒状錘とを着床式洋上架台の構築領域の洋上に運搬する運搬工程と、構築領域の海底面に、上面が水平面状に整地された基礎部を形成する基礎部形成工程と、土台部を海底に沈めて基礎部の上に設置する土台部設置工程と、支柱部を垂直姿勢で海中に沈めて、海底に設置された土台部のソケット筒部に支柱部の下端部を挿入して連結する支柱部設置工程と、土台部の収容部に粒状錘を積載する積載工程とを含んでいる。【選択図】図９
CONSTRUCTION METHOD OF LANDING TYPE OFFSHORE FRAME, LANDING TYPE OFFSHORE FRAME AND OFFSHORE WIND POWER GENERATION FACILITY
To provide a landing type offshore frame reduced in a construction period, a manufacturing cost and an installation cost, while constructing the same in a sea area of 40 m to 120 m depth.SOLUTION: The construction method of a landing type offshore frame comprises: a preparation step of preparing a steel sill part for loading granular weight in a state of installed on the seabed, a column part formed of a cylindrical steel pipe and having total length with an upper end projecting to the sea surface in a state of a lower end connected to the sill part installed on the seabed, and a prescribed amount of the granular weight to be loaded on a storage part; a conveyance step of conveying the sill part, the column part and the granular weight to the ocean in a construction region of the landing type offshore frame; a foundation part formation step of forming a foundation part with an upper face flatly graded on the seabed surface in the construction region; a sill part installation step of sinking the sill part to the seabed to install the same on the foundation part; a column part installation step of sinking the column part into the sea vertically and inserting a lower part of the column part into a socket cylinder part of the sill part installed on the seabed and connecting them; and a loading step of loading the granular weight in the storage part of the sill part.SELECTED DRAWING: Figure 9
【課題】水深が４０ｍ～１２０ｍの海域に構築しながら、工期を短縮して製造コストと設置コストを低減する。【解決手段】着床式洋上架台の構築方法は、海底に設置された状態で粒状錘が積載される鋼鉄製の土台部と、円筒状の鋼管で形成されて、海底に設置された土台部に下端を連結した状態で、上端を洋上に突出させる全長を有する支柱部と、収容部に積載される所定量の粒状錘とを準備する準備工程と、土台部と支柱部と粒状錘とを着床式洋上架台の構築領域の洋上に運搬する運搬工程と、構築領域の海底面に、上面が水平面状に整地された基礎部を形成する基礎部形成工程と、土台部を海底に沈めて基礎部の上に設置する土台部設置工程と、支柱部を垂直姿勢で海中に沈めて、海底に設置された土台部のソケット筒部に支柱部の下端部を挿入して連結する支柱部設置工程と、土台部の収容部に粒状錘を積載する積載工程とを含んでいる。【選択図】図９
CONSTRUCTION METHOD OF LANDING TYPE OFFSHORE FRAME, LANDING TYPE OFFSHORE FRAME AND OFFSHORE WIND POWER GENERATION FACILITY
着床式洋上架台の構築方法、着床式洋上架台、及び洋上風力発電装置
OTSUKA HIROAKI (author)
2023-04-07
Patent
Electronic Resource
Japanese
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