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300英尺自升式平臺設計技術

本成果主要體現為形成一套適用于世界范圍內(除挪威北海)、水 深在300英尺以內各種海域環境條件下鉆丼作業、具有自主知識產權 的自升式鉆丼平臺設計方案。共取得成果221項,其中基本設計圖紙 及計算書59套、詳細設計圖紙和計算書115套、技術報告21份、試 驗報告2份、專利22項、發表論文2篇。 平臺船型為三角形船體,設有三個三角形桁架式樁腿,每個樁腿 由下端的樁靴支撐。平臺最大鉆丼深度30000英尺(9144米),型長 62. 78米,型寬60. 2米,型深8.0米,樁腿全長125. 3米,樁靴直徑 15. 2米,懸臂梁最大外伸15.24米,鉆臺左右橫向最大移動距離為4. 57 米,自存工況下

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