臺灣能源期刊發行
- 創刊日期：
102年11月30日
- 發行所：
經濟部能源署
- 發行人：
游振偉
- 地址：
台北市復興北路2號13樓
- 電話：
02-2772-1370
- 執行單位：
財團法人工業技術研究院
- 地址：
新竹縣竹東鎮中興路四段195號26館
- 服務專線：
03-5916006
- 服務信箱：
- 總編輯：
王漢英胡均立
- 顧問：
王運銘童遷祥楊日昌
- 執行主編：
劉子衙陳志臣
- 編輯委員：
方良吉王錫福李堅明李叢禎林師模馬鴻文陳介力陳希立廖芳玲廖肇寧劉文獻蕭志同顧洋(依筆畫順序排列)
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臺灣能源期刊論文全文
臺灣能源期刊第6卷第3期內容
出刊日期：September, 2019
- 題目
- 不同安裝流量對負壓沉箱基礎抗拉拔承載力之影響
- Title
- Effect of Installation Discharge on the Pullout Capacity of the Suction Bucket Foundation
- 作者
- 郭玉樹、林啟聖、楊捷有、陳威廷、許家維
- Authors
- Yu-Shu Kuo, Chi-Sheng Lin, Chieh-You Yang,Wei-Ting Chen, Chia-Wei Hsu
- 摘要
- 垂直拉拔承載力為離岸風機多腳基礎支撐結構重要檢核項目，多腳基礎常以樁基礎提供垂直阻抗，而對於深水域之多腳支撐結構，亦可採用負壓沉箱基礎作為基礎型式。本研究以1-g模型試驗模擬沉箱基礎施予負壓吸力進行安裝之過程，再對沉箱施加拉力以了解沉箱基礎變位與沉箱內部吸力之關係。本研究結果顯示，負壓沉箱內部之負壓吸力與沉箱基礎所受之拉力皆隨垂直位移增加而呈現先增後減之變化。本實驗小尺寸沉箱模型受拉力作用下，當垂直位移達約2/3倍裙翼長時，沉箱基礎可發揮極限拉拔力。而模型沉箱基礎之極限拉拔力隨著安裝流量增加而呈現減少之趨勢。
- 關鍵字
- 負壓沉箱，離岸風力發電，拉拔承載力
- Abatract
- It is important to verify the pullout capacity of multi-pile foundation for offshore wind turbine supporting structures. The friction between pile surface and soil provides the resistance for pile under vertical load. For the offshore wind turbines with multi-leg foundations in deep water region, suction bucket is an alternative choice for foundation. In this study, 1-g model tests are used to simulate the installation process of the suction bucket. After the installation of the suction bucket, a vertical tension load is applied to the suction bucket. The suction pressure in the bucket and the vertical displacement of the bucket are recorded, and the correlation between them is presented. The suction pressure in the bucket increases with the vertical deformation in the beginning when the bucket is subjected to tension and the suction pressure decreases when the deformation is large enough. Under this small scale model test condition, the pullout capacity of the suction bucket is mobilized when the vertical displacement of the bucket reaches 2/3 length of the skirt. The pullout capacity and the suction pressure decreases with the increase of the installation discharge.
- Keywords
- suction bucket, offshore wind energy, pullout capacity