桩桶复合结构在海上风电工程的应用与创新
Application and innovation of pile bucket composite structure in offshore wind power engineering
刘蜜1
作者信息
- 1. 天津水运工程勘察设计院有限公司,天津 300456
- 折叠
摘要
桩桶复合基础是一种新型的单桩基础与桶体基础相结合的海上风电基础结构,结合项目对其施工工艺与质量控制进行了研究和应用.单桩基础采用稳桩工艺进行施打,桶型基础结构先通过船吊套装在打设完毕的单桩基础上,通过自重下沉和抽负压下沉到位,采用水下灌浆工艺将单桩基础与桶型基础连接成整体.施工质量的关键是桶体基础安装的方位角和偏斜度控制、桶型基础与单桩基础之间灌浆部位的淤泥清除、桩桶间隙灌浆区的顶封板设计和安装.该施工技术和质量控制方法在浙江台州1 号海上风电项目得到了成功应用,其具有施工成本低、效率高的特点.
Abstract
Pile bucket composite foundation is a new type of offshore wind power foundation structure that combines single pile foundation and bucket foundation.Its construction technology and quality control have been studied and applied in combination with the project.The single pile foundation is driven using the stable pile technology.The bucket foundation structure is first installed on the completed single pile foundation through a ship crane set,then sunk in place through self-weight sinking and negative pressure pumping,and finally connected to the bucket foundation as a whole through underwater grouting.The key to construction quality is the control of the azimuth and inclination of the bucket foundation installation,the removal of mud in the grouting area between the bucket foundation and the single pile foundation,and the design and installation of the top sealing plate in the grouting area between the pile and bucket.This construction technology and quality control method have been successfully applied in the Taizhou No.1 offshore wind power project in Zhejiang,with the characteristics of low construction cost and high efficiency.
关键词
海上风电基础/桩桶复合基础/施工工艺/质量控制Key words
offshore wind power foundation/pile bucket composite foundation/construction technology/quality control引用本文复制引用
基金项目
国家重点研发计划项目(2022YFB2603000)
中央级公益性科研院所基本科研业务费项目(TKS20220601)
出版年
2024
国家科技期刊平台
NSTL
万方数据