摘要
浮式液化天然气接收和再气化终端平台(FRU)采用嵌固于海底的钢管桩加抱箍系泊方式,用以制约FRU的水平位移并承受波浪引起的作用力。该桩型主要特点是采用超厚钢管,嵌岩深度大,桩径大,施工难度高。经过专项方案的比选和研究,提出采用搭设水上施工平台、扩大孔径冲击成孔、整体植入钢管桩、在钢管下部预留孔洞、浇筑水下混凝土的施工工艺。该工艺较好地解决了嵌岩桩钢管内、外壁混凝土整体性问题,确保了工程质量,可供类似工程借鉴。
The floating regasification unit(FRU)of liquefied natural gas(LNG)adopts a mooring method with steel pipe piles and hoops to restrict its horizontal displacement and sustain waving force.The steel pipe piles are socketed into the seabed.This pile type is characterized by a thick pipe shaft,a great rock-socketed depth,a large diameter and hard construction.According to comparison and study on special programs,we propose the construction technology including building offshore construction platforms,enlarging piling holes,inserting integral steel pipe piles,presetting holes at the lower part of the steel pipes and casting underwater concrete.The technology helps well solve the problem regarding the integrity of concrete inside and outside the socketed pile and ensures the quality of the structure.It may serve as reference for similar projects.
作者
杨胜生
杨建冲
YANG Sheng-sheng;YANG Jian-chong(CCCC Fourth Harbor Engineering Co.,Ltd.,Guangzhou 510290,China)
出处
《水运工程》
北大核心
2022年第4期197-202,共6页
Port & Waterway Engineering
关键词
植入式钢管嵌岩桩
FRU系泊桩
植入式挤实锚固
水下混凝土浇筑
implanted steel pipe for socketed pile
mooring pile for FRU
consolidation and anchorage with implantation method
underwater concrete casting
