无掩护外海装配式墩台高精度安装技术研究  

Research on high-precision installation technology of open sea unshielded prefabricated piers

作　　者：殷天军 刘玉宝 YIN Tian-jun;LIU Yu-bao(No.1 Engineering Co.,Ltd.of CCCC First Harbor Engineering Co.,Ltd.,Tianjin 300456,China)

机构地区：[1]中交一航局第一工程有限公司,天津300456

出　　处：《中国港湾建设》2022年第5期53-57,共5页China Harbour Engineering

摘　　要：文章依托于翔安大桥(厦门第二东通道)工程项目,介绍了一种基于海上湿法作业的装配式墩台高精度安装施工技术,主要针对海上墩台止水难、安装精度高等诸多难题,通过托盘止水和钢套箱止水保证了墩台内具备干作业条件,通过顶部三维千斤顶和水下千斤顶实现墩台高精度安装。吊装过程中对吊具进行实时监测,确保吊装过程吊具结构安全。Relying on the Xiang'an Bridge(the second east passage in Xiamen)project,we introduced a high-precision installation and construction technology for prefabricated piers based on wet operation at sea,mainly aiming at many problems such as difficult water stop and high installation accuracy of offshore piers.The pallet water stop and the steel box water stop ensure the dry working conditions in the piers,and the high-precision installation of the pier is realized by the top three dimensional jack and the underwater jack.During the hoisting process,the spreader is monitored in real time to ensure the safety of the spreader structure during the hoisting process.

关 键 词：装配式墩台 止水 钢套箱 三维千斤顶 调位 吊具 实时监测 

分 类 号：U655.54[交通运输工程—港口、海岸及近海工程] U445.559[交通运输工程—船舶与海洋工程]