浮坞门沉箱原位现浇及顶升施工技术  

Cast-in-situ and jacking construction technology of caisson of floating dock gate

作　　者：王坤 张超 董天杰 WANG Kun;ZHANG Chao;DONG Tian-jie(No.3 Engineering Co.,Ltd.of CCCC First Harbor Engineering Co.,Ltd.,Dalian,Liaoning 116083,China;Tianjin Key Laboratory of Construction,Operation and Maintenance Technologies for Underwater Tunnels,Tianjin 300461,China)

机构地区：[1]中交一航局第三工程有限公司,辽宁大连116083 [2]天津市水下隧道建设与运维技术企业重点实验室,天津300461

出　　处：《中国港湾建设》2021年第11期46-49,共4页China Harbour Engineering

摘　　要：浮坞门沉箱作为干坞坞室的口门结构,采用原位现浇工艺施工成型,技术难度大。文中详细介绍了浮坞门沉箱现浇施工方法、预留顶升廊道形式、Ω形止水带埋件安装方法、沉箱顶升方法、沉箱回落方式、止水施工应用效果等。原位现浇浮坞门施工工艺已成功应用于大连湾海底隧道干坞预制场,积累了施工经验和参数,可为类似原位现浇沉箱结构工程提供参考。As the entrance structure of dry dock chamber,the caisson of floating dock gate is constructed by cast-in-situ technology,which is very difficult to be constructed.This paper introduces in detail the cast-in-situ construction method of caisson of floating dock gate,the form of reserved jacking corridor,the installation method of embedded parts ofΩ-type water stop,the jacking method of caisson,the falling mode of caisson,and the application effect of water stop construction.The construction technology of cast-in-situ floating dock gate has been successfully applied to the dry dock prefabrication yard of Dalian Bay subsea tunnel project.The construction experience and related construction parameters have been accumulated,which can provide reference for similar cast-in-situ caisson structure engineering.

关 键 词：浮坞门沉箱 原位现浇 Ω形止水带 廊道 顶升工艺 

分 类 号：U673.33[交通运输工程—船舶及航道工程] U655.11[交通运输工程—船舶与海洋工程]