港珠澳大桥香港口岸人工岛大型箱涵浮运封闭工艺  

Floating transport and sealing technology for large-scale box culverts adopted in artificial island of Hong Kong-Zhuhai-Macao Bridge-Hong Kong Boundary Crossing Facilities

作　　者：马林 MA Lin(CCCC Third Harbor Consultants Co.,Ltd.,Shanghai 200032,China)

机构地区：[1]中交第三航务工程勘察设计院有限公司,上海200032

出　　处：《水运工程》2022年第3期185-188,192,共5页Port & Waterway Engineering

摘　　要：港珠澳大桥香港口岸人工岛大型箱涵采用节段预制、水上浮运的安装工艺。为保证浮运过程中箱涵不出现渗漏,对箱涵封闭结构(钢封门)进行结构设计与验算,并通过多次密水试验对钢封门的止水构造进行优化。结果表明,上述箱涵封闭工艺是可行的,现场29个节段的水上浮运过程中未发现渗水、漏水等病害,并且该工艺显著提升施工工效、降低施工成本,可为类似工程实施提供参考。The installation technologies for large-scale box culverts adopted in the artificial island of Hong Kong-Zhuhai-Macao Bridge-Hong Kong Boundary Crossing Facilities(HKBCF)are sectional prefabrication and floating transport. To avoid the leakage of box culverts during floating transport, we carry out structural design, calculation, and verification for the leakproof structure of box culverts(with steel seal doors)and optimize the leakproof structure on the basis of watertightness tests. The result shows that the above sealing technology is feasible, and no seepage or leakage is reported for 29 sections of prefabricated box culverts during floating transport. Moreover, the technology significantly improves the construction efficiency and reduces the construction cost, which may serve as a reference for similar projects.

关 键 词：箱涵 浮运 密封 钢封门 港珠澳大桥 

分 类 号：U655.4[交通运输工程—港口、海岸及近海工程]