港珠澳大桥沉管隧道接头防水技术

Waterproofing Technology for Pipe Joints of Immersed Tube Tunnel of Hongkong-Zhuhai-Macao Bridge

介绍了港珠澳大桥沉管隧道节段接头防水技术,包括工程概况、施工难点分析、防水设计方案等。重点介绍了喷涂聚脲技术在该工程防水施工中的应用,包括聚脲施工环境要求、基面要求、施工步骤、涂层质量要求、喷涂注意事项及验收标准等。

The article describes waterproofing technology for pipe joints of immersed tube tunnel of Hongkong-Zhuhai-Macao Bridge, including engineering situation, construction difficulties and waterproofing design. It focuses on the application of spray polyurea technology, such as construction environment, requirements of substrate, construction steps, coating quality, matters needing attention and acceptance standard.