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港珠澳大桥段非通航孔桥大型预制墩台安装施工,采用湿法安装墩台施工止水工艺是关键技术,采用分离式胶囊柔性止水技术实现承台预留孔与托盘间的止水、钢套箱自重力压缩GINA止水带实现钢套箱与预制承台间的止水,成功实践于项目55个墩台安装施工表明该止水施工工艺可行。
The construction of large prefabricated piers in Hong Kong-Zhuhai-Macau Bridge section with non-navigable bridge is the key technology to adopt the wet installation of piers and piers to stop the process of sealing water. Water and steel box compression of self-gravity GINA water stop realized between the steel sleeve box and prefabricated caps, the successful practice of 55 piers in the project installation shows that the water stop construction process is feasible.