世博会园区综合管沟混凝土施工技术

综合管沟与常规现浇箱涵比较,有抗渗要求高、预埋件多等特点。针对箱涵类混凝土施工的通病,在上海世博会园区综合管沟工程的混凝土施工中,采取了解决办法。介绍了模板与支架的设计、安装及施工监控,混凝土施工质量的控制,地下防水控制,特殊段施工控制要点等。施工效果良好,总结了可借鉴的经验。

On Techniques in Concrete Works of Utility Tunnel in 2010 World Expo Zone

Compared with the conventional in-situ box culvert, the utility tunnel is characterized with higher seepage resistance, more embedded parts, etc. To cope with the common problems in construction of the box culvert concrete works, solutions are found in construction of the utility tunnel concrete works in Shanghai World Expo Zone. Introduced hereby are the design, erection and construction supervision of the formwork and support, control over the quality of concrete works, control over the ground water prevention, key points to control in some special sections, etc. The result is satisfactory, and the experience therefrom is summed up for reference.