异形大沉井的下沉施工

Sinking Construction of Special-shaped Large Open Caisson

结合宁波某污水处理厂粗格栅沉井施工,对异形大沉井的下沉施工技术进行了总结。通过对异形大沉井施工过程中的重难点进行分析,研究出了相应措施,通过对沉井在制作、下沉过程中的接高系数、下沉系数等稳定性要求进行验算,总结出了一套相对可靠的施工技术,可供类似工程借鉴。

Combined with the construction of coarse grid open caisson in a sewage treatment plant in Ningbo,the sinking construction technology of special-shaped large open caisson is summarized.Through the analysis on the key and difficult points in the construction process of the special-shaped large open caisson,the corresponding measures are studied.Through theoretical calculation,the stability requirements of connecting height coefficient and sinking coefficient in the production and sinking process of open caisson are checked,and a set of relatively reliable construction technology is summarized,which can be used as reference for similar projects.