上海花木雨水泵站沉井刃脚垫层施工经验

Experience in Construction of Caisson Cutting Edge Bedding in Huamu Drainage Pumping Station in Shanghai

随着施工技术发展 ,沉井制作由原来的分节制作分节下沉 ,发展成分节制作一次下沉 ;沉井刃脚由原来用垫木满足地基承载力的施工方法 ,改成用混凝土垫层做临时基础。通过总结工程实践 ,介绍沉井混凝土垫层施工设计实例和结构计算。

Traditionally, caissons are both fabricated and sunk in sections, but newly developed technique allows caissons to be sunk once for all, with the wooden pad for the cutting edge replaced by concrete bedding as a temporary foundation. Introduced here is a summary of the experience in the construction design and structural calculation of such a bedding.