现代压气沉箱工法在轨道交通施工中的应用

现代压气沉箱工法适宜于环境要求高、开挖深度大、施工场地小的地下工程的施工。结合我国首次应用现代压气沉箱工法进行地铁中间风井(单箱)施工的工程实例,介绍了现代压气沉箱工法的原理、设计方法、施工基本工艺,还对连续沉箱的接头连接和防水设计进行了初步探讨。

Modern Pneumatic Caisson Construction Method Applied to Construction of Rail Transit Systems

The modern pneumatic caisson method is applicable to construction of works underground with high environment requirements, deep excavation and limited operation space. It is used for the first time in China in construction of the intermediate vent shaft (single barrel) in the subway. Introduced hereby are its principles, design method and general construction workmanship, with initial studies on the joint connection and waterproof design of the continuous caissons.