上软下硬地层浅埋大跨地铁车站施工技术

Construction Technology of Shallow Large Span Subway Station in Upper-soft and Lower-hard Stratum

针对上软下硬地层浅埋大跨地铁车站施工技术需求,融合双侧壁导坑法和拱盖法,提出一种适用于上软下硬地层的浅埋大跨地铁车站施工方法。在提炼出一些创新技术内容的基础上,开发出一套上软下硬地层浅埋大跨地铁车站施工技术。通过工程应用案例示范,给出了具体施工工序和施工参数。

Aiming at the construction technical requirements of shallow large span subway station in upper-soft and lower-hard stratum,the fusion of double side wall guide pit method and dome method,a construction method for shallow large span subway station suitable for upper-soft and lower-hard stratum is proposed.On the basis of extracting some innovative technical content,a set of construction technology for shallow large span subway station in upper-soft and lower-hard stratum is developed.Through the engineering application case,the specific construction procedures and construction parameters are given.