轨道交通换乘车站续建施工对已运营结构的影响分析

Analysis of Construction Impact of Rail Transit Interchange Station on Structure in Operation

随着轨道交通的发展和地下空间的开发,线路间将会形成越来越多的换乘节点。按照车站布置形式有“T”形换乘、“十”形换乘和“H”形换乘等。“T”形换乘和“十”形换乘为续建车站与既有换乘节点直接连接,“H”形换乘为续建车站与既有车站通道连接。对于不同期建设的换乘车站,续建车站基坑施工会对既有运营车站造成一定的影响。结合实际工程,分析和探讨了“T”形换乘续建车站基坑施工对既有运营车站结构的影响及实施评价。

With the development of rail transit and underground space, there will be more and more interchange nodes between rail transit lines. According to the station layout, the interchange modes can be classified into "T-shaped", "cross-shaped", "H-shaped", etc. For the "T-shaped" and "cross-shaped" interchange modes, the new station will directly connect with the existing station while the "H-shaped" interchange mode means that the two stations will be connected by a passage. For the interchange stations that are not constructed at the same time, the excavation of the new station will affect the operational station in a certain extent. For the "T-shaped" interchange mode, the excavation impact of the new station on the structure of the operational station is discussed and evaluated in the context of an actual project.