【摘要】 当轨道交通逐步形成网络化运营格局时,扩建型轨道交通枢纽站的施工,将面临一系列新的技术问题。通过上海地区若干扩建型枢纽站工程实践的总结,介绍了地下室向下加层、深基坑与既有车站共用围护结构、L型换乘站施工以及既有车站在改建中采用的抗浮措施等苛刻条件下施工并严格保护既有运营线路的若干关键技术。更多还原

【Abstract】 With the developing of metro traffic network running,the construction of expansion metro hub is facing a lot of new technology problems.Through some summaries of hubs projects in Shanghai area,several key technologies are introduced in the paper,including downwards adding layer of basement,shared envelop enclosure of deep foundation pit and existing stations,L-type transfer station construction,anti-floating measures and protecting existing running lines strictly.更多还原