地铁平行换乘站中后建车站施工技术

Construction Technology of Latter Station for Metro Parallel Transfer Interchange

广州地铁高增站为9号线和3号线的换乘站,地下1层框架结构,站厅层位于地面1层,其中3号线已建成并开通运营,9号线车站为后建车站,基坑支护结构直接利用了3号线站的支护桩,其主体结构有南北两个衔接处需要进行改造,文中介绍了9号线站基坑围护结构体系、基底薄弱地层加固、主体结构改造施工及施工监测等关键施工技术和措施。

Metro station Gaozeng,which contains one underground frame structure level and one concourse level above ground,is a parallel transfer interchange of Metro Line 9 and Line 3 which is in operation. Gaozeng Station for Line 9 is a latter station,which shoring system is continue use of the one of Line 3,and there are two main structure connections joints need to be modified located at north and south. This article is about the construction technology of shoring system for metro station of line 9,ground improvement,main structure modification and monitoring etc..