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- Title
暗挖地铁车站与车站行车隧道同期建造技术研究.
- Authors
左建周; 李兆平; 王全贤; 张 存
- Abstract
The Xiaoyingxilu subway station of the south extension project of Beijing Metro ChangPing line is a double-layer and three-span underground station, which is constructed by PBA construction method, and the tunnels at both ends of the station are constructed by shield tunneling method. The original design of the construction process is as follows: the shield can only pass through the station after the construction of the base plate of the station structure is completed. Since Xiaoyingxilu Station is a shallow-buried underground subway station and the construction period will be longer, it is difficult to provide conditions for shield reception and departure before the arrival of the shield tunneling machine, which will affect the target of tunnels through. For this reason, the scheme of simultaneous construction of underground subway station and station traffic tunnels is put forward. The specific construction procedure is as follows. First, four small guide holes on the upper level of the station are constructed, and then the shield tunneling passes through the station; while shield tunneling is passing through the station, the construction of side piles in guide holes and station steel pipe columns is carried out alternately with shield tunneling. This construction method can ensure the mutual independence of shield tunneling and underground station excavation. This paper elaborates the construction process of the scheme, analyzes the advantages of the construction scheme of the subway station constructed simultaneously with the station traffic tunnels, discusses the problems existing in the scheme, and puts forward countermeasures. The results of numerical simulation and field monitoring show that the measures adopted have achieved good results.
- Subjects
BEIJING (China); UNDERGROUND construction; SUBWAY stations; TUNNELS; IRON &; steel plates; TUNNEL design &; construction; COMPUTER simulation; STEEL pipe
- Publication
Railway Standard Design, 2022, Vol 66, Issue 7, p108
- ISSN
1004-2954
- Publication type
Article
- DOI
10.13238/j.issn.1004-2954.202103160001