ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2013, Vol. 33 ›› Issue (12): 983-988.DOI: 10.3973/j.issn.1672-741X.2013.12.001
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LI Li
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Abstract:
The Southern part section of Phase II Project of Line 8 of Beijing Metro,is located in central downtown area,has complicated surrounding environment and large design and construction difficulties. In this paper, the characteristics and difficulties of the project are analyzed.Key technologies,including shieldboring closely underneath existing Metro station, longistance shield boring underneath residual buildings,launching and receiving of shield machines of stacked tunnels, and Uturn and lifting of shield machine in mined cross gallery, as well as the designed program, technical innovations and technical countermeasures,are presented in detail. The paper can provide references for similar projects in the future.
Key words: Beijing Metro, cut and cover, mining method, risk source, stacked shieldbored tunnel, Uturn in tunnel, supperdeep foundation pit
LI Li. Design and Construction of Southern Part of Phase II Project of Line 8 of Beijing Metro[J]. Tunnel Construction, 2013, 33(12): 983-988.
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URL: http://www.suidaojs.com/EN/10.3973/j.issn.1672-741X.2013.12.001
http://www.suidaojs.com/EN/Y2013/V33/I12/983