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Advances in Civil Engineering
Volume 2018, Article ID 5181954, 14 pages
Research Article

Optimal Analysis of Tunnel Construction Methods through Cross Passage from Subway Shaft

1School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
2Chinese Railway Bridge Engineering Bureau Group Co. Ltd., Tianjin 300300, China

Correspondence should be addressed to Junbao Wang; moc.361@oabnujgnawdjax

Received 18 August 2017; Accepted 27 December 2017; Published 28 February 2018

Academic Editor: Giovanni Garcea

Copyright © 2018 Zhanping Song et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The conversion section of the cross passage and shaft is a priority concern in the stress transformation of a tunnel structure during subway underground excavation. In the construction of Subway Line 5 in Xi'an, China, the main line in the loess layer was constructed through the cross passage from the subway shaft of the Yue Deng Pavilion–San Dian Village Station tunnel section. Numerical simulation and field measurement were adopted to study the construction stability of the cross passage and shaft under two possible construction methods: the “shaft followed by cross passage construction” method and the “cross passage parallel shaft construction” method. The results showed that the surface deformation and plastic zone of the surrounding rock are similar under the two construction methods. However, of the two, the “cross passage parallel shaft construction” method was more advantageous in controlling the structural deformation of the original shaft and the stress distribution of the horsehead structure. The field monitoring data showed that the surface settlements and the deformation of the original shaft structures meet the requirement of control standards under the “cross passage parallel shaft construction” method.