Browse > Article
http://dx.doi.org/10.14346/JKOSOS.2016.31.2.57

A Study on the Stability of Existing Subway Tunnel due to Construction of New Underpass  

Chung, Jee-Seung (Department of Railroad Civil Engineering, Dongyang University)
Choi, Jae-Young (Dongbu Engineering)
Lee, Jin-Hyuk (Samju E&Tech)
Publication Information
Journal of the Korean Society of Safety / v.31, no.2, 2016 , pp. 57-63 More about this Journal
Abstract
Recently, subways in the city are formed a vast underground network which is interfered with construction when large-scale infrastructure will be planned to nearby existing subway tunnels. Researches have been restricted to estimate stability of existing subway tunnel due to adjacent excavation causued by small construction such as buildings. In this paper, OO underpass is planned on the top of existing subway tunnel, which will be need large-scale excavation, is selected as a subject of study. And the purpose of this study is to analyze the effects on existing subway tunnel due to excavation by stages on construction of underpass. The 3D-numerical analysis was performed by using the MIDAS/GTS program. The stability on existing subway tunnel caused by sequential excavation is analysed using numerical results. Based on the analysis, the excavation orders and reinforcement methods was suggested for stability of exiting subway tunnel.
Keywords
underpass; excavation; subway tunnel; reinforcement; numerical analysis;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 C. S. Yoo and A. R. Song, " Effects of Tunnel Construction on an Existing Tunnel Lining", Journal of Korean Tunnelling and Unerground Space Association, Vol. 8, No.4, pp.307-324, 2006.
2 H. S. Lee, D. Y. Kim, B. S. Chun and H. S. Jung, "A Study on the Optimum Range of Reinforcement in Tunneling Adjacent to Structures", Journal of Korean Tunnelling and Unerground Space Association, Vol. 11, No.2, pp.199-6211, 2009.
3 J. M. Lee and S. D. Lee, "Behavior of Building Lower Part Passage Tunnel due to Adjacent Ground Excavation", Journal of Korean Tunnelling and Unerground Space Association, Vol. 20, No. 5, pp.369-377, 2010.
4 Y. S. Byun, K. S. Jung and B. S. Chun, "A Case Study on Reinforcement Method by Excavation Adjacent to the Subway Tunnel using Numerical Analysis", Journal of Korean Geo-Environmental Society Conference, Vol. 12, No.9, pp.5-11, 2011.
5 J. S. Chung, K. Y. Lee, Y. S. Kim and S. G. Lee, "A Study on the Behaviour of Existing Subway Tunnel due to Demolition of Old Buildings and Construction of New Buildings", Journal of Korean Geo-Environmental Society, Vol. 15, No.10, pp.23-28, 2014.
6 S. D. Lee, "Tunnel Mechanics", CIR Co, pp.712-717, 2013.