Browse > Article

A Study on the Stress Distribution of Pillar Basement during Two-arch Tunnel Excavation in Discontinuous Rock Mass  

Kim, Hong-Moon ((주)평화엔지니어링 지반공학부)
Lee, Sang-Duk (아주대학교 건설교통공학과)
Publication Information
Tunnel and Underground Space / v.19, no.2, 2009 , pp. 123-131 More about this Journal
Abstract
Large scale model tests and numerical analyses were performed in order to investigate the stress distribution on the base of pillar during two-arch tunnel excavation in the regularly jointed rocks. It was observed that the stress was irregularly distributed on pillar and the angle of discontinuities seriously influenced on the stress distribution on the pillar base in the discontinuous rock mass. In the numerical analyses results, It was shown that the stress level of pillar was greatly changed depending on the excavation sequences of two-arch tunnel. It was also observed that stress distributed eccentrically at the pillar as well as at the base of pillar. It is necessary to consider this point for the design of two-arch tunnel.
Keywords
Two-arch tunnel; Pillar; Stress distribution; Discontinuous rock mass;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 이상덕, 2007, '절리암반에서 2-Arch 터널의 필러하중과 지반변위', 한국터널공학회 논문집 Vol. 9, No. 1
2 김홍문, 김찬웅, 홍용희, 이상덕, 2004, '라이닝 강성에 따른 2-Arch 터널 필러부의 거동', 대한토목학회 전문학회 세미나
3 조태진 외, 2007, '21C 암반역학', 건설정보사, pp. 269-271, 309-311
4 Hoek, E. and Brown, E. T., 1980, 'Underground Excavations in Rock', pp.113-116
5 이상덕, 전은숙, 2004, '사질토 지반에서 2Arch 터널의 거동', 한국터널공학회 논문집, Vol. 6, No. 2
6 오규철, 도종남, 천병식, 2007, '2-Arch 터널 중앙벽체 작용하중 산정에 관한 연구', 한국지반공학회 논문집 Vol. 23, No. 11
7 Timoshenko, S. P. and Goodier J. N., 1970, 'Theory of Elasticity', pp.15-33
8 Itasca Consulting Group, 2004, 'UDEC manual
9 김상균, 박동욱, 2003, '수치해석적 접근을 통한 2Arch 터널의 거동양상 고찰', 한국지반공학회 봄 학술발표회, pp. 225-232
10 Kamimura, M., Sugiyama, T., Ishikawa, S., Yoneda, H., and Nakagawa, K., 2002, 'Discussion on the behaviours of parrell tunnel with a small clearance', AITES-ITA DOWNUNDER 2002 Congress and Abstract Book Vol. 1, pp. 898-906
11 Matsuda, T., Toyosato, E., Igarashi, M., Nashimoto, Y., and Sugiyama, T., 1997, 'A study on design methods for twin tunnels constructed by the single drift and central pier method', Proceedings of Studies on Tunnel Engineering Vol. 7
12 Matsuda, T., Terada, K., Igarashi, M., and Miura, K., 1998, 'Ground behavior and settlement control of twin tunnels in soil ground', Tunnels and Metropolises, Negro Jr & Ferreira(eds), pp. 1193-1198
13 Matsumoto, Y. and Nishioka, T., 1991, 'Theoretical tunnel mechanics', University of Tokyo Press, pp. 3-37
14 전은숙, 김홍문, 이상덕, 2005, '수평불연속면 하부 2-Arch 터널의 거동특성', 한국터널공학회 논문집 Vol. 7, No. 3