Browse > Article

Prediction of a Fault Zone ahead of a Tunnel Face based on the Orientation of Displacement Vectors  

Kim, Kwang-Yeom (Geotechnical Engineering & Tunnelling Research Div., Korea Institute of Construction Technology (KICT))
Yim, Sung-Bin (Geotechnical Engineering & Tunnelling Research Div., Korea Institute of Construction Technology (KICT))
Kim, Jang-Kyeom (Tunnel Dept., Danwoo Engineering & Construction Co.)
Seo, Yong-Seok (Department of Earth & Environmental Sciences, Chungbuk National University)
Kim, Jin-Woung (Hongcheon Yangyang Construction Office, Korea Expressway Corporation)
Publication Information
The Journal of Engineering Geology / v.20, no.4, 2010 , pp. 371-380 More about this Journal
Abstract
A three-dimensional finite element analysis was performed to predict the location of a fault zone ahead of a tunnel face based on convergence displacement. Geometrical models for the numerical analysis were developed based on the possible geometric intersection between the fault zone and the tunnel. Fifteen fault models were generated from combinations of faults with five different strikes (at $15^{\circ}$ intervals) and three dips (vertical, $45^{\circ}$ and $-45^{\circ}$) relative to the tunnel route. The displacements on the crown and side walls were calculated and analyzed using a vector orientation approach. As a result, nine representative prediction charts were developed, showing location and orientation of the fault zone based on convergence displacement.
Keywords
Three-dimensional analysis; Convergence displacement; Vector orientation; Trend line; Fault zone;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Sonmez, H., Gokceoglu, C, Nefeslioglu, H. A. and Kayabasi, A., 2006, Estimation of Rock Modulus: For Intact Rocks with an Artificial Neural Network and for Rock Masses with a New Empirical Equation, International Journal of the Rock Mechanics and Mining Sciences, 43, pp. 224-235.   DOI   ScienceOn
2 Schubert, W. and Steindorfer, A., 1996, Selective Displacement Monitoring Tunnel Excavation, Felsbau, 14, pp. 93-97.
3 Sellner P.J., 2000, Prediction of Displacements in Tunnelling, Ph.D. thesis, Graz University of Technology, Austria, 140p.
4 Schubert, W. and Reidmuller, G., 1995, Geotechnische Nachlese eines Verbruches-Erkenntnisse und Impulse Mitteilungsheft des Institues fr Bodenmechanik und Grundbau TU-Graz Heft 13, pp. 59-68.
5 Schubert, W. and Schubert, P., 1993, Tunnels in Squeezing Rock: Failure Phenomena and Counteractions, Proceedings of Assessment and Prevention of Failure Phenomena in Rock Engineering, Istanbul, Turkey. Rotterdam: A. A. Balkema, pp. 479-484.
6 김창용, 홍성완, 김광염, 백승한, 2004, 터널 내공변위 거동 분석에 관한 연구, 한국터널공학 학술논문집, 터널기술, 6(3), pp. 183-197.
7 Schubert, P. and Vavrovsky, G. M., 1994, Interpretation of Monitoring Results, World Tunnelling, pp. 351-356.
8 Schubert, W. and Budil, A., 1995, The Importance of Longitudinal Deformation in Tunnel Excavation, In: Fujii, T.(Ed), Proceeding of the 8th ISRM Congress on Rock Mechanics, Tokyo, 2, pp. 1411-1414.
9 김광염, 2007, 터널 막장 전방 단층대 예측을 위한 3차원 절대변위 계측 및 분석에 관한 연구, 서울대학교 대학원 공학박사 논문, 292p.
10 김기선, 김영섭, 유광호, 박연준, 이대혁, 2003, 터널 3차원 내공변위의 해석을 통한 막장전방 지반상태 변화 예측, 터널과 지하공단, 한국암반공학회지, 13(6), pp.476-485.   과학기술학회마을
11 한국건설기술연구원, 2005, SMART 터널 OBSERVATION EXPERT SYSTEM 개발 연구, 연구보고서, 480p.
12 Grossauer K, 2001, Tunneling in Heterogeneous Ground-Numerical Investigation of Stress and Displacements, Master thesis, Graz University of Technology, Austria, 106p.
13 Rabensteiner, K., 1996, Advanced Tunnel Surveying and Monitoring, Felsbau, 14(2), pp. 98-102.
14 Steindorfer, A. E, 1998, Short Term Prediction of Rock Mass Behaviour in Tunnelling by Advanced Analysis of Displacement Monitoring Data, Ph.D. thesis, Graz University of Technology, Austria, 120p.