Estimation of Total Displacements by RMR Grades using 3-Dimensional Numerical Analysis

3D 수치해석을 이용한 퇴적암 터널의 암반 등급별 전변위 산정

  • Yim, Sung-Bin (Department of Earth & Environmental Sciences, Chungbuk National University) ;
  • Yun, Hyun-Seok (Department of Earth & Environmental Sciences, Chungbuk National University) ;
  • Seo, Yong-Seok (Department of Earth & Environmental Sciences, Chungbuk National University) ;
  • Park, Si-Hyun (Korea Infrastructure Safety & Technology Corporation, Underground Facility Dept.)
  • 임성빈 (충북대학교 지구환경과학과) ;
  • 윤현석 (충북대학교 지구환경과학과) ;
  • 서용석 (충북대학교 지구환경과학과) ;
  • 박시현 (한국시설안전기술공단 지하시설실)
  • Published : 2007.06.30


Tunnel displacement happens during the process of stress redistribution by tunnelling. Tunnel displacement can be divided into 3 types such as displacements occurring before excavation, non-measured displacements after excavation and measured displacements after excavation. Because measurements of displacements occurring before excavation and non-measured displacement after excavation are difficult and time-consuming in the field, many researchers have studied on total displacement and its characteristics with excavation using numerical analysis. In this study, we used a 3-D back analysis to estimate total displacement by rock mass grades in tunnel constructed in sedimentary rock. We reduced error between measured displacements and calculated displacements from a 3-D numerical analysis, and then estimated suitable rock mass properties by RMR classes. Ultimately, Logistic nonlinear regressions of total displacement with tunnelling were estimated by least square estimation.


  1. 김문겸, 장정범, 박태균, 1995, 탄소성 지반내 터널굴착에 따른 역해석, 대한토목학회지, 15(2), pp.483-490
  2. 김정환, 배기열, 최용규, 2001, 수평경사계를 이용한 초기변위 측정과 역해석, 대한토목학회 학술발표회, pp.2014-2017
  3. 김학준, 이성호, 신휴성, 배규진, 2006, 국내 암반분류 사례를 통한 싱글쉘 터널 지보량 산정 연구, 대한지질 공학회지, 16(3), pp.283-291
  4. 민덕기, 최석욱, 박명철, 1996, 터널의 계측변위를 이용한 역해석기법에 관한 연구, 가을학술발표회논문집, 한국지반공학회, pp.71-78
  5. 배규진, 김창용, 문홍득, 홍성완, 1997, Umbrella Arch 공법에 의한 터널 천단부 보강시 주변지반의 거동에 관한 연구, 터널과 지하공간, 한국암반공학회, 7(4), pp.299-309
  6. 서용석, 임성빈, 박시현, 안명운, 우상백, 2006, 터널 시공 중 막장 선행변위 계측기법, 대한지질공학회지, 16(3), pp.307-313
  7. 서용석, 홍성완, 배규진, 김광염, 손창규, 오병화, 2002, 능동터널 막장 선행변위 계측을 위한 현장 시험, 제 57차 추계공동학술발표회, 91p
  8. 이연규, 이정인, 1997, 다단계 터널굴착시 계측된 증분변 위를 이용한 역해석 기법의 개발, 한국지반공학회지, 13(1), pp.123-136
  9. 이정인, 김치환, 이연규, 1992, 현장 변위 계측치를 이용 한 역해석, 대한토목학회 학술발표회, pp.372-376
  10. 허종석, 이정인, 조태진, 이연규, 1996, 연암에 굴착되는 터널의 계측변위를 이용한 역해석, 한국자원공학회지, 33(6), pp.438-447
  11. Cividini, A., Majer, G. and Nappi, A., 1983, Parameter estimation of a ststic geotechnical model using a Bayes approach, International Sciences & Geomechanics Abstracts, pp.215-220
  12. Gioda, G. and Majer, G., 1980, Direct search solution of an inverse problem in elastoplasticity; Identification of cohesion, friction angle and in-situ stress by pressure tunnel test, Int. J. Num. Meth. Engng., 15, pp.1823-1848
  13. Harazaki, I., Aono, H., Matsuda, A., Aoki, T. and Hakoishi, Y., 1998, Field observation of large tunnel supported by umbrella method; Case of Maiko Tunnel in Kobe, Japan, Proc. of the World Tunnel Cong., 98 on Tunnels and Metropolises, 2, pp.1009-1014
  14. Hisatake, M. and Ito, T., 1985, Back analysis for tunnels by optimization method, Fifth International Conference on Numerical Methods in Geomechanics, pp.1301-1304
  15. Panet, M. and Guenot, A., 1982, Analysis of convergence behind the face of tunnel, Tunnelling 82, IMM, Brighton, pp.197-204
  16. Pelizza, S., Pelia, D. and Oreste, P. P., 1994, A new approach for ground reinforcing design in tunnelling, soil and rock reinforcements, Tunnelling and Ground Condition, Abdel Salem(ed), Balkema, pp.517-522
  17. Sakurai, S. and Takeuchi, K., 1983, Back analysis of measured displacements of tunnel, Rock Mechanics and Rock Engineering, pp.173-175
  18. Shirakawa, K., Aoki, T., Fujii, Y. and Nakao, T., 1999, Excavation through semicircular-shaped shell formed by umbrella method at fault zone beneath desely residential area, Proc. of the World Tunnel Cong. 99 on Challenge for the 21st Century, 1, pp. 441-447