Tunnel and Underground Space (터널과지하공간)

Korean Society for Rock Mechanics and Rock Engineering (한국암반공학회)
권호 표지

Stability Analysis of Tunnels Excavated in Squeezing Rock Masses

압출 암반내 굴착된 터널의 안정성해석

  • 정소걸 (한국지질자원연구원 지반안전연구부)
  • Published : 2003.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

Refering to the articles "Squeezing rocks in tunnels(Barla, 1995)" and "Tunnelling under squeezing rock conditions(Barla 2002)" this article deals with technologies for design, stability analysis and construction of the tunnel being driven in the squeezing rock mass. The definition of this type of behavior was proposed by ISRM(1994). The identification and quantification of squeezing is given according to both the empirical and semi-empirical methods available to anticipate the potential of squeezing problems in tunnelling. Based on the experiences and lessons learned in recent years, the state of the art in modem construction methods was reported, when dealing with squeezing rock masses by either conventional or mechanical excavation methods. The closed-form solutions available for the analysis of the rock mass response during tunnel excavation are described in terms of the ground characteristic line and with reference to some elasto-plastic models for the given rock mass. Finally numerical methods were used for the simulation of different models and for design analysis of complex excavation and support systems, including three-dimensional conditions in order to quantify the influence of the advancing tunnel face to the deformation behavior of the tunnel.

Keywords

References

  1. Rock Mechanics and Rock Engineering v.2 The squeezing potential of rock around tunnels: theory and prediction Aydan,o.;Akagi,T.;Kawamoto,T.
  2. Congresso Internazionale su Grandi Opere in Sotterraneo The San Donato Tunnel(Florence) Barla,G.;Pazzagli,G.;Rabagliati,U.;Travaglini,S.
  3. International Congress on Progress and Innovation in Tunnelling Stabilization measures in near surface tunnels in poor ground conditions Barla,G.
  4. ISRM News Journal v.3/4 Squeezing rocks in tunnels Barla,G.
  5. Tunnelling under squeezing rock conditions(Torino) Barla,G.
  6. Rivista Italiana di Geotecnica, Italian Geotechnical Journal v.34 no.1 Stress paths around a circular tunnel Barla,M.
  7. Rock Mechanics v.6 no.4 Engineering classification of rock masses for the design of tunnel supports Barton,N.;Lien,R.;Lunde,I.
  8. J. Geotech. Eng. Div. Am. Soc. Civ. Eng. v.109 Characteristic line calculations for rock tunnels Brown,E.T.;Bray,J.W.;Ladanyi,B.;Hoek,E.
  9. Engrg. Geol. v.39 Tunnelling through the young Himalayas-a case history of the Maneri-Uttarkashi power tunnel Goel,R.K.;Jethwa,J.L.;Paithakan,A.G.
  10. Int. J. Rock Mech. Min. Sci. v.34 Practical estimates of rock mass strength Hoek,E.;Brown,E.T.
  11. Sedimentary Rock Engineering, ISRM Regional Symposium Tunnel support in weak rock Hoek,E.;O.Chin-Der(ed.)
  12. Tunnels and Tunnelling International Predicting tunnel squeezing problems in weak heterogeneous rock masses Hoek,E.;Marinos,P.
  13. Draft of a paper to be submitted for publication in the ASCE Journal of Geotechnical and Geoenvironmental Engineering, 2000 Terzaghi Lecture Big tunnels in bad rock Hoek,E.
  14. Int. J. Rock Mech. Min. Sci. v.31 Comments and recommendations on design and analysis procedures for structures in argillaceous swelling rock International Society for Rock Mechanics(ISRM)
  15. User's manual(Ver. 3.4) - FLAC - Fast Lagrangian Analysis of Continua ITASCA Inc.
  16. Design and Performance of Underground Excavations, ISRM Symposium Estimation of ultimate rock pressure for tunnel linings under squeezing rock conditions - a new approach Jethwa,J.L.;Singh,B.;Singh,B.;E.T.Brown(ed.);J.A.Hudson(ed.)
  17. Tunnel v.5 Tunnelbau in druckhaftem Gebirge - Tunnelling in squeezing rock Kovari,K.
  18. Progress in Tunnelling after 2000, AITES-ITA 2001 World Tunnel Congress v.2 The evolution of reinforcement of the advance core using fibre glass elements for short and long term stability of tunnels under difficult stress-strain conditions: design, technologies and operating methods Lunardi,P.;Bindi,R.
  19. Tunnels and Tunnelling Internaitonal no.Special SUP. May Design and constructing tunnels - ADECO-RS approach Lunardi,P.
  20. Doctoral Thesis, Department of Civil Engineering, Technical University Graz Ductile support system for tunnels in squeezing rock Moritz,A.B.
  21. Rock Mechanics and Rock Engineering v.29 no.3 Two case histories of tunnels through squeezing rocks Panet,M.
  22. Gallerie e Grandi Opere Sotterranee v.4 Stato di sforzo e di deformazione intorno ad una galleria circolare Ribacchi,R.;Riccioni,R.
  23. Rock Mechanics and Rock Engineering v.29 no.3 Dealing with squeezing conditions in Alpine tunnels Schubert,P.
  24. Lo scavo meccanizzato di gallerie, MIR 2000 TBM excavation of tunnels in squeezing rock Schubert,W.;G.Barla(ed.)
  25. Tunnelling and Underground Space Technology v.7 Correlation between observed support pressure and rock mass quality Singh,B.;Jethwa,J.L.;Dube,A.K.;Singh,B.
  26. Rock mass classification:a practical approach in Civil Engineering Singh,B.;Goel,R.K.
  27. Rock defects and loads in tunnel supports. Rock tunneling with steel supports Terzaghi,K.;R.V.Proctor(ed.);T.L.White(ed.)