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2004 Vol.6, Issue 3 Preview Page
A study of tunnel face reinforcement

터널 막장보강효과에 대한 연구

Daniele* Peila1
,
Pier Paolo Oreste1
,
Sebastiano Pelizza1
,
Sang-Hwan Kim2
,
,
,
1TUSc, Tunnelling and Underground Space center, Dipartimento di Georisorse e Territorio, Politecnico di Torino
1Department of Civil Engneering, Hoseo University, Asan, Korea
*교신저자. *Corresponding Author. 
30 September 2004. pp. 259-267
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Abstract

The practice of introducing and grouting reinforced fiber glass pipes or bar into the core to be excavated to maintain stable the tunnel face during excavation has been applied to many tunnels, where difficult geotechnical conditions are present, with good results in terms of safety and speed of works. This reinforcing technique, initially developed to be used jointly with the mechanical precut in clay, has been widely used with other geotechnical conditions as the only type of reinforcement or joined with other ground consolidation and/or reinforcement techniques (i.e. steel pipes or jet-grouting umbrella). At present same numerical researches have been carried out to find which are the real working conditions of the reinforcing elements but no final results have been obtained for the definition of the best design approaches. In this work the results of a three dimensional parametric numerical model is presented.

Keywords
Tunnel face reinforcement
tunnel face stability
elasto plastic model
strain softening model
fiber glass pipe

References
1
1. Arsena, F.P., Focaracci, A., Lunardi, P. and Volpe, A. 1991. La prima applicazione in Italia del pretaglio meccanico. Int. Congr. on Soil and Rock Improvement in Underground Works: 549- 556. Milano.
2
2.  Anagnostou, G. and Kovari, K. 1994. The face stability of slurry-shield-driven tunnels. Tunnelling and Underground Space Technology. 9:165-174.
3
3.  Barla G. 1994. Scavo di gallerie in prossimitˋa della superficie, MIR 94. Torino.
4
4.  Broms, B.B. and Bennermark, H. 1967. Stability of clay at vertical openings. ASCE J. of Soil Mech. and Found. Div.93:71-95.
5
5. Chambon, P. and Corte, J.F. 1994. Shallow tunnels in cohesionless soil: stability of tunnel face, Journal of Geotechnical Engineering, 120: 1148-1165. ASCE.
6
6.  Chaffois, S., Lar'eal, P., Monnet, J. and Chapeau, C. 1988. Study of a tunnel face in a grave site. Int. Congr. on Numerical Methods in Geomech. :1493-1498. Innsbruck.
7
7. Cornejo, L. 1989. Instability at the face: its repercussions for tunnelling technology. Tunnels and Tunnelling. 21:69-74.
8
8. Davies E.H., Gunn M.J. Mair R.J. and Seneviratne H.N. 1980. The stability of shallow tunnels and underground openings in cohesive material. G'eotechnique. 30: 397-416.
9
9.  Descoeudres, F. 1979. M'ecanique des roches II, Ecole Polytecnique Federale de Lausanne, Lausanne.
10
10. Egger, P. 1980. Deformation at the face of the heading and determination of the choesion of the rock mass. Underground Space Technology. 4: 313-318.
11
11. Einstein, H.H. and Schwartz, C. W. 1979. Simplified analysis for tunnel supports. J. of Geotech. Eng. Div. April:499-518.
12
12. Ellstein, A.R. 1986. Heading failure of lined tunnels in soft soils. Tunnels and Tunnelling. 18:51-54.
13
13. Einsenstein, Z. and Ezzeldine, O. 1994. The role of face pressure for shields with positive ground control. Proceedings of Int. Congr. Tunnelling and Ground Conditions, Cairo:557-571. Rotterdam: Balkema.
14
14. Grasso, P., Carrieri, G. and Mahtab, A. 1991. Control of deformation in the pillar between the twin bores of a tunnel in Aosta Valley - Italy. Proceeding of the Int. Symp. on “Effect of geomechanics on mine design, Leeds: 47-55. Rotterdam: Balkema.
15
15. Grasso, P., Mahtab M.A., Pelizza S., Rabajoli G. 1993. Consideration for design of shallow tunnels. Proceedings of Int. Conf. Underground Transportation Infrastructures. Toulon.
16
16. Kielbassa, H. and Duddeck, H. 1991. Stress strain field at the tunnelling face: three- dimensional analysis for two-dimensional technical approach. Rock Mech. and Rock Eng.24:115- 132.
17
17. Kimura, T. and Mair, J.R. 1981. Centrifugal testing of model tunnels in soft clay. Proceedings of 10th Int. Conference of Soil Mechanics and Foundation Eng. 2:319-322. Stockolm.
18
18. Hanafy, E.A. and Emery, J.J. 1980. Advancing face simulation of tunnel excavation and lining placement. Proceedings of 13th Canadian Rock Mech. Symp. :119-125. Toronto. 
19
19. Kirkland C.J. 1984. Design and Construction of Urban Tunnels - Compressed Air. Advances in Tunnelling tecnology and Subsurface Use. 4: 191-194.
20
20. Itasca Counsulting Group 1994. FLAC in 3D User Manual. Minneapolis.
21
21. Lee, K.M. and Rowe, R.K. 1990a. Finite element modelling of three tridimensional ground deformations due to tunnelling in soft cohesive soils: part 1 - method of analysis. Computer and Geotechnics. 10:87-110.
22
22. Lee, K.M. and Rowe, R.K. 1990b. Finite element modelling of three tridimensional ground deformations due to tunnelling in soft cohesive soils: part 2-results. Computer and Geotechnics. 10:111-138.
23
23. Lembo-Fazio A. and Ribacchi R. 1983. Stato di sforzo e deformazione intorno a una galleria sotto falda, Gallerie e Grandi Opere Sotterranee. 17: 27-36.
24
24. Lo, K.Y., Ogawa, T., Sekiguchi, K. and Rowe, R.K. 1990. Large deformation and face instability in tunnelling through thick fault zones. Proceedings of Int. Congr. Tunnelling in the 90’s: 101-120. Vancouver.
25
25. Lombardi G. and Amberg W. 1979. L’influence de la methode de construction sur l’ˋequilibre final d’un tunnel. Proceeding of 4th Int. Congr. on Rock Mech. 1:475-484. Montreux.
26
26. Lunardi, P., Bindi, R. and Focaracci, A. 1989. Nouvelles orientations pour le project et la construction des tunneles dans des terrains meubles- Etudes et expˊeriences sur le prˊeconfinement de la cavitˊe et la prˊeconsolidation du noyau au front. Proceedings of Congr. Tunnels et micro-tunnels en terrain meuble: 625-645. Paris.
27
27. Lunardi, P., Focaracci, A., Giorgi, P. and Papacella, A. 1992. Tunnel face reinforcement in soft ground design and controls during excavation. Proceedings of Int. Congr. Towards New Worlds in Tunnelling, Acapulco, Vol. 2:897-908. Rotterdam: Balkema.
28
28. Panet, M. and Guenot, A. 1982. Analysis of convergence behind the face of a tunnel. Proceedings of Tunnelling '82: 197-204. IMM.
29
29. Panet, M. and Guellec, P. 1974. Contribution a l’etude du soutenement d’un tunnel a l’arriere du front de taille. Proceedings of 3rd Int. Congress
30
on Rock Mech. 2:1163-1168. Denver.
31
30. Peila, D. 1994. A theoretical study of reinforcement influence on the stability of a tunnel face. Geotechnical and Geological Engineering. 12: 145-168.
32
31. Peila, D. and Poma, A. 1995. Study of tunnel face reinforcement with longitudinal elements. Gallerie e Grandi Opere Sotterranee. 45:38-49.
33
32. Peila D., Oreste P.P., Pelizza S., Poma A. 1996 “Study of the influence of sub-horizontal fiber- glass pipes on the stability of a tunnel face”, North American Tunnelling ’96, Washington, Balkema, Rotterdam, 425-432.
34
33. Poma, A., Grassi, F. and Devin, P. 1995. Finite difference analysis of displacement measurements for optimizing tunnel construction in swelling soils. Proceedings of Field Measurements in Geomechanics 4th International Symposium: 225- 236.Bergamo.
35
34. Romo, M.P. and C.Diaz, M. 1981. Face stability and ground settelment in shield tunnelling. Proceedings of 10th Int. Conference of Soil Mechanics and Foundation Engineerin. Vol.2: 357-360. Stockolm.
36
35. Schofield A.N. 1980. Cambridge geotechnical centrifuge operations. Gˊeotechnique. 30: 227-268.
Information
  • Publisher :Korean Tunneling and Underground Space Association
  • Publisher(Ko) :한국터널지하공간학회
  • Journal Title :Journal of Korean Tunnelling and Underground Space Association
  • Journal Title(Ko) :한국터널지하공간학회 논문집
  • Volume : 6
  • No :3
  • Pages :259-267
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