Numerical investigation on the effect of backfill grouting on ground behavior during shield TBM tunneling in sandy ground

사질토 지반을 통과하는 쉴드 TBM에서 뒤채움 그라우팅이 지반 거동에 미치는 영향에 대한 수치해석적 연구

  • Oh, Ju-Young (Infrastructure Division, Samsung C&T Corporation) ;
  • Park, Hyunku (Infrastructure Division, Samsung C&T Corporation) ;
  • Chang, Seokbue (Infrastructure Division, Samsung C&T Corporation) ;
  • Choi, Hangseok (School of Civil, Environmental and Architectural Engineering, Korea University)
  • 오주영 (삼성물산 건설부문 인프라본부) ;
  • 박현구 (삼성물산 건설부문 인프라본부) ;
  • 장석부 (삼성물산 건설부문 인프라본부) ;
  • 최항석 (고려대학교 건축.사회환경공학부)
  • Received : 2018.01.29
  • Accepted : 2018.03.05
  • Published : 2018.03.31


The shield TBM method is widely adopted for tunneling works in urban area because it has more beneficial ways to control settlement at ground surface than conventional mined tunneling. In the shield tunneling, backfill grouting at tail void is crucial because it is supposed not only to restraint ground deformation around tail void during excavation but also to compensate precedent ground settlement by pushing up the ground with highly pressurized grout. However, the tail void grouting has been found to be ineffective for settlement compensation particularly in sandy ground, which might be caused by complicate interaction between ground and tail void grouting. In this paper, the effects of tail void grouting on behavior of ground in shield TBM tunneling were investigated based on 3-dimensional finite element analyses. The results of numerical analyses indicated that backfill grouting actually reduces settlement by degrading settlement increasing rate in excavation, which means decrease of volume loss. Meanwhile, the grouting could not contribute to compensate the precedent settlement, because reduction of volume loss by grouting was found to be counterbalanced by volume change of ground.


Grant : 고수압 초장대 해저터널 기술자립을 위한 핵심요소 기술개발

Supported by : 국토교통과학기술진흥원


  1. ABAQUS (2011), "Abaqus/Standard v.6.11, User Manual", Hibbit, Karlsson & Sorensen, Inc.
  2. Ata, A.A. (1996), "Ground settlements induced by slurry shield tunnelling in stratified soils", Proceedings of the North American Tunnelling '96, Vol. 1, pp. 43-50.
  3. Attewell, P.B. (1978), "Large ground movements and structures, Chapter: ground movements caused by tunnelling in soil", Pentech Press, pp. 812-948.
  4. Bezuijen, A., Talmon, A.M. (2003), "Grout the foundation of a bored tunnel", Proceedings of the International Conference on Foundations Innovations, Observations, Design & Practice (ICOF 2003 Dunde), London, pp. 95-100.
  5. Gu, B.H., Park, E.T. (1997), "EPB shield tunnelling in sand", Proceedings of the KGS Spring '97 National Conference, Korea, pp. 113-124.
  6. Han, Y.W., Zhu, W., Zhong, X.C., Jia, R. (2007), "Experimental investigation on backfill grouting deformation characteristics of shield tunnel in sand", Underground Space - the 4th Dimension of Metropolises, London, Taylor & Francis Group, pp. 303-306.
  7. Hansmire, W.H., Cording, E.J. (1985), "Soil tunnel test section: case history summary", Journal of Geotechnical Engineering, Vol. 111, No. 11, pp. 1301-1320.
  8. Jancsecz, S., Frietzsche, W., Breuer, J., Ulrichs, K.R. (2001), "Minimierung von Senkungen beim Schildvortrieb am Beispiel der U-Bahn Dusseldorf", Taschenbuch fur den Tunnelbau, pp. 165-214.
  9. Jun, G.C., Kim, D.H. (2016), "A interaction on the estimating shield TBM tunnel face pressure through analytical and numerical analysis", Journal of Korean Tunnelling and Underground Space Association, Vol. 18, No. 3, pp. 273-282.
  10. Lanier, J., di Prisco, C., Nova, R. (1991), "Etude experimentale et analyse theorique de l'anisotropie induite du sable d'Hostun", Revue Francaise de Geotechnique, Vol. 57, pp. 59-74.
  11. Leca, E., New, B. (2007), "ITA/AITES Report 2006 on Settlements induced by tunneling in soft ground", Tunnelling and Underground Space Technology, Vol. 22, No. 2, pp. 119-149.
  12. Mahr, M. (2006), "Ground movements induced by shield tunneling in non-cohesive soils", Logos Verlag Berlin, pp. 1-163.
  13. Mair, R.J., Taylor, R.N. (1997), "Theme lecture: bored Tunnelling in the urban environment", Proceedings of the 14th International Conference on Soil Mechanics and Foundation Engineering, Vol. 4, pp. 2353-2385.
  14. Marshall, A.M., Farrell, R., Klar, A., Mair, R. (2012), "Tunnels in sands: the effect of size, depth and volume loss on greenfield displacements", Geotechnique, Vol. 62 , No. 5, pp. 385-399.
  15. Meschke, G., Kropik, C., Mang, H.A. (1996), "Numerical analyses of tunnel lining by means of a viscoplastic model for shotcrete", International Journal for Numerical Methods in Engineering, Vol. 39, No. 18, pp. 3145-3162.<3145::AID-NME992>3.0.CO;2-M
  16. Mo, H.H., Chen, J.S. (2008), "Study on inner force and dislocation of segments caused by shield machine attitude", Tunnelling and Underground Space Technology, Vol. 23, No. 3, pp. 281-291.
  17. Moh, Z.C., Ju, D.H., Hwang, R.N. (1996), "Ground movements around tunnels in soft ground. Proceedings of the International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, London, pp. 311-315.
  18. Oh, J.Y., Park, H., Kim, D., Chang, S., Lee, S., Choi, H. (2017), "Study on the effect of tail void grouting on the short- and long-term surface settlement in the shield TBM Tunneling using numerical analysis", Journal of Korean Tunnelling and Underground Space Association, Vol. 19, No. 2, pp. 265-281.
  19. Park, H., Oh, J.Y., Chang, S., Lee, S. (2016), "Case study of volume loss estimation during slurry TBM tunnelling in weathered zone of granite rock", Journal of Korean Tunnelling and Underground Space Association, Vol. 18, No. 1, pp. 61-74.
  20. Suwansawat, S. (2002), "Earth pressure balance (EPB) shield tunneling in Bangkok: ground response and prediction of surface settlements using artificial neutral networks", Doctoral Dissertation, Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, pp. 35-595.