Geomechanics and Engineering

  • 제29권1호
  • /
  • Pages.41-51
  • /
  • 2022
  • /
  • 2005-307X(pISSN)
  • /
  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Assessment of time-dependent behaviour of rocks on concrete lining in a large cross-section tunnel

  • Mirzaeiabdolyousefi, Majid (Department of Mining, Petroleum & Geophysics Engineering, Shahrood University of Technology) ;
  • Nikkhah, Majid (Department of Mining, Petroleum & Geophysics Engineering, Shahrood University of Technology) ;
  • Zare, Shokrollah (Department of Mining, Petroleum & Geophysics Engineering, Shahrood University of Technology)
  • 투고 : 2021.08.23
  • 심사 : 2022.02.09
  • 발행 : 2022.04.10
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Tunneling in rocks having the time-dependent behavior, causes some difficulties like tunnel convergence and, as a result, pressure on concrete lining; and so instability on this structure. In this paper the time-dependent behaviour of squeezing phenomenon in a large cross section tunnel was investigated as a case study: Alborz tunnel. Then, time-dependent behaviour of Alborz tunnel was evaluated using FLAC2D based on the finite difference numerical method. A Burger-creep viscoelastic model was used in numerical analysis. Using numerical analysis, the long-time effect of squeezing on lining stability was simulated.This study is done for primary lining (for 2 years) and permanent lining (for 100 years), under squeezing situations. The response of lining is discussed base on Thrust Force-Bending Moment and Thrust Force-Shear Force diagrams analysing. The results determined the importance of consideration of time-dependent behaviour of tunnel that structural forces in concrete lining will grow in consider with time pass and after 70 years can cause instability in creepy rock masses section of tunnel. To show the importance of time-dependent behavior consideration of rocks, elastic and Mohr-Coulomb models are evaluated at the end.

키워드

참고문헌

  1. Ali M., Aziz M., Hamza M. and Madni M. F. (2020), "Engineering properties of expansive soil treated with polypropylene fibers",
  2. Arora K., Gutierrez M., Hedaya A. and Xia C., (2021), "Tunnels in squeezing clay-rich rocks", Underground Space, 6, 432-445, https://doi.org/10.1016/j.undsp.2020.07.001.
  3. Barla G. (2002), Tunnelling Under Squeezing Rock Conditions, Department of Structural and Geotechnical Engineering, Politecnico di Torino, Torino, Italy.
  4. Barla, G. (1995), "Tunneling under squeezing rock conditions", Project no: 9708328160/1998, Politecnico di Torino, Turin, Italy.
  5. Basnet C.B. (2013), "Evaluation on the squeezing phenomenon at the headrace tunnel of Chameliya hydroelectric project", MSc thesis, Department of Geology and Mineral Resources Engineering, Norwegian University of Science and Technology (NTNU), Trondheim.
  6. Bonini, M. and Barla, G. (2012), "The Saint Martin La Porte access admit (Lyon-Turin Base Tunnel) revisited", Tunn. Undergr. Sp. Tech., 30, 38-54. https://doi.org/10.1016/j.tust.2012.02.004.
  7. Cao, C., Shi, C., Lei, M., Yang, W. and Liu, J. (2018), "Squeezing failure of tunnels: A case study", Tunn. Undergr. Sp. Tech., 77, 188-203. https://doi.org/10.1016/j.tust.2018.04.007.
  8. Feng, X. and Jimenez, R. (2015), "Predicting tunnel squeezing with incomplete data using Baysian network", Eng. Geol., 195, 214-224. https://doi.org/10.1016/j.enggeo.2015.06.017. Geomech. Eng., 22(3), 227-236, https://doi.org/10.12989/gae.2020.22.3.227
  9. Goodman R.E. (1989), Rock Mechanics, John Wiley & Sons, New York. NY, USA.
  10. Hu, B., Sharifzadeh, M., Feng, X.T., Talebi, R. and Lou, J.F. (2020), "Ground support performance in deep underground mine with large anisotropic deformation using calibrated numerical simulation (case of mine-H)", Geomech. Eng., 21(6), 551-564, https://doi.org/10.12989/gae.2020.21.6.551.
  11. Ingenior (2005), "Stress induced problems in Himalayan tunnels with special reference to squeezing", Ph.D. Dissertation, Norwegian University of Science and Technology, Trondheim.
  12. Jiang W., Zhang C., Xiao H., Luo S, Li Z. and Li X. (2021), "Preliminary study on microbially modified expansive soil of embankment", Geomech. Eng., 26(3), 301-310, https://doi.org/10.12989/gae.2021.26.3.301.
  13. Panthi, K.K. (2013), "Predicting tunnel squeezing: a discussion based on two tunnel projects", J. Water Energ. Environ., 12, 20-25. https://doi.org/10.3126/hn.v12i0.9027.
  14. Paraskevopouloua, C. and Diederichs, M. (2018), "Analysis of time-dependent deformation in tunnels using the Convergence Confinement Method", Tunn. Undergr. Sp. Tech., 71, 62-80 https://doi.org/10.1016/j.tust.2017.07.001.
  15. Sharifzadeh, M., Tarifard, A. and Moridi, M.A. (2013), "Time-dependent behavior of tunnel lining in weak rock mass based on displacement back analysis method", Tunn. Undergr. Sp. Tech., 38, 348-356. https://doi.org/10.1016/j.tust.2013.07.014.
  16. Singh, B. and Goel, R. (2006), Tunneling in Weak Rocks, 5, Elsevier Ltd, Oxford, Oxfordshire, United Kingdom.
  17. Wang, W., Ye, Y., Wang, Q., Luo, B., Wang, J. and Liu, Y. (2020), "Interaction and mechanical effect of materials interface of contact zone composite samples: Uniaxial compression experimental and numerical studies", Geomech. Eng., 21(6), 571-582. https://doi.org/10.12989/gae.2020.21.6.571.
  18. Wang, X., Iura, T., Jiang, Y., Wang, Z. and Liu, R. (2021), "Deformation and mechanical characteristics of tunneling in squeezing ground: A case study of the west section of the Tawarazaka Tunnel in Japan", Tunn. Undergr. Sp. Tech., 109, 103-697. https://doi.org/10.1016/j.tust.2020.103697.
  19. Wu, K., Shao, Z., Hong, S. and Qin, S. (2020), "Analytical solutions for mechanical response of circular tunnels with double primary linings in squeezing grounds", Geomech. Eng., 22(6), 509-518, https://doi.org/10.12989/gae.2020.22.6.509.
  20. Zhang, J.Z. and Zhou, X.P. (2017), "Time-dependent jamming mechanism for Single-Shield TBM tunneling in squeezing rock". Tunn. Undergr. Sp. Tech., 69, 209-222. https://doi.org/10.1016/j.tust.2017.06.020.
  21. Zhang, J.Z., Zhoua, X.P. and Yin, P. (2019), "Visco-plastic deformation analysis of rock tunnels based on fractional derivatives", Tunn. Undergr. Sp. Tech., 85, 209-219. https://doi.org/10.1016/j.tust.2018.12.019.
  22. Zhao, J., Feng, X.T., Zhang, X., Yang, C. and Zhou, Y. (2018), "Time-dependent behavior and modeling of Jinping marble under true triaxial compression", Int. J. Rock Mech. Min. Sci., 110, 218-230. https://doi.org/10.1016/j.ijrmms.2018.08.009.
  23. Zhu, W. and Zhao, J. (2004), Stability Analysis and Modelling of Underground Excavations in Fractured Rocks, Elsevier Ltd, Oxford, Oxfordshire, United Kingdom.