Geomechanics and Engineering

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Field test and numerical study of the effect of shield tail-grouting parameters on surface settlement

  • Shao, Xiaokang (School of Mechanics and Civil Engineering, China University of Mining and Technology-Beijing) ;
  • Yang, Zhiyong (School of Mechanics and Civil Engineering, China University of Mining and Technology-Beijing) ;
  • Jiang, Yusheng (School of Mechanics and Civil Engineering, China University of Mining and Technology-Beijing) ;
  • Yang, Xing (School of Mechanics and Civil Engineering, China University of Mining and Technology-Beijing) ;
  • Qi, Weiqiang (School of Mechanics and Civil Engineering, China University of Mining and Technology-Beijing)
  • Received : 2022.01.31
  • Accepted : 2022.04.26
  • Published : 2022.06.10
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Abstract

Tail-grouting is an effective measure in shield engineering for filling the gap at the shield tail to reduce ground deformation. However, the gap-filling ratio affects the value of the gap parameters, leading to different surface settlements. It is impossible to adjust the fill ratio indiscriminately to study its effect, because the allowable adjustment range of the grouting quantity is limited to ensure construction site safety. In this study, taking the shield tunnel section between Chaoyanggang Station and Shilihe Station of Beijing Metro Line 17 as an example, the correlation between the tail-grouting parameter and the surface settlement is investigated and the optimal grouting quantity is evaluated. This site is suitable for conducting field tests to reduce the tail-grouting quantity of shield tunneling over a large range. In addition, the shield tunneling under different grouting parameters was simulated. Furthermore, we analyzed the evolution law of the surface settlement under different grouting parameters and obtained the difference in the settlement parameters for each construction stage. The results obtained indicate that the characteristics of the grout affect the development of the surface settlement. Therefore, reducing the setting time or increasing the initial strength of the grout could effectively suppress the development of surface subsidence. As the fill ratio decreases, the loose zone of the soil above the tunnel expands, and the soil deformation is easily transmitted to the surface. Meanwhile, owing to insufficient grout support, the lateral pressure on the tunnel segments is significantly reduced, and the segment moves considerably after being removed from the shield tail.

Keywords

Acknowledgement

This study was financially supported by the National Natural Science Foundation of China (Grant No. U1261212). The first and corresponding authors would also like to acknowledge the support provided by the China Railway 12th Bureau Group.

References

  1. Chen, R., Chen, S., Wu, H., Liu, Y. and Meng, F. (2020), "Investigation on deformation behavior and failure mechanism of a segmental ring in shield tunnels based on elaborate numerical simulation", Eng. Fail. Anal., 117, 104960. https://doi.org/10.1016/j.engfailanal.2020.104960.
  2. Cheng, H., Chen, J. and Chen, G. (2019), "Analysis of ground surface settlement induced by a large EPB shield tunnelling: a case study in Beijing, China", Environ. Earth Sci., 78(20), 1-18. https://doi.org/10.1007/s12665-019-8620-6.
  3. Ding, W., Duan, C., Zhu, Y., Zhao, T., Huang, D. and Li, P. (2019), "The behavior of synchronous grouting in a quasi-rectangular shield tunnel based on a large visualized model test", Tunn. Undergr. Sp. Tech., 83, 409-424. https://doi.org/10.1016/j.tust.2018.10.006.
  4. Do, N.A., Dias, D., Oreste, P. and Irini, D.M. (2014), "Three-dimensional numerical simulation for mechanized tunnelling in soft ground: the influence of the joint pattern", Acta Geotech., 9(4), 673-694. https://doi.org/10.1007/s11440-013-0279-7.
  5. Han, C., Wei, J., Zhang, W., Zhou, W., Yin, H., Xie, D., Yang, F., Li, X. and Man, X. (2021), "Numerical investigation of grout diffusion accounting for the dynamic pressure boundary condition and spatiotemporal variation in slurry viscosity", Int. J. Geomech., 21(4), 04021018. https://orcid.org/10.1061/(ASCE)GM.1943-5622.0001945.
  6. Hunan, U., Tianjin, U., Tongji, U. and Southeast, U., (2011), "Architecture Material", China Architecture & Building Press.
  7. Jiang, H., Cheng, J.G., Zhang J.X., Zhang, J.L., Su, Y.R. and Zheng Y.F. (2021), "Principle and application of in-situ monitoring system for ground displacement induced by shield tunnelling", Tunn. Undergr. Sp. Tech., 112(13-20), 103905. https://doi.org/10.1016/j.tust.2021.103905.
  8. Kasper, T. and Meschke, G. (2006), "A numerical study of the effect of soil and grout material properties and cover depth in shield tunnelling", Comput. Geotech., 33(4-5), 234-247. https://doi.org/10.1016/j.compgeo.2006.04.004.
  9. Kavvadas, M., Litsas, D., Vazaios, I. and Fortsakis, P. (2017), "Development of a 3D finite element model for shield EPB tunnelling", Tunn. Undergr. Sp. Tech., 65, 22-34. https://doi.org/10.1016/j.tust.2017.02.001.
  10. Kim, D. and Park, K. (2017), "Evaluation of the grouting in the sandy ground using bio injection material", Geomech. Eng., 12(5), 739-752. https://doi.org/10.12989/gae.2017.12.5.739.
  11. Lambrughi, A., Rodriguez, L.M. and Castellanza, R. (2012), "Development and validation of a 3D numerical model for TBM-EPB mechanised excavations", Comput. Geotech., 40, 97-113. https://doi.org/10.1016/j.compgeo.2011.10.004.
  12. Lavasan, A.A., Zhao, C., Barciaga, T., Schaufler, A., Steeb, H. and Schanz, T. (2018), "Numerical investigation of tunneling in saturated soil: the role of construction and operation periods", Acta Geotech., 13(3), 671-691. https://doi.org/10.1007/s11440-017-0595-4.
  13. Li, C. (2020), "Simplified algorithm for grouting pressure and grouting quantity in shield construction", Int. J. Civ. Eng., 18(4), 419-428. https://doi.org/10.1007/s40999-019-00476-5.
  14. Li, P., Zhang, Q., Zhang, X., Li, S., Li, X. and Zuo, J. (2017), "Grouting diffusion characteristics in faults considering the interaction of multiple grouting", Int. J. Geomech., 17(5), 04016117. https://orcid.org/10.1061/(ASCE)GM.1943-5622.0000815.
  15. Liu, B., Sang, H., Liu, Q., Kang, Y., Pan, Y., Lu, C. and Zhang, C. (2020), "New algorithm for simulating grout diffusion and migration in fractured rock masses", Int. J. Geomech., 20(3), 04019188. https://orcid.org/10.1061/(ASCE)GM.1943-5622.0001537.
  16. Liu, B., Sang, H., Liu, Q., Liu, H., Pan, Y. and Kang, Y. (2021), "Laboratory Study on Diffusion and Migration of Grout in Rock Mass Fracture Network", Int. J. Geomech., 21(1), 04020242. https://orcid.org/10.1061/(ASCE)GM.1943-5622.0001901.
  17. Liu, C., Li, J., Zhang, Z., Li, P., Cui, J., Liu, H. and Yang, Y. (2020), "Model tests on tail-grouting process during URUP shield tunneling in soft soil", Tunn. Undergr. Sp. Tech., 103, 103451. https://doi.org/10.1016/j.tust.2020.103451.
  18. Lo, K. and Rowe, R. (1982), Prediction of ground subsidence due to tunnelling in clays, University of Western Ontario.
  19. Lv, J., Li, X., Li, Z. and Fu, H. (2020), "Numerical simulations of construction of shield tunnel with small clearance to adjacent tunnel without and with isolation pile reinforcement", KSCE J. Civ. Eng., 24(1), 295-309. https://doi.org/10.1007/s12205-020-1167-y.
  20. Meschke, G. (1996), "Consideration of aging of shotcrete in the context of a 3-D viscoplastic material model", Int. J. Numer. Meth. Eng., 39(18), 3123-3143. https://doi.org/10.1002/(SICI)1097-0207(19960930)39:18<3123::AID-NME993>3.0.CO;2-R
  21. Meschke, G., Kropik, C. and Mang, H. (1996), "Numerical analyses of tunnel linings by means of a viscoplastic material model for shotcrete", Int. J. Numer. Meth. Eng., 39(18), 3145-3162. https://doi.org/10.1002/(SICI)1097-0207(19960930)39:18<3145::AID-NME992>3.0.CO;2-M
  22. Mroueh, H. and Shahrour, I. (2008), "A simplified 3D model for tunnel construction using tunnel boring machines", Tunn. Undergr. Sp. Tech., 23(1), 38-45. https://doi.org/10.1016/j.tust.2006.11.008.
  23. Oreste, P., Sebastiani, D., Spagnoli, G. and Lillis, A. D. (2021), "Analysis of the behavior of the two-component grout around a tunnel segmental lining on the basis of experimental results and analytical approaches", Transp. Geotech., https://doi.org/10.1016/j.trgeo.2021.100570.
  24. Peck, R.B. (1969), "Deep excavations and tunnelling in soft ground", proc.int.conf.on smfe.
  25. Rezaei, A.H. and Ahmadi-adli, M. (2020), "The volume loss: real estimation and its effect on surface settlements due to excavation of Tabriz Metro tunnel", Geotech. Geol. Eng., 38(3), 2663-2684. https://doi.org/10.1007/s10706-019-01177-5
  26. Rowe, R. and Kack, G. (1983), "A theoretical examination of the settlements induced by tunnelling: four case histories", Can. Geotech. J., 20(2), 299-314. https://doi.org/10.1139/t83-033
  27. Shah, R., A. Lavasan, A., Peila, D., Todaro, C., Luciani, A. and Schanz, T. (2018), "Numerical study on backfilling the tail void using a two-component grout", J. Mater. Civ. Eng., 30(3), 04018003. https://doi.org/10.1061/(ASCE)MT.1943-5533.0002175.
  28. Sjolander, A., Hellgren, R., Malm, R. and Ansell, A. (2020), "Verification of failure mechanisms and design philosophy for a bolt-anchored and fibre-reinforced shotcrete lining", Eng. Fail. Anal., 116, 104741. https://doi.org/10.1016/j.engfailanal.2020.104741.
  29. Swoboda, G., Kenawi, M. and Ramadan, E. (2004), "Numerical investigation of TBM tunnelling in consolidated clay", Proc., Underground space for sustainable urban development. Proceedings of the 30th ita-aites world tunnel congress., Tunnelling and Underground Space Technology.
  30. Wang, S., Liu, C., Shao, Z., Ma, G. and He, C. (2020), "Experimental study on damage evolution characteristics of segment structure of shield tunnel with cracks based on acoustic emission information", Eng. Fail. Anal., 118, 104899. https://doi.org/10.1016/j.engfailanal.2020.104899.
  31. Xu, X.H., Xiang, Z.C., Zou, J.F. and Wang, F. (2020), "An improved approach to evaluate the compaction compensation grouting efficiency in sandy soils", Geomech. Eng., 20(4), 313-322. https://doi.org/10.12989/gae.2020.20.4.313.
  32. Yu, Q., Zhou, H., Wang, Y. and Duan, R. (2016), "Quality monitoring of metro grouting behind segment using ground penetrating radar", Constr. Build. Mater., 110, 189-200. https://doi.org/10.1016/j.conbuildmat.2015.12.109.
  33. Zhang, D., Xie, X., Zhou, M., Huang, Z. and Zhang, D. (2021), "An incident of water and soil gushing in a metro tunnel due to high water pressure in sandy silt", Eng. Fail. Anal., 121, 105196. https://doi.org/10.1016/j.engfailanal.2020.105196.
  34. Zhang, F., Xie, X. and Huang, H. (2010), "Application of ground penetrating radar in grouting evaluation for shield tunnel construction", Tunn. Undergr. Sp. Tech., 25(2), 99-107. https://doi.org/10.1016/j.tust.2009.09.006.
  35. Zhang, J., Li, S., Li, L., Zhang, Q., Xu, Z., Wu, J. and He, P. (2017), "Grouting effects evaluation of water-rich faults and its engineering application in Qingdao Jiaozhou Bay Subsea Tunnel, China", Geomech. Eng., 12(1), 35-52. https://doi.org/10.12989/gae.2017.12.1.035.
  36. Zhao, K., Bonini, M., Debernardi, D., Janutolo, M., Barla, G. and Chen, G. (2015), "Computational modelling of the mechanised excavation of deep tunnels in weak rock", Comput. Geotech., 66, 158-171. 10.1016/j.compgeo.2015.01.020.
  37. Zhao, T., Ding, W., Qiao, Y. and Duan, C. (2019), "A large-scale synchronous grouting test for a quasi-rectangular shield tunnel: Observation, analysis and interpretation", Tunn. Undergr. Sp. Tech., 91, 103018. https://doi.org/10.1016/j.tust.2019.103018.