Geomechanics and Engineering

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

The influence of tunnelling on the behaviour of pre-existing piled foundations in weathered soil

  • Lee, Cheol-Ju (Department of Civil Engineering, Kangwon National University) ;
  • Jeon, Young-Jin (Department of Civil Engineering, Kangwon National University) ;
  • Kim, Sung-Hee (Department of Civil Engineering, Kangwon National University) ;
  • Park, Inn-Joon (Department of Civil Engineering, Hanseo University)
  • Received : 2016.03.15
  • Accepted : 2016.06.03
  • Published : 2016.10.25
⟨ Previous Next ⟩

Abstract

A series of three-dimensional (3D) parametric finite element analyses have been performed to study the influence of the relative locations of pile tips with regards to the tunnel position on the behaviour of single piles and pile groups to adjacent tunnelling in weathered soil. When the pile tips are inside the influence zone, which considers the relative pile tip location with respect to the tunnel position, tunnelling-induced pile head settlements are larger than those computed from the Greenfield condition. However, when the pile tips are outside the influence zone, a reverse trend is obtained. When the pile tips are inside the influence zone, the tunnelling-induced tensile pile forces mobilised, but when the pile tips are outside the influence zone, compressive pile forces are induced because of tunnelling, depending on the shear stress transfer mechanism at the pile-soil interface. For piles connected to a cap, tensile and compressive forces are mobilised at the top of the centre and side piles, respectively. It has been shown that the increases in the tunnelling-induced pile head settlements have resulted in reductions of the apparent factor of safety up to approximately 43% when the pile tips are inside the influence zone, therefore severely affecting the serviceability of the piles. The pile behaviour, when considering the location of the pile tips with regards to the tunnel, has been analysed in great detail by taking the tunnelling-induced pile head settlements, axial pile forces, apparent factor of safety of the piles and shear transfer mechanism into account.

Keywords

Acknowledgement

Supported by : Korea Agency for Infrastructure Technology Advancement

References

  1. Attewell, P.B., Yeates, J. and Selby, A.R. (1986), Soil Movements Induced by Tunnelling and Their Effects on Pipelines and Structures, Blackie and Son Ltd.
  2. Brinkgreve, R.B.J., Kumarswamy, S. and Swolfs, W.M. (2015), Plaxis 3D 2015User's Manual, (Edited by R.B.J. Brinkgreve, S. Kumarswamy and W.M. Swolfs).
  3. Cheng, C.Y., Dasari, G.R., Chow, Y.K. and Leung, C.F. (2007), "Finite element analysis of tunnel-soil-pile interaction using displacement controlled model", Tunn. Undergr. Space Technol., 22(4), 450-466. https://doi.org/10.1016/j.tust.2006.08.002
  4. Davisson, M.T. (1972), "High capacity piles", Proceedings of Lecture Series in Innovations in Foundation Construction, ASCE, Illinois Section, pp. 81-112.
  5. Devriendt, M. and Williamson, M. (2011), "Validation of methods for assessing tunnelling-induced settlements on piles", Ground Eng., 25-30.
  6. Dias, T.G.S. and Bezuijen, A. (2014a), "Pile tunnel interaction: Literature review and data analysis", ITA World Tunnel Congress 2014, Iguassu Falls, Brazil, May, pp. 1-10
  7. Dias, T.G.S. and Bezuijen, A. (2014b), "Pile-tunnel interaction: A conceptual analysis", Proceedings of the 8th International Symposium on Geotechnical Aspects of Underground Construction in Soft Ground, CRC Press, Seoul, Korea, August, Volume 1, pp. 251-255.
  8. Fleming, W.G.K., Weltman, A.J., Randolph, W.F. and Elson, W.K. (1992), Piling Engineering, (2nd Edition), Blackie Academic & Professional.
  9. Hartono, E., Leung, C.F., Shen, R.F., Chow, Y.K., Ng, Y.S., Tan, H.T. and Hua, C.J. (2014), "Behaviour of pile above tunnel in clay", Phys. Model. Geotech., 833-838.
  10. Jacobsz, S.W. (2002), "The effects of tunnelling on piled foundations", Ph.D. Thesis; University of Cambridge, UK.
  11. Kaalberg, F.J., Teunissen, E.A.H., van Tol, A.F. and Bosch, J.W. (2005), "Dutch research on the impact of shield tunneling on pile foundations", Proceedings of the 5th International Conference of TC 28 of the ISSMGE, Geotechnical Aspects of Underground Construction in Soft Ground, London, UK, June, pp. 123-133.
  12. Lee, C.J. (2012), "Three-dimensional numerical analyses of the response of a single pile and pile groups to tunnelling in weak weathered rock", Tunn. Undergr. Space Technol., 32, 132-142. https://doi.org/10.1016/j.tust.2012.06.005
  13. Lee, C.J. (2013), "Numerical modelling of pile response to tunnelling in stiff clay", Comput. Geotech., 51, 116-127. https://doi.org/10.1016/j.compgeo.2013.02.007
  14. Lee, C.J. and Chiang, K.H. (2007), "Responses of single piles to tunneling-induced soil movements in sandy ground", Can. Geotech. J., 44(10), 1224-1241. https://doi.org/10.1139/T07-050
  15. Lee, G.T.K. and Ng, C.W.W. (2005), "The effects of advancing open face tunneling on an existing loaded pile", J. Geotech. Geoenviron. Eng., ASCE, 131(2), 193-201. https://doi.org/10.1061/(ASCE)1090-0241(2005)131:2(193)
  16. Lee, C.J, Lee, J.H. and Jeong, S.S. (2006), "The influence of negative skin friction on piles in groups connected to a cap", Geotechnique, 56(1), 53-56. https://doi.org/10.1680/geot.2006.56.1.53
  17. Lee, S.W., Choy, C.K.M., Cheang, W.W.L., Swolfs, W. and Brinkgreve. R. (2010), "Modelling of tunnelling beneath a building supported by friction bored piles", Proceedings of the 17th Southeast Asian Geotechnical Conference, Taipei, Taiwan, January, pp. 215-218.
  18. Liu, C., Zhang, Z. and Regueiro, R.A. (2014), "Pile and pile group response to tunnelling using a large diameter slurry shield - Case study in Shanghai", Comput. Geotech., 59, 21-43. https://doi.org/10.1016/j.compgeo.2014.03.006
  19. Mair, R.J. and Williamson, M.G. (2014), "The influence of tunnelling and deep excavation on piled foundations", Geotech. Aspect. Undergr. Construct. Soft Ground, 21-30.
  20. Marshall, A.M. (2009), "Tunnelling in sand and its effect on pipelines and piles", Ph.D. Thesis; University of Cambridge, UK.
  21. Marshall, A.M. and Haji, T. (2015), "An analytical study of tunnel-pile interaction", Tunn. Undergr. Space Technol., 45, 43-51. https://doi.org/10.1016/j.tust.2014.09.001
  22. Ng, C.W.W. and Lu, H. (2014), "Effects of the construction sequence of twin tunnels at different depths on an existing pile", Can. Geotech. J., 51(2), 173-183. https://doi.org/10.1139/cgj-2012-0452
  23. Ng, C.W.W., Lu, H. and Peng, S.Y. (2013), "Three-dimensional centrifuge modelling of twin tunnelling effects on an existing pile", Tunn. Undergr. Space Technol., 35, 189-199. https://doi.org/10.1016/j.tust.2012.07.008
  24. Ng, C.W.W., Soomro, M.A. and Hong, Y. (2014), "Three-dimensional centrifuge modelling of pile group responses to side-by-side twin tunnelling", Tunn. Undergr. Space Technol., 43, 350-361. https://doi.org/10.1016/j.tust.2014.05.002
  25. Ong, O.W., Leung, C.F., Yong, K.Y. and Chow, Y.K. (2006), "Pile responses due to tunneling in clay", Proceedings of the 6th International Conference on Physical Modelling in Geotechnics Physical Modelling in Geotechnics, London, UK, June, pp. 1177-1182.
  26. Pang, C.H. (2006), "The effects of tunnel construction on nearby pile foundation", Ph.D. Thesis; The National University of Singapore, Singapore.
  27. Selemetas, D. (2005), "The response of full-scale piles and piled structures to tunnelling", Ph.D. Thesis; University of Cambridge, UK.
  28. Williamson, M.G. (2014), "Tunnelling effects on bored piles in clay", Ph.D. Thesis; University of Cambridge, UK.

Cited by

  1. 터널근접시공에 의한 기 존재하는 인접말뚝의 거동에 지반보강이 미치는 영향에 대한 연구 vol.19, pp.3, 2017, https://doi.org/10.9711/ktaj.2017.19.3.389
  2. Effect of construction sequence on three-arch tunnel behavior-Numerical investigation vol.15, pp.3, 2016, https://doi.org/10.12989/gae.2018.15.3.911
  3. 막장압의 크기를 고려한 Shield TBM 터널 근접시공이 단독말뚝의 거동에 미치는 영향에 대한 연구 vol.20, pp.6, 2016, https://doi.org/10.9711/ktaj.2018.20.6.1003
  4. Effect of Tunnel Progress on the Settlement of Existing Piled Foundation vol.41, pp.2, 2019, https://doi.org/10.2478/sgem-2019-0008
  5. 3차원 유한요소해석을 통한 shield TBM 터널 근접시공에 의한 인접 단독말뚝의 거동에 대한 연구 vol.22, pp.1, 2016, https://doi.org/10.9711/ktaj.2020.22.1.023
  6. A set of failure variables for analyzing stability of slopes and tunnels vol.20, pp.3, 2016, https://doi.org/10.12989/gae.2020.20.3.175
  7. Dynamic interaction effects of buried structures on seismic response of surface structures vol.19, pp.1, 2016, https://doi.org/10.12989/eas.2020.19.1.1
  8. Influence of Tunnel Excavation on Tower Foundation Settlement Constructed on Sandy Soil vol.7, pp.4, 2020, https://doi.org/10.1007/s40515-020-00114-x
  9. Development of a mathematical model of the interaction of the knife actuator of geokhod with the semiconvex shape of the cutting edge of the knife with the mine faces rock vol.303, pp.None, 2016, https://doi.org/10.1051/e3sconf/202130301009
  10. Determination of the Overturning Torque of the Cutting Forces of the Knife Actuating Device of the Geokhod vol.315, pp.None, 2021, https://doi.org/10.1051/e3sconf/202131503020
  11. Evaluation of geological conditions and clogging of tunneling using machine learning vol.25, pp.1, 2016, https://doi.org/10.12989/gae.2021.25.1.059