Advertisement

Centrifuge Investigation into the Effect of New Shield Tunneling on an Existing Overlying Large-Diameter Tunnel

  • Xiao-Guang Liu
  • Shou-Ji Du
  • Peng Li
Conference paper

Abstract

Two centrifuge model tests with different vertical clearances were carried out to investigate the new shield tunneling on an existing overlying large-diameter tunnel. The difference of the two centrifuge model tests lies in different vertical clearance between the two tunnels. Two construction steps of a new shield tunnel were simulated in the test. The vertical displacement and the longitudinal strain of the existing tunnel, as well as the pore water pressure at its invert and spring line, were measured. Results show that the vertical displacement and the longitudinal stress and the longitudinal differential settlement of the existing tunnel increase along with the vertical clearance of the two tunnel. The vertical displacement and the longitudinal stress of the existing tunnel and the pore water pressure increase because of the excavation while decrease as a result of grouting. The longitudinal differential settlement of the existing tunnel increases with the proceeding of the construction steps of a new shield tunnel.

Keywords

Shield tunneling Centrifuge model test Vertical clearance Pore water pressure Differential settlement 

References

  1. 1.
    Li, X.G., Yuan, D.J.: Response of a double-decked metro tunnel to shield driving of twin closely undercrossing tunnels. Tunn. Undergr. Space Technol. 28, 18–30 (2012)CrossRefGoogle Scholar
  2. 2.
    Marshall, A.M., Klar, A., Mair, R.J.: Tunneling beneath buried pipes: view of soil strain and its effect on pipeline behavior. J. Geotech. Geoenviron. Eng. 136(12), 1664–1672 (2010)CrossRefGoogle Scholar
  3. 3.
    Shen, S.L., Wu, H.N., Cui, Y.J., Yin, Z.Y.: Long-term settlement behavior of the metro tunnel in Shanghai. Tunn. Undergr. Space Technol. 40, 309–323 (2014)CrossRefGoogle Scholar
  4. 4.
    Zhang, J.F., Chen, J.J., Wang, J.H., Zhu, Y.F.: Prediction of tunnel displacement induced by adjacent excavation in soft soil. Tunn. Undergr. Space Technol. 36, 24–33 (2013)CrossRefGoogle Scholar
  5. 5.
    Li, P., Du, S.J.: Responses of cross-river tunnel due to overlying shield tunnel construction (I): Influence of construction procedure. In: Proceedings of the International Conference on Pipelines and Trenchless Technology, pp. 1585–1594. ASCE, United States (2012)Google Scholar
  6. 6.
    Li, P., Du, S.J.: Responses of cross-river tunnel due to overlying shield tunnel construction (I): Influence of distance. In: Proceedings of the International Conference on Pipelines and Trenchless Technology, pp. 1595–1605. ASCE, United States (2012)Google Scholar
  7. 7.
    Ng, C.W.W., Lu, H., Peng, S.Y.: Three-dimensional centrifuge modelling of the effects of twin tunneling on an existing pile. Tunn. Undergr. Space Technol. 35, 189–199 (2013)CrossRefGoogle Scholar
  8. 8.
    Li, P., Du, S.J.: Centrifuge investigation into the effect of new shield tunneling on an existing underlying large-diameter tunnel. Tunn. Undergr. Space Technol. 42, 59–66 (2014)CrossRefGoogle Scholar
  9. 9.
    Liao, S.M., Liu, J.H., Wang, R.L., Li, Z.M.: Shield tunneling and environment protection in Shanghai soft ground. Tunn. Undergr. Space Technol. 24(4), 454–465 (2009)CrossRefGoogle Scholar
  10. 10.
    Liao, S.M., Peng, F.L., Shen, S.L.: Analysis of shearing effect on tunnel induced by load transfer along longitudinal direction. Tunn. Undergr. Space Technol. 23(4), 421–430 (2008)CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Department of Civil EngineeringShanghai Jiao Tong UniversityShanghaiChina
  2. 2.Electric Power Planning & Engineering InstituteBeijingChina

Personalised recommendations