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Ground Surface Deformation Analysis of Quasi Rectangular EPB Shield Tunneling

Conference paper

Abstract

The first quasi rectangular shield tunnel in China was developed during the construction of Ningbo Metro Line 3. Based on the Mindlin solution, this paper presents the computerized outcome of the ground surface deformation caused by the following three factors: the horizontal excess pressure at the excavation face, the friction between the shield skin and soil, and the grouting force outside the tailskin. The result shows: (1) Superposition of these three factors causes large surface heave near the tunneling area, with a maximum of 15 mm; (2) Grouting force plays an absolutely dominant role in ground surface deformation, which can cause a maximum 19 mm ground heave; (3) However, the total ground surface deformation induced by these three factors remains controllable. This study can be used for disturbance-control of future quasi rectangular shield tunneling.

Keywords

Surface deformation Quasi rectangular shield Excess pressure Friction Grouting pressure 

References

  1. 1.
    Kashima, Y.: Development and application of the DPLEX shield method: results of experiments using shield and segment models and application of the method in tunnel construction. Tunn. Undergr. Space Technol. 11(11), 45–50 (1996)CrossRefGoogle Scholar
  2. 2.
    Zhou, W.: Construction technique of DOT shield. Modern Tunn. Technol. 04, 22–32 (2004)Google Scholar
  3. 3.
    Zhang, D.: Additional stress analysis of subway shield tunneling. Undergr. Space 19(5), 379–382 (1999)Google Scholar
  4. 4.
    Sun, T.: Analysis of additional stresses of soil disturbance induced by propulsion of double-O-tube shield. Rock Soil Mech. 19(8), 2246–2251 (2008)Google Scholar
  5. 5.
    Lin, C.: Influences of tunnel slope on shield tunnelling-induced heave and subsidence of ground surface. Chin. J. Geotech. Eng. 36(7), 1203–1212 (2014)Google Scholar
  6. 6.
    Wang, H.: Effect of cutterhead compressing the front soil and influence of head aperture ratio on contact pressure of EPB shield to the front soil. China Civil Eng. J. 42(7), 113–118 (2009)Google Scholar
  7. 7.
    Yang, M., et al.: An approach for a single pile in layered soil. J. Tongji Univ. 04, 421–428 (1992)Google Scholar
  8. 8.
    Qi, J.: Analysis of superimposed stress of surrounding soil due to shield tunneling. Rock Soil Mech. 29(2), 528–529 (2008)Google Scholar
  9. 9.
    Liang, R., et al.: Analysis of ground surface displacement and horizontal movement of deep soils induced by shield advancing. Chin. J. Rock Mech. Eng. 34(3), 583–593 (2015)Google Scholar
  10. 10.
    Potyondy, J.: Skin friction between various soils and construction materials. Geotechnique 11(4), 339–353 (1961)CrossRefGoogle Scholar
  11. 11.
    Fu, D.: Technical development and application of rectangular shield tunnelling in china. Shanghai Constr. Sci. Technol. 02, 4–5 (2008)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Tongji UniversityShanghaiChina

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