Skip to main content
Log in

Model test for dynamic construction mechanical effect of large-span loess tunnel

  • Published:
Journal of Shanghai Jiaotong University (Science) Aims and scope Submit manuscript

Abstract

It has been a focus of debate for a large time on construction methods for large-span loess tunnel. Reasonable construction method has much effect on stability of tunnel and construction schedule. Deformation and failure of surrounding rock are quite complex. Associating with the large-span loess tunnel of Zhengzhou—Xi’an high-speed passenger rail line in China, large scale model test with geometric proportion 1:20 is applied to study on dynamic mechanical behavior of various construction methods. They include full-face excavation with support and no support, and benching method with support. It is found that pre-deformation and stress accumulation take place ahead of working face. The effects of three construction methods are further studied, particularly in terms of tunnel displacement and stress changes. It is revealed that benching method transfers load to an unexcavated area, limits horizontal deformation, reduces stress concentration effectively, lengthens the distance between location of peak for stress concentration and working face, and consequently increases stability. The model test results not only supply theoretical foundation for determination of reasonable construction method, but also can act as reference for similar tunnel and underground engineering construction.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Bizjak K F, Petkovek B. Displacement analysis of tunnel support in soft rock around a shallow highway tunnel at Golovec [J]. Engineering Geology, 2004, 75(1): 89–106.

    Article  Google Scholar 

  2. Funatsu T, Hoshino T, Sawae H, et al. Numerical analysis to better understand the mechanism of the effects of ground supports and reinforcements on the stability of tunnels using the distinct element method [J]. Tunnelling and Underground Space Technology, 2008, 23(5): 561–573.

    Article  Google Scholar 

  3. Sung O C, Shin H-S. Stability analysis of a tunnel excavated in a weak rock mass and the optimal supporting system design [J]. International Journal of Rock Mechanics and Mining Sciences, 2004, 41(3): 876–881.

    Google Scholar 

  4. Shi Chun-xiang, Guo Zhong-yin. Mechanical properties of asphalt pavement structure in highway tunnel [J]. Journal of Shanghai Jiaotong University(Science), 2008, 13(2): 206–210.

    Article  Google Scholar 

  5. Jia Jian, Wang Jian-hua, Lou Xiao-ming, et al. The settlement characteristic of underground urban complex in Shanghai [J]. Journal of Shanghai Jiaotong University(Science), 2009, 14(3): 365–370.

    Article  Google Scholar 

  6. Zhang S M, Zhu Y Q, Zhao Y C, et al. Comparative analysis of limit displacements for tunnels at the unlined and primary support stages [J]. International Journal of Rock Mechanics and Mining Sciences, 2004, 41(3): 774–779.

    Article  Google Scholar 

  7. Kwangho Y, Yeonjun P, Jun S, et al. Risk analysis for determination of a tunnel support pattern [J]. Tunnelling and Underground Space Technology, 2005, 20(5): 479–486.

    Article  Google Scholar 

  8. Yang Jian-ping, Chen Wei-zhong, Guo Xiao-hong. Effect of supporting time on stability of small spacing roadway tunnel [J]. Rock and Soil Mechanics, 2008, 29(2): 483–490 (in Chinese).

    Google Scholar 

  9. Ding Yong-chun, Wang Jian-hua, Xu Zhong-hua, et al. Deformation characteristics of deep excavations for metro stations in Shanghai soft soil deposits [J]. Journal of Shanghai Jiaotong University, 2008, 42(11): 1871–1875 (in Chinese).

    Google Scholar 

  10. Tzamos S, Sofianos A I. Extending the Q system’s prediction of support in tunnels employing fuzzy logic and extra parameters [J]. International Journal of Rock Mechanics and Mining Sciences, 2006, 43(6): 938–949.

    Article  Google Scholar 

  11. Huang Hong-wei, Xu Ling. Study on deformation and internal force of supporting rocks and initial support in DaFeng YaKou rock tunnel [J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(1): 44–55(in Chinese).

    Google Scholar 

  12. Dodson M M. Darwin’s law of natural selection and Thom’s theory of catastrophes [J]. Mathematical Biosciences, 1976, 28(3): 243–274.

    Article  MATH  MathSciNet  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Ben-guo He  (何本国).

Additional information

Foundation item: the National Natural Science Foundation of China(Nos. 50978172 and 51078318), and the New Century Excellent Talents in University (No. 10-0667)

Rights and permissions

Reprints and permissions

About this article

Cite this article

He, Bg., Zhu, Yq., Ye, Cl. et al. Model test for dynamic construction mechanical effect of large-span loess tunnel. J. Shanghai Jiaotong Univ. (Sci.) 16, 112–117 (2011). https://doi.org/10.1007/s12204-011-1103-x

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12204-011-1103-x

Key words

CLC number

Navigation