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Mechanisms of large deformation in soft rock tunnels: a case study of Huangjiazhai Tunnel

  • Kang BianEmail author
  • Jian Liu
  • Zhenping Liu
  • Shangge Liu
  • Fei Ai
  • Xiaoqing Zheng
  • Shaohu Ni
  • Wei Zhang
Original Paper
  • 193 Downloads

Abstract

Typical large-deformation phenomena of soft rock occurred frequently during the tunneling process in Huangjiazhai Tunnel, Hubei Province, China, including extrusion at the tunnel wall and severe damage of the primary support and secondary lining. To reveal the mechanisms of these anomalies, comprehensive investigations have been undertaken combining engineering, laboratory, and microscopic analyses. Since the monitoring results show that there might be a close relationship between the large deformation phenomena and water infiltration into the tunnel, the water–rock interaction is the research focus in the investigations. The experimental results reveal that the deforming resistance and strength of shales exposed at the excavation face weaken quickly in the first 20 days after the shales have contact with water. The results obtained by mineral composition detection and microstructure observation illustrate the microscopic reasons for the decreasing strength and deforming resistance of the tunnel surrounding rock after water infiltration. The results from in situ geostress tests indicate that as a result of high tectonic stress and low rock strength, the field of Huangjiazhai Tunnel is an extremely high geostress area. By combining analyses from the mechanical and geological perspectives, there are two main reasons for the large deformations in the Huangjiazhai Tunnel: the plastic flow caused by tunnel excavation under high geostress and low rock strength and a hydrated-mechanical coupling process between the shales and water.

Keywords

Large deformation Soft rock tunnels Immersion time Microstructure Hydrated-mechanical coupling 

Notes

Acknowledgements

The authors gratefully acknowledge the support by the National Key Research and Development Program of China (Grant No. 2016YFC0401802), the State Key Program of National Natural Science of China (Grant No. 51539002), the National Natural Science Foundation of China (Nos. 51209198, 51204158, and 51409265), and the Natural Science Foundation of Zhejiang Province (Grant No. LY13E090003).

References

  1. Agan C (2016) Prediction of squeezing potential of rock masses around the Suruc water tunnel. Bull Eng Geol Environ 75:451–468CrossRefGoogle Scholar
  2. Aksoy CO, Ogul K, Topal I, Ozer SC, Ozacar V, Posluk E (2012) Numerical modeling of non-deformable support in swelling and squeezing rock. Int J Rock Mech Min Sci 52:61–70CrossRefGoogle Scholar
  3. Alm O (1982) The effect of water on the mechanical properties and microstructures of granitic rock at high pressure and high temperature. Proceedings of the 23rd Symposium on Rock Mechanics, University of California, Berkeley, California, August 25-27. New York: Society of Mining Engineers of the American Institute of Mining, Metallurgical and Petroleum Engineers, pp. 261–269Google Scholar
  4. Anagnostou G (1993) A model for swelling rock in tunnelling. Rock Mech Rock Eng 26(4):307–331CrossRefGoogle Scholar
  5. Aydan O, Dalgic S (1998) Prediction of deformation behavior of 3 lanes Bolu tunnels through squeezing rocks of North Anotolian Fault Zone (NAFZ). Proceedings of the Regional Symposium on Sedimentary Rock Engineering, Taipei, pp. 228–233.Google Scholar
  6. Aydan O, Akagi T, Kawamoto T (1993) The squeezing potential of rocks around tunnels: theory and prediction. Rock Mech Rock Eng 26(2):137–163CrossRefGoogle Scholar
  7. Aydan O, Akagi T, Ito T, Ito J, Sato J (1995) Prediction of deformation behaviour of a tunnel in squeezing rock with time dependent characteristics. In: Proceedings of numerical models in geomechanics NUMOG V, pp. 463–469Google Scholar
  8. Aydan O, Akagi T, Kawamoto T (1996) The squeezing potential of rock around tunnels: theory and prediction with examples taken from Japan. Rock Mech Rock Eng 29:125–143CrossRefGoogle Scholar
  9. Barla G (1995) Squeezing rocks in tunnels. ISRM News J II(3–4):44–49Google Scholar
  10. Barla G, Bonini M, Semeraro M (2011) Analysis of the behaviour of a yield-control support system in squeezing rock. Tunn Undergr Space Technol 26:146–154CrossRefGoogle Scholar
  11. Bieniawski ZT (1974) Geomechanics classification of rock masses and its application in tunneling. Proceedings of the Third International Congress on Rock Mechanics, Vol. 11A. Denver: International Society of Rock Mechanics, pp. 27–32Google Scholar
  12. Bieniawski ZT (1989) Engineering rock mass classifications. Wiley, New York, p 251Google Scholar
  13. Bizjak KF, Petkovsek B (2004) Displacement analysis of tunnel support in soft rock around a shallow highway tunnel at Golovec. Eng Geol 75:89–106CrossRefGoogle Scholar
  14. Brox D, Hagedorn H (1999) Extreme deformation and damage during the construction of large tunnels. Tunn Undergr Space Technol 14(1):23–28CrossRefGoogle Scholar
  15. Cantieni L, Anagnostou G (2009) The interaction between yielding supports and squeezing ground. Tunn Undergr Space Technol 24:309–322CrossRefGoogle Scholar
  16. Dalgic S (2002) Tunneling in squeezing rock, the Bolu tunnel, Anatolian motorway, Turkey. Eng Geol 67:73–96CrossRefGoogle Scholar
  17. Duda M, Renner J (2012) The weakening effect of water on the brittle failure strength of sandstone. Geophys J Int 192(3):1091–1108CrossRefGoogle Scholar
  18. Duncan FME (1993) Numerical modeling of yield zones in weak rocks.In comprehensive rock engineering. Rock Mech Min Sci 36(6):777–809Google Scholar
  19. Erguler ZA, Ulusay R (2009) Water-induced variations in mechanical properties of clay-bearing rocks. Int J Rock Mech Min Sci 46(2):355–370CrossRefGoogle Scholar
  20. GB/T 50266-2013 (2013) Standard for test methods of engineering rock mass, Beijing: China Planning PressGoogle Scholar
  21. GB/T 50218-2014 (2014) Standard for Engineering Classification of Rock Mass. Beijing: China Planning PressGoogle Scholar
  22. Gioda G, Cividini A (1996) Numerical methods for the analysis of tunnel performance in squeezing rocks. Rock Mech Rock Eng 29(4):171–193CrossRefGoogle Scholar
  23. Hadizadeh J, Law RD (1991) Water-weakening of sandstone and quartzite deformed atvarious stress and strain rates. Int J Rock Mech Min Sci Geomech Abstr 28(5):431–439CrossRefGoogle Scholar
  24. Haimson BC, Cornet FH (2003) ISRM suggested methods for rock stress estimation—part 3: hydraulic fracturing (HF) and/or hydraulic testing of pre-existing fractures (HTPF). Int J Rock Mech Min Sci 40(7–8):1011–1020CrossRefGoogle Scholar
  25. Hayashi K, Ito T (1993) In situ stress measurement by hydraulic fracturing at the Kamaishi mine. Int J Rock Mech Min Sci Geomech Abstr 30(7):951–957CrossRefGoogle Scholar
  26. Hisatake M, Ohno S, Katayama T, Ohmae Y (2012) Effects of the ring-cut method as a settlement deterrent in a soft ground tunnel. Tunn Undergr Space Technol 28:90–97CrossRefGoogle Scholar
  27. Hisatake M, Ohno S, Katayama T, Ohmae Y, Sano S (2009) Effects of the ring-cut excavation method on the restraint of displacements ahead of a tunnel face. Tunn Undergr Space Technol 24:547–554CrossRefGoogle Scholar
  28. Hsiao FY, Wang CL, Chern JC (2009) Numerical simulation of rock deformation for support design in tunnel intersection area. Tunn Undergr Space Technol 24:14–21CrossRefGoogle Scholar
  29. Hoek E (2001) Big tunnels in bad rock. J Geotech Geoenviron 127(9):726–740CrossRefGoogle Scholar
  30. Hoek E, Guevara R (2009) Overcoming squeezing in the Yacambu-Quibor tunnel, Venezuela. Rock Mech Rock Eng 42:389–418CrossRefGoogle Scholar
  31. Hoek E, Marinos P (2000) Predicting tunnel squeezing problems in weak heterogeneous rock masses. Tunnels Tunnelling Int 32(11):45–51Google Scholar
  32. Jiang Q, Jiang Y, Cui J, Feng X (2014) Application of computerized tomographic scanning to the study of water-induced weakening of mudstone. Bull Eng Geol Environ 73:1293–1301CrossRefGoogle Scholar
  33. Kalamaris GS, Bieniawski ZT (1995) A rock mass strength concept for coal incorporating the effect of time. Proceedings of the Eighth International Congress on Rock Mechanics. Vol. 1. Rotterdam: Balkema, pp. 295–302Google Scholar
  34. Kavvadas M (2005) Monitoring ground deformation in tunnelling: current practice in transportation tunnels. Eng Geol 79(1–2):93–113CrossRefGoogle Scholar
  35. Khanlari G, Meybodi RG, Mokhtari E (2012) Engineering geological study of the second part of water supply Karaj to Tehran tunnel with emphasis on squeezing problems. Engineering Geology 145–146(3): 9–17Google Scholar
  36. Kovfiri K, Staus J (1996) Basic considerations on tunnelling in squeezing ground. Rock Mech Rock Eng 29(4):203–210CrossRefGoogle Scholar
  37. Kuriyagawa M, Kobayashi H, Matsunaga I, Yamaguchi T, Hibiya K (1989) Application of hydraulic fracturing to three-dimensional in situ stress measurement. Int J Rock Mech Min Sci Geomech Abstr 26(6):587–593CrossRefGoogle Scholar
  38. Matsunaga I, Kuriyagawa M, Sasaki S (1989) In situ stress measurements by the hydraulic fracturing method at Imaichi pumped storage power plant, Tochigi, Japan. Int J Rock Mech Min Sci Geomech Abstr 26(3–4):203–209CrossRefGoogle Scholar
  39. Meng LB, Li TB, Jiang Y, Wang R, Li YR (2013) Characteristics and mechanisms of large deformation in the Zhegu mountain tunnel on the Sichuan-Tibet highway. Tunn Undergr Space Technol 37:157–164CrossRefGoogle Scholar
  40. Mezger F, Ramoni M, Anagnostou G (2017) Evaluation of higher capacity segmental lining systems when tunneling in squeezing rock. Tunn Undergr Space Technol 65:200–214CrossRefGoogle Scholar
  41. Nakano R (1979) Geotechnical properties of mudstone of neogene tertiary in Japan. Int Syrup Soil Mech Oaxaca 1:75–92Google Scholar
  42. Sheorey PR (1997) Empirical Rock Failure Criteria. Balkema, RotterdamGoogle Scholar
  43. Singh M, Singh B, Choudhari J (2007) Critical strain and squeezing of rock mass in tunnels. Tunn Undergr Space Technol 22:343–350CrossRefGoogle Scholar
  44. Steiner W (1996) Tunnelling in squeezing rocks: case histories. Rock Mech Rock Eng 29(4):211–246CrossRefGoogle Scholar
  45. Sterpi D, Gioda G (2009) Visco-plastic behaviour around advancing tunnels in squeezing rock. Rock Mech Rock Eng 42:319–339CrossRefGoogle Scholar
  46. Tan JK, Kang WF (1980) Locked in stresses, creep and dilatancy of rocks, and constitutive equations. Rock Mech 13:5–22CrossRefGoogle Scholar
  47. Teng HW, Ren S, Jiang DY, Yang CH (2010) Experimental study of mechanical properties of water-saturated weaken shale in Gonghe tunnel. Chin J Rock Mech Eng 29(S1):2657–2662Google Scholar
  48. Trueman R (1998) An evaluation of strata support techniques in dual life gateroads. Ph.D Thesis. University of Wales, CardiffGoogle Scholar
  49. Van Eeckhout EM (1976) The mechanisms of strength reduction due to moisture in coal mine shales. Int J Rock Mech Min Sci Geomech Abstr 13(2):A22Google Scholar
  50. Walton G, Delaloye D, Diederichs MS (2014) Development of an elliptical fitting algorithm to improve change detection capabilities with applications for deformation monitoring in circular tunnels and shafts. Tunn Undergr Space Technol 43:336–349CrossRefGoogle Scholar
  51. Wang MY, Zhang N, Li J, Ma LJ, Fan PX (2015) Computational method of large deformation and its application in deep mining tunnel. Tunn Undergr Space Technol 50:47–53CrossRefGoogle Scholar
  52. Wood AM (1972) Tunnels for road and motorways. Q J Eng Geol 5:119–120CrossRefGoogle Scholar
  53. Yang TH, Xu T, Liu HY (2014) Rheological characteristics of weak rock mass and effects on the long-term stability of slopes. Rock Mech Rock Eng 47:2253–2263CrossRefGoogle Scholar
  54. Yassaghia A, Salari-Rad H (2005) Squeezing rock conditions at an igneous contact zone in the Taloun tunnels, Tehran-Shomal freeway, Iran: a case study. Int J Rock Mech Min Sci 42:95–108CrossRefGoogle Scholar
  55. Yilmaz I (2010) Influence of water content on the strength and deformability of gypsum. Int J Rock Mech Min Sci 47(2):342–347CrossRefGoogle Scholar
  56. Zhu JB, Wang B, Yang HP, Hu JM (2007) Experimental study on rheological mechanical properties of shale under unloading condition. Chin J Rock Mech Eng 26(Supp.2):4552–4556Google Scholar
  57. Zhu XJ (1996) Characteristics of soft rocks interacting with water. Scientific Technol Min 4(3):46–50Google Scholar

Copyright information

© Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  • Kang Bian
    • 1
    Email author
  • Jian Liu
    • 1
  • Zhenping Liu
    • 1
  • Shangge Liu
    • 1
  • Fei Ai
    • 1
  • Xiaoqing Zheng
    • 1
  • Shaohu Ni
    • 2
  • Wei Zhang
    • 3
  1. 1.State Key Laboratory of Geomechanics and Geotechnical EngineeringInstitute of Rock and Soil Mechanics, Chinese Academy of ScienceWuhanChina
  2. 2.Power China Huadong Engineering Corporation LimitedZhejiangChina
  3. 3.College of Water Conservancy and Civil EngineeringSouth China Agricultural UniversityGuangzhouChina

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