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Performance of a compaction-grouted soil nail in laboratory tests

  • Xinyu Ye
  • Qiong Wang
  • Shanyong Wang
  • Scott Sloan
  • Daichao Sheng
Research Paper
  • 75 Downloads

Abstract

This study proposed a new soil nail known as the compaction-grouted soil nail, and a physical model was established to investigate its pull-out behaviour with different grouting pressures. The study on scale effect of the physical model was performed subsequently via numerical modelling. Additionally, interface shear tests were performed using the same boundary conditions as the physical model test. The strength parameters obtained were used to estimate the pull-out resistance of a conventional soil nail. The merits of these two soil nail types were compared based on their pull-out resistances. The physical model test results showed that the pull-out resistance of the compaction-grouted soil nail increases with increasing grouting pressure. In addition, the pull-out resistance exhibits hardening behaviour without a yield point, indicating that the compaction-grouted soil nail enables soils to remain stable against a relatively large deformation before ultimate failure. Furthermore, a higher grouting pressure results in a higher rate of increase for pull-out resistance versus pull-out displacement, which improves the performance of the compaction-grouted soil nail in the stabilization of large deformation problems. A comparison of the two types of soil nails suggests that the new compaction-grouted soil nail is more sensitive to grouting pressure than the conventional soil nail in terms of pull-out resistance improvement. In other words, the performance (pull-out resistance) of the compaction-grouted soil nail can be markedly improved by increasing the grouting pressure without inducing any accidental or undesired cracking or soil displacement.

Keywords

Compaction grouting Direct shear test Physical model test Pull-out resistance Soil nail 

Notes

Acknowledgements

The work described in this paper was partially supported by ARC Future Fellowship Grant FT140100019 and ARC Discovery Project Grant DP140100509. The authors are grateful for this financial support.

References

  1. 1.
    Ajalloeian R, Yu HS, Allman MA (1996) Physical and mechanical properties of Stockton Beach sand. In: Proceedings of the 7th Australia New Zealand conference on geomechanics: geomechanics in a changing world: conference proceedings, ACT: Institution of Engineers, Australia, pp 60–65Google Scholar
  2. 2.
    Bezuijen A, Tol AF (2012) Compensation grouting: mechanisms determining the shape of the grout body. In: Viggiani G (ed) Geotechnical aspects of underground construction in soft ground. Taylor and Francis Group, London, pp 861–868CrossRefGoogle Scholar
  3. 3.
    Chu LM (2003) Study on the interface shear strength of soil nailing in completely decomposed granite (CDG) soil. M.Phil. thesis, The Hong Kong Polytechnic University, Hong Kong, ChinaGoogle Scholar
  4. 4.
    Chu LM, Yin JH (2005) Comparison of interface shear strength of soil nails measured by both direct shear box tests and pull-out tests. J Geotech Geoenviron Eng ASCE 131(9):1097–1107CrossRefGoogle Scholar
  5. 5.
    Gurpersaud N, Vanapalli SK, Sivathalayan S (2010) Influence of suction on the pull-out capacity of grouted soil nails. Proceedings of the 63rd Canadian geotechnical conference, Calgary, AB, pp 1748–1755Google Scholar
  6. 6.
    Gurpersaud N, Vanapalli SK, Sivathalayan S (2013) Semiempirical method for estimation of pullout capacity of grouted soil nails in saturated and unsaturated soil environments. J Geotech Geoenviron Eng ASCE 139(11):1934–1943CrossRefGoogle Scholar
  7. 7.
    Hong YS, Wu CS, Yang SH (2003) Pull-out resistance of single and double nails in a model sandbox. Can Geotech J 40(5):1039–1047CrossRefGoogle Scholar
  8. 8.
    Hong CY, Yin JH, Pei HF, Zhou WH (2013) Experimental study on the pullout resistance of pressure-grouted soil nails in the field. Can Geotech J 50(7):693–704CrossRefGoogle Scholar
  9. 9.
    Hossain MA, Yin JH (2012) Influence of grouting pressure on the behavior of an unsaturated soil–cement interface. J Geotech Geoenviron Eng ASCE 138(2):193–202CrossRefGoogle Scholar
  10. 10.
    Hossain MA, Yin JH (2014) Behavior of a pressure–grouted soil–cement interface in direct shear tests. Int J Geomech ASCE 14(1):101–109CrossRefGoogle Scholar
  11. 11.
    Hossain MA, Yin JH (2015) Dilatancy and strength of an unsaturated soil-cement interface in direct shear tests. Int J Geomech ASCE 15(5):04014081CrossRefGoogle Scholar
  12. 12.
    Junaideen SM, Tham LG, Law KT, Lee CF, Yue ZQ (2004) Laboratory study of soil–nail interaction in loose, completely decomposed granite. Can Geotech J 41(2):274–286CrossRefGoogle Scholar
  13. 13.
    Li J, Tham LG, Junaideen SM, Yue ZQ, Lee CF (2007) Loose fill slope stabilization with soil nails: full-scale test. J Geotech Geoenviron Eng 134(3):277–288CrossRefGoogle Scholar
  14. 14.
    Lin PY, Liu JY (2017) Analysis of resistance factors for LFRD of soil nail walls against external stability failures. Acta Geotech 12(1):157–169CrossRefGoogle Scholar
  15. 15.
    Lin PY, Bathurst RJ, Javankhoshdel S, Liu JY (2017) Statistical analysis of the effective stress method and modifications for prediction of ultimate bond strength of soil nails. Acta Geotech 12(1):171–182CrossRefGoogle Scholar
  16. 16.
    Ng CWW, Zhou RZB (2005) Effects of soil suction on dilatancy of an unsaturated soil. In: Proceedings of the 16th international conference on soil mechanics and geotechnical engineering, Osaka, vol 2, pp 559–562Google Scholar
  17. 17.
    Powell GE, Watkins AT (1990) Improvement of marginally stable existing slopes by soil nailing in Hong Kong. In: Proceedings of the international reinforced soil conference, Glasgow, Scotland, pp 241–247Google Scholar
  18. 18.
    Pradhan B, Tham LG, Yue ZQ, Junaideen SM, Lee CF (2006) Soil–nail pullout interaction in loose fill materials. Int J Geomech ASCE 6(4):238–247CrossRefGoogle Scholar
  19. 19.
    Schlosser F (1982) Behaviour and design of soil nailing. In: Proceedings on recent developments in ground improvement techniques, Bangkok, pp 399–413Google Scholar
  20. 20.
    Schlosser F, Guilloux A (1981) Le frottement dans les sols. Rev Francaise Géotech 16:65–77CrossRefGoogle Scholar
  21. 21.
    Su LJ (2006) Laboratory pull-out testing on soil nails in compacted completely decomposed granite fill. Ph.D. thesis, The Hong Kong Polytechnic University, Hong KongGoogle Scholar
  22. 22.
    Su LJ, Chan TCF, Yin JH, Shiu YK, Chiu SL (2008) Influence of overburden pressure on soil nail pull-out resistance in a compacted fill. J Geotech Geoenviron Eng ASCE 134(9):1339–1347CrossRefGoogle Scholar
  23. 23.
    Su LJ, Yin JH, Zhou WH (2010) Influences of overburden pressure and soil dilation on soil nail pull-out resistance. Comput Geotech 37(4):555–564CrossRefGoogle Scholar
  24. 24.
    Vanapalli SK, Fredlund DG (2000) Comparison of different procedures to predict the unsaturated soil shear strength of unsaturated soils. Geo-Denver 2000, vol 99. ASCE, Reston, pp 195–209Google Scholar
  25. 25.
    Vanapalli SK, Fredlund DG, Pufahl DE, Clifton AW (1996) Model for the prediction of shear strength with respect to soil suction. Can Geotech J 33(3):379–392CrossRefGoogle Scholar
  26. 26.
    Wang SY, Chan DH, Lam KC, Au SKA (2010) Effect of lateral earth pressure coefficient on pressure controlled compaction grouting in triaxial condition. Soils Found 50(3):441–445CrossRefGoogle Scholar
  27. 27.
    Wang SY, Chan DH, Lam KC, Au SKA (2013) A new laboratory apparatus for studying dynamic compaction grouting into granular soils. Soils Found 55(3):462–468CrossRefGoogle Scholar
  28. 28.
    Wang Q, Wang S, Sloan SW, Sheng D, Pakzad R (2016) Experimental investigation of pressure grouting in sand. Soils Found 56(2):161–173CrossRefGoogle Scholar
  29. 29.
    Wang SY, Wang Q, Ye XY, Sloan SW, Sheng DC (2016) experimental study on an ideal compaction grouting into sand. In: 4th GeoChina international conference, sustainable civil infrastructures, July 25–27, 2016, Shandong, ChinaGoogle Scholar
  30. 30.
    Wang Q, Ye XY, Wang SY, Sloan SW, Sheng DC (2016) Effect of degree of saturation on the grout-soil interface shear strength of soil nailing. In: 3rd European conference on unsaturated soils, 12–14 Sept, 2016, Paris, FranceGoogle Scholar
  31. 31.
    Wang Q, Ye XY, Wang SY, Sloan SW, Sheng DC (2017) Development of a model test system for studying the behaviour of a compaction grouted soil nail under unsaturated conditions. Geotech Test J 40(5):20160229CrossRefGoogle Scholar
  32. 32.
    Wang Q, Ye XY, Wang SY, Sloan SW, Sheng DC (2017) Use of photo-based 3D photogrammetry in analysing the results of laboratory pressure grouting tests. Acta Geotech.  https://doi.org/10.1007/s11440-017-0597-2
  33. 33.
    Wu JY, Zhang ZM (2009) Evaluations of pull-out resistance of grouted soil nails. In: GeoHunan international conference, China, pp 108–114Google Scholar
  34. 34.
    Ye XY, Wang SY, Wang Q, Sloan SW, Sheng DC (2017) Numerical and experimental studies of the mechanical behaviour for compaction grouted soil nails in sandy soil. Comput Geotech 90:202–214CrossRefGoogle Scholar
  35. 35.
    Yin JH, Zhou WH (2009) Influence of grouting pressure and overburden stress on the interface resistance of a soil nail. J Geotech Geoenviron Eng ASCE 135(9):1198–1208CrossRefGoogle Scholar
  36. 36.
    Yin JH, Su LJ, Cheung RWM, Shiu YK, Tang C (2008) The influence of grouting pressure on the pullout resistance of soil nails in compacted completely decomposed granite fill. Geotechnique 59(2):103–113CrossRefGoogle Scholar
  37. 37.
    Zhang LL, Zhang LM, Tang WH (2009) Uncertainties of field pull-out resistance of soil nails. J Geotech Geoenviron Eng ASCE 135(7):966–972CrossRefGoogle Scholar
  38. 38.
    Zhou WH (2008) Experimental and theoretical study on pull-out resistance of grouted soil nails. Ph.D. thesis, The Hong Kong Polytechnic University, Hong KongGoogle Scholar
  39. 39.
    Zhou WH, Yin JH, Hong CY (2011) Finite element modelling of pullout testing on a soil nail in a pull-out box under different overburden and grouting pressures. Can Geotech J 48(4):557–567CrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Xinyu Ye
    • 1
  • Qiong Wang
    • 2
  • Shanyong Wang
    • 1
  • Scott Sloan
    • 1
  • Daichao Sheng
    • 1
  1. 1.ARC Centre of Excellence for Geotechnical Science and EngineeringThe University of NewcastleCallaghanAustralia
  2. 2.Key Laboratory of Geotechnical and Underground Engineering of Ministry of EducationTongji UniversityShanghaiPeople’s Republic of China

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