Geomechanics and Engineering

  • 제17권1호
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  • Pages.1-9
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  • 2019
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Three-dimensional numerical modelling of geocell reinforced soils and its practical application

  • Song, Fei (Institute of Geotechnical Engineering, School of Highway Engineering, Chang'an University) ;
  • Tian, Yinghui (State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University)
  • 투고 : 2017.10.30
  • 심사 : 2018.11.23
  • 발행 : 2019.01.20
⟨ 이전 논문 다음 논문 ⟩

초록

This paper proposes a new numerical approach to model geocell reinforced soils, where the geocell is described as membrane elements and the complex interaction between geocell and soil is realized by coupling their degrees of freedom. The effectiveness and robustness of this approach are demonstrated using two examples, i.e., a geocell-reinforced foundation and a large scale retaining wall project. The first example validates the approach against established solutions through a comprehensive parametrical study to understand the influence of geocell on the improvement of bearing capacity of foundations. The study results show that reducing the geocell pocket size has a strong effect on improving the bearing capacity. In addition, when the aspect ratio maintains the same value, the bearing capacity improvement with increasing geocell height is insignificant. Comparing with the field monitoring and measurement in the project, the second example investigates the application of the approach to practical engineering projects. This paper provides a practically feasible and efficient modelling approach, where no explicit interface or contact is required. This allows geocell reinforced soils in large scale project can be effectively modelled where the mechanism for complex geocell-soil interaction can be explicitly observed.

키워드

과제정보

연구 과제 주관 기관 : Central Universities, National Natural Science Foundation of China

참고문헌

  1. Bathurst, R.J. and Knight, M.A. (1998), "Analysis of geocell reinforced-soil covers over large span conduits", Comput. Geotech., 22(3-4), 205-219. https://doi.org/10.1016/S0266-352X(98)00008-1
  2. Cassidy, M., Uzielli, M. and Tian, Y.H. (2013), "Probabilistic combined loading failure envelopes of a strip footing on spatially variable soil", Comput. Geotech., 49, 191-205. https://doi.org/10.1016/j.compgeo.2012.10.008
  3. Chen, R.H., Wu, C.P., Huang, F.C. and Shen, C.W. (2013), "Numerical analysis of geocell-reinforced retaining structures", Geotext. Geomembranes, 39(8), 51-62. https://doi.org/10.1016/j.geotexmem.2013.07.003
  4. Cox, A.D., Eason, G. and Hopkins, H.G. (1961), "Axially symmetric plastic deformation of soils", Proc. Royal Soc. London Ser. A, 254, 1-45.
  5. Dash, S.K., Sireesh, S. and Sitharam, T. G. (2003), "Model studies on circular footing supported on geocell reinforced sand underlain by soft clay", Geotext. Geomembranes, 21(4), 197-219. https://doi.org/10.1016/S0266-1144(03)00017-7
  6. Gourvenec, S. and Randolph, M. (2003), "Effect of strength nonhomogeneity on the shape of failure envelopes for combined loading of strip and circular foundations on clay", Geotechnique, 53(6), 575-586. https://doi.org/10.1680/geot.2003.53.6.575
  7. Griffiths, D.V. and Fenton, G.A. (2001), "Bearing capacity of spatially random soil: the undrained clay Prandtl problem revisited", Geotechnique, 51(4), 351-359. https://doi.org/10.1680/geot.2001.51.4.351
  8. Han, J., Yang, X.M., Leshchinsky, D. and Parsons, R.L. (2008), "Behavior of geocell-reinforced sand under a vertical load", Transport. Res. Rec. J. Transport. Res. Board, (2045), 95-101.
  9. Hedge, A. and Sitharam, T.G. (2013), "Experimental and numerical studies on footings supported on geocell reinforced sand and clay beds", Int. J. Geotech. Eng., 7(4), 346-354. https://doi.org/10.1179/1938636213Z.00000000043
  10. Hegde, A. and Sitharam, T.G. (2015a), "3-Dimensional numerical modelling of geocell reinforced sand beds", Geotext. Geomembranes, 43(2), 171-181. https://doi.org/10.1016/j.geotexmem.2014.11.009
  11. Hegde, A.M. and Sitharam, T.G. (2015b), "Three-dimensional numerical analysis of geocell-reinforced soft clay beds by considering the actual geometry of geocell pockets", Can. Geotech. J., 52(9), 1-12. https://doi.org/10.1139/cgj-2013-0324
  12. Houlsby, G.T. and Wroth, C.P. (1983), "Calculation of stresses on shallow penetrometers and footings", Proceedings of the IUTAM/IUGG Seabed Mechanics, Newcastle, U.K., September.
  13. Krishnaswamy, N R., Rajagopal, K. and Madhavi Latha, G. (2000), "Model studies on geocell supported embankments constructed over a soft clay foundation", Geotech. Test. J., 23(2), 45-54. https://doi.org/10.1520/GTJ11122J
  14. Leshchinsky, B. and Ling, H. (2013a), "Effects of geocell confinement on strength and deformation behavior of gravel." J. Geotech. Geoenviron. Eng., 139(2), 340-352. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000757
  15. Leshchinsky, B. and Ling, H. (2013b), "Numerical modeling of behavior of railway ballasted structure with geocell confinement", Geotext. Geomembranes, 36, 33-43. https://doi.org/10.1016/j.geotexmem.2012.10.006
  16. Li, C., Ashlock, J.C., Cetin, B., Jahren, C.T. and Goetz, V. (2018), "Performance-based design method for gradation and plasticity of granular road surface materials", Transportation Research Record, 0361198118787372.
  17. Li, C., Ashlock, J.C., White, D.J. and Vennapusa, P.K. (2019), "Mechanistic-based comparisons of stabilised base and granular surface layers of low-volume roads", Int. J. Pavement Eng., 20(1), 112-124. https://doi.org/10.1080/10298436.2017.1321417
  18. Madhavi Latha, G. and Rajagopal, K. (2007), "Parametric finite element analyses of geocell-supported embankment", Can. Geotech. J., 44(8), 917-927. https://doi.org/10.1139/T07-039
  19. Madhavi Latha, G., Dash, S.K. and Rajagopal, K. (2008), "Equivalent continuum simulations of geocell reinforced sand beds supporting strip footings", Geotech. Geol. Eng., 26(4), 387-398. https://doi.org/10.1007/s10706-008-9176-5
  20. Madhavi Latha, G., Dash, S.K. and Rajagopal,K. (2009), "Numerical simulation of the behavior of geocell reinforced sand in foundations", Int. J. Geomech., 9(4), 143-152. https://doi.org/10.1061/(ASCE)1532-3641(2009)9:4(143)
  21. Martin, C.M. (2001), "Vertical bearing capacity of skirted circular foundations on Tresca soil", Proceedings of the 15th International Conference on Soil Mechanics and Geotechnical Engineering, Lahore, Pakistan, December.
  22. Mehdipour, I., Ghazavi, M. and Moayed, R.Z. (2013), "Numerical study on stability analysis of geocell reinforced slopes by considering the bending effect", Geotext. Geomembranes, 37, 23-34. https://doi.org/10.1016/j.geotexmem.2013.01.001
  23. Monroy Aceves, C., Mcmillan, A.J., Sutcliffe, M.P.F., Stronge, W.J., Choudhry, R.S. and Care, I.C.D. (2010), Low-Speed Impact Damage in Hybrid 2D-Braided Composite Plates, in Recent Advances in Textile Composites, DEStech Publications, Inc., 306-313.
  24. Qiu, L.J., Hao, M.D. and Wu, Y.P. (2017), "Potential impacts of climate change on carbon dynamics in a rain-fed agroecosystem on the Loess Plateau of China", Sci. Total Environ., 577, 267-278. https://doi.org/10.1016/j.scitotenv.2016.10.178
  25. Rea, C. and Mitchell, J.K. (1978), "Sand reinforcement using paper grid cells", Proceedings of the Symposium on Earth Reinforcement, Pittsburgh, Pennsylvania, U.S.A., April
  26. Saride, S., Gowrisetti, S., Sitharam, T.G. and Puppala, A.J. (2009), "Numerical simulation of geocell-reinforced sand and clay", Ground Improv., 162(4), 185-198. https://doi.org/10.1680/grim.2009.162.4.185
  27. Sitharam, T.G. and Sireesh, S. (2005), "Behaviour of embedded footings supported on geocell reinforced foundation beds", Geotech. Test. J., 28(5), 452-463.
  28. Sitharam, T.G., Sireesh, S. and Dash, S.K. (2005), "Model studies of a circular footing supported on geocell-reinforced clay", Can. Geotech. J., 42(2), 693-703. https://doi.org/10.1139/t04-117
  29. Webster, S.L. (1979a), "Investigation of beach sand trafficability enhancement using sand-grid confinement and membrane reinforcement concepts", Report 1, Sand Test Sections 1 and 2, Technical Report GL-79-20, Geotechnical Laboratory, US Army Corps of Engineers Waterways Experimentation Station, Vicksburg, Mississippi, U.S.A.
  30. Webster, S.L. (1979b), "Investigation of beach sand trafficability enhancement using sand-grid confinement and membrane reinforcement concepts", Report 1, Sand Test Sections 3 and 4, Technical Report GL-79-20, Geotechnical Laboratory, US Army Corps of Engineers Waterways Experimentation Station, Vicksburg, Mississippi, U.S.A.
  31. Webster, S.L. and Watkins, J.E. (1977), "Investigation of construction techniques for tactical bridge approach roads across soft ground", Technical Report S-77-1, U.S. Army Engineer Waterways Experiment Station, Vicksburg, Mississippi, U.S.A.
  32. Xie, Y.L. and Yang, X.H. (2009), "Characteristics of a new-type geocell flexible retaining wall", J. Mater. Civ. Eng., 21(4),171-175. https://doi.org/10.1061/(ASCE)0899-1561(2009)21:4(171)
  33. Yang, X.M., Han, J., Parsons, R.L. and Leshchinsky, D. (2010), "Three-dimensional numerical modeling of single geocellreinforced sand", Front. Arch. Civ. Eng. China, 4(2), 233-240. https://doi.org/10.1007/s11709-010-0020-7

피인용 문헌

  1. Numerical investigation of geocell reinforced slopes behavior by considering geocell geometry effect vol.24, pp.6, 2019, https://doi.org/10.12989/gae.2021.24.6.589