Centrifuge Model Tests of Basal Reinforcement Effects on Geosynthetic-Reinforced Pile-Supported Embankment

  • Chao Xu
  • Di WuEmail author
  • Shitong Song
  • Baochen Liu
Conference paper


As an effective and economical structure, geosynthetic-reinforced pile-supported (GRPS) embankment has been used in the construction of roadbed of railway and highway in soft soil area. Its key load transfer mechanism includes the soil arching effect of the embankment fill and the tensioned membrane effect of reinforcement in the mattress. Via these two effects, more embankment load is carried by piles, and the total settlement and differential settlement of the roadbed can be under control. Four centrifuge model tests were conducted to study the reinforcement effect of geosynthetic on embankment stability and pile efficacy. The following results are achieved: the surface settlement and differential settlement of embankment could be effectively reduced through appropriate setting of reinforced mattress; Basal reinforcement increased the pile efficacy and was affected by the number of reinforcement layers; The tensile force of geogrid below the embankment shoulder was larger than that near the road center because of the lateral restraint of basal reinforcement.


Geosynthetic-reinforced and pile-supported (GRPS) embankment Geogrid Basal reinforcement Membrane effect Arching effect Centrifuge model test 



Financial support for this work is gratefully acknowledged from the Natural Science Foundation of China Grant 41772284 and Natural Science Foundation of Guangxi Grant 2015GXNSFBA139236. All the support is greatly appreciated.


  1. 1.
    Hewlett, W.J., Randolph, M.F.: Analysis of piled embankments. Ground Eng. 22(3), 12–18 (1988)Google Scholar
  2. 2.
    Low, B.K., Tang, S.K., Chao, V.: Arching in piled embankments. J. Geotech. Geoenvironmental Engineering, ASCE 120(11), 1917–1938 (1994)CrossRefGoogle Scholar
  3. 3.
    Chew, S.H., Phoon, H.L.: Geotextile reinforced piled embankment-full scale model tests. In: Proceeding of the 3rd Asian Regional Conference on Geosynthetics, pp. 661–668 (2004)Google Scholar
  4. 4.
    Cao, W.P., Chen, R.P., Chen, Y.M.: Experimental investigation on soil arching in piled reinforced embankments. Chin. J. Geotech. Eng. 29(3), 436–441 (2007)Google Scholar
  5. 5.
    Barchard, J.M.: Centrifuge Modelling of Piled Embankments on Soft Soils. University of New Brunswick, Fredericton (1999)Google Scholar
  6. 6.
    Zhang, L., Luo, Q., Pei, F.Y., Yang, Y.: Bearing stratum effect at pile end of pile-cap-net structure subgrade based on centrifugal model tests. Chin. J. Geotech. Eng. 31(8), 1192–1199 (2009)Google Scholar
  7. 7.
    Wang, C.D., Wang, B.L., Wang, X., Zhou, S.H.: Analysis on settlement controlling effect of pile-net composite foundation on collapsible loess by centrifugal model tests. J. Chin. Railw. Soc. 33(4), 84–92 (2011)Google Scholar
  8. 8.
    Han, J., Gabr, M.A.: Numerical analysis of geosynthetic-reinforced and pile-supported earth platforms over soft soil. J. Geotech. Geoenvironmental Eng. 128(1), 44–53 (2002)CrossRefGoogle Scholar
  9. 9.
    Briançon, L., Delmas, P.H., Villard, P.: Study of the load transfer mechanisms in reinforced pile-supported embankments. In: Proceedings of 9 ICG, Brazil, pp. 1917–1920 (2010)Google Scholar
  10. 10.
    Van Eekelen, S.J.M., Benzuijen, A., Jansen, H.L.: Piled embankment using geosynthetic reinforcement in the Netherlands: design, monitoring & evaluation. In: Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering, pp. 1690–1693 (2009)Google Scholar
  11. 11.
    Chai, J.C., Miura, N., Shen, S.L.: Performance of embankments with and without reinforcement on soft subsoil. Can. Geotech. J. 39(4), 838–848 (2002)CrossRefGoogle Scholar
  12. 12.
    Fei, K., Liu, H.L.: Field test study and numerical analysis of a geogrid-reinforced and pile-supported embankment. Rock Soil Mech. 30(4), 1004–1012 (2009)Google Scholar

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© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Key Laboratory of Geotechnical and Underground Engineering of Ministry of EducationTongji UniversityShanghaiChina
  2. 2.College of Architecture and Transportation EngineeringGuilin University of Electronic TechnologyGuilinChina

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