Soil Improvement of Alluvial Deposits Under High-Speed Railway Embankment: Field Case Study

  • Ahmed Hamza MridakhEmail author
  • Fouad Lahlou
  • Houssine Ejjaaouani
  • Abdelaziz Mridekh
  • Hassan Labied
Original Paper


This paper describes the performance of the Moroccan high-speed railway embankment over alluvial soft ground treated with prefabricated vertical drains. For analyzing soil behavior, numerical analyses were performed under 2D finite element Plaxis code. The authors undertook Class-B prediction at first, using two different constitutive models, soft soil and soft soil creep (SSC) models. Class-C prediction was then performed using only SSC. By comparing the predictions with field measurement, it was concluded that the time-dependent model (SSC) produced acceptable results . However, reasonable modification for the SSC model input parameters in Class-C prediction led to obtain accurate matches with field measurements.


Alluvial deposits PVD Embankment FEM Constitutive models 



The work presented was supported by the LPEE (Laboratoire Public d’Essais et d’Etudes). The author would like to thank all personnel in the LPEE for providing all data necessary for the completion of this work. We also thank anonymous reviewers for their comments and suggestions.


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Ahmed Hamza Mridakh
    • 1
    Email author
  • Fouad Lahlou
    • 1
  • Houssine Ejjaaouani
    • 2
  • Abdelaziz Mridekh
    • 3
  • Hassan Labied
    • 2
  1. 1.Laboratoire de Génie énergétique et matériaux, Faculté des SciencesUniversité Ibn TofailKenitraMorocco
  2. 2.Laboratoire Public D’Essais et D’EtudesCasablancaMorocco
  3. 3.Laboratoire de Géosciences des Ressources Naturelles, Faculté des SciencesUniversité Ibn TofailKenitraMorocco

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