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

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Abstract

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.

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Acknowledgements

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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Authors and Affiliations

  1. Laboratoire de Génie énergétique et matériaux, Faculté des Sciences, Université Ibn Tofail, Campus Maâmora, BP.133, 14000, Kenitra, Morocco

    Ahmed Hamza Mridakh & Fouad Lahlou

  2. Laboratoire Public D’Essais et D’Etudes, BP13385, 20110, Casablanca, Morocco

    Houssine Ejjaaouani & Hassan Labied

  3. Laboratoire de Géosciences des Ressources Naturelles, Faculté des Sciences, Université Ibn Tofail, Campus Maâmora, BP.133, 14000, Kenitra, Morocco

    Abdelaziz Mridekh

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  1. Ahmed Hamza Mridakh
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  2. Fouad Lahlou
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  3. Houssine Ejjaaouani
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  4. Abdelaziz Mridekh
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Correspondence to Ahmed Hamza Mridakh.

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Mridakh, A.H., Lahlou, F., Ejjaaouani, H. et al. Soil Improvement of Alluvial Deposits Under High-Speed Railway Embankment: Field Case Study. Geotech Geol Eng 37, 3589–3603 (2019). https://doi.org/10.1007/s10706-019-00855-8

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