Soft Soil Behavior Under High-Speed Railway Embankment Loading Using Numerical Modelling

Mridakh, Ahmed Hamza; Ejjaaouani, Houssine; Nguyen, Ba-Phu; Lahlou, Fouad; Labied, Hassan

doi:10.1007/s10706-022-02059-z

Cited by 8 publications

(1 citation statement)

References 18 publications

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“…In the last decade and due to the development of numerical modeling methods to solve challenging geotechnical problems, researcher have advanced their research methods to predict soft soil behaviour while using prefabricated vertical drains [2], when some presented a complete detailed studies based on numerous matching method when using PVD's [3] [4]. Similarly, in the studied area multiple publications have been published in regards of soil behaviour prediction under the Moroccan high speed railway Embankment [5] [6] [7], of which soft soil behaviour was studied during Classe A and Classe C prediction for precise numerical simulation objective in Sebou area [5] [7]. In addition to studying artesian pressure effect of soft soil behaviour in Drader area under the HSRL.…”

Section: Numerical Modelingmentioning

confidence: 99%

Vertical drainage of compressible soils under the Moroccan high-speed railway line

Mridakh¹,

Ejjaaouani²

2023

E3S Web Conf.

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This research work presents the high-speed railway line (HSRL) case study constructed on soft soils deposits. The performance of the improvement method combining both PVD’s (Prefabricated vertical drains) and surcharge preloading was evaluated herein based on numerical simulation approach to predict the induced deformations during the HSRL construction phase. For this aim, the performance of the PVD-assisted preloading was evaluated based on in situ measurement database from a selected well instrumented embankment. From the results, it was observed that the use of the PVD and preloading was found as the most efficient improvement method for improved section. In addition, multiple modelling approaches were used for the studied section to evaluate the usefulness of the published literature on the PVD- surcharge system performance. For that, is was concluded that the well-developed numerical approaches in the literature is an encouraging factor for using the PVD-preloading improvement method in both practice and research.

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