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ORIGINAL RESEARCH article
Front. Built Environ.
Sec. Geotechnical Engineering
Volume 11 - 2025 |
doi: 10.3389/fbuil.2025.1523557
This article is part of the Research Topic Recent Advances in Numerical Modelling for Soil and Soil-Structure Interactions View all 5 articles
Numerical analysis of time dependent behavior of an embankment on PVD-installed Sebou soft soils
Provisionally accepted- 1 Department of Mines, Mines School of Rabat, Rabat, Morocco
- 2 Industrial University of Ho Chi Minh City, Ho Chi Minh City, Vietnam
- 3 Laboratoire Public D’Essais et D’Etudes, Casablanca, Morocco
In this paper, finite element (FE) modeling is conducted for a high-speed railway embankment on soft soils in Sebou, Morocco. Discrepancies arise between predicted and measured behaviors when using standard creep models. To address this, an advanced anisotropic creep constitutive model, known as Creep-SCLAY1S, is applied for comparison, focusing on the prefabricated vertical drain (PVD) treated soft soils. This advanced model incorporates fabric anisotropy, soil structure, and time-dependent behavior. For further comparison, the time-dependent Soft Soil Creep Model (SSCM) is also employed. Numerical predictions are then compared with field instrumentation data. Results indicate that Creep-SCLAY1S offers improved predictions of in-situ measurements, particularly post-construction, and provides a more accurate peak excess pore pressure during the embankment's rapid surcharge phase.
Keywords: Embankment, Soft soil, deformation, vertical drains, creep, Numerical Analysis
Received: 06 Nov 2024; Accepted: 17 Jan 2025.
Copyright: © 2025 Mridakh, Nguyen, Ejjaaouani and Labied. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
A H Mridakh, Department of Mines, Mines School of Rabat, Rabat, Morocco
Ba-Phu Nguyen, Industrial University of Ho Chi Minh City, Ho Chi Minh City, Vietnam
H Ejjaaouani, Laboratoire Public D’Essais et D’Etudes, Casablanca, Morocco
H Labied, Laboratoire Public D’Essais et D’Etudes, Casablanca, Morocco
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