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Numerical modelling of the resistance of the coarse sand barrier against backward erosion piping

Esther Rosenbrand, Vera Van Beek and Adam Bezuijen (UGent)
(2022) GEOTECHNIQUE. 72(6). p.522-531
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Abstract
The coarse sand barrier (CSB) is a novel remediation measure to reinforce embankments against the internal erosion mechanism of backward erosion piping (BEP). The feasibility of the CSB is investigated in a research programme consisting of experiments at different scales, numerical analysis and application at a pilot site in the Netherlands. Laboratory experiments showed that the CSB increased the critical head drop for BEP by one order of magnitude. In this paper, the strength of the CSB is quantified using numerical modelling of the experiments. A local, scale-independent, strength criterion for the CSB is derived based on medium-scale experiments. The application of this local criterion is illustrated for a field-scale model, in which the critical head drop that can be retained increases by a factor two to three with the CSB.
Keywords
Geotechnical Engineering and Engineering Geology, Earth and Planetary Sciences (miscellaneous), embankments, erosion, numerical modelling, remediation, SCALE

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Citation

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MLA
Rosenbrand, Esther, et al. “Numerical Modelling of the Resistance of the Coarse Sand Barrier against Backward Erosion Piping.” GEOTECHNIQUE, vol. 72, no. 6, 2022, pp. 522–31, doi:10.1680/jgeot.20.p.201.
APA
Rosenbrand, E., Van Beek, V., & Bezuijen, A. (2022). Numerical modelling of the resistance of the coarse sand barrier against backward erosion piping. GEOTECHNIQUE, 72(6), 522–531. https://doi.org/10.1680/jgeot.20.p.201
Chicago author-date
Rosenbrand, Esther, Vera Van Beek, and Adam Bezuijen. 2022. “Numerical Modelling of the Resistance of the Coarse Sand Barrier against Backward Erosion Piping.” GEOTECHNIQUE 72 (6): 522–31. https://doi.org/10.1680/jgeot.20.p.201.
Chicago author-date (all authors)
Rosenbrand, Esther, Vera Van Beek, and Adam Bezuijen. 2022. “Numerical Modelling of the Resistance of the Coarse Sand Barrier against Backward Erosion Piping.” GEOTECHNIQUE 72 (6): 522–531. doi:10.1680/jgeot.20.p.201.
Vancouver
1.
Rosenbrand E, Van Beek V, Bezuijen A. Numerical modelling of the resistance of the coarse sand barrier against backward erosion piping. GEOTECHNIQUE. 2022;72(6):522–31.
IEEE
[1]
E. Rosenbrand, V. Van Beek, and A. Bezuijen, “Numerical modelling of the resistance of the coarse sand barrier against backward erosion piping,” GEOTECHNIQUE, vol. 72, no. 6, pp. 522–531, 2022.
@article{8696636,
  abstract     = {{The coarse sand barrier (CSB) is a novel remediation measure to reinforce embankments against the internal erosion mechanism of backward erosion piping (BEP). The feasibility of the CSB is investigated in a research programme consisting of experiments at different scales, numerical analysis and application at a pilot site in the Netherlands. Laboratory experiments showed that the CSB increased the critical head drop for BEP by one order of magnitude. In this paper, the strength of the CSB is quantified using numerical modelling of the experiments. A local, scale-independent, strength criterion for the CSB is derived based on medium-scale experiments. The application of this local criterion is illustrated for a field-scale model, in which the critical head drop that can be retained increases by a factor two to three with the CSB.}},
  author       = {{Rosenbrand, Esther and Van Beek, Vera and Bezuijen, Adam}},
  issn         = {{0016-8505}},
  journal      = {{GEOTECHNIQUE}},
  keywords     = {{Geotechnical Engineering and Engineering Geology,Earth and Planetary Sciences (miscellaneous),embankments,erosion,numerical modelling,remediation,SCALE}},
  language     = {{eng}},
  number       = {{6}},
  pages        = {{522--531}},
  title        = {{Numerical modelling of the resistance of the coarse sand barrier against backward erosion piping}},
  url          = {{http://doi.org/10.1680/jgeot.20.p.201}},
  volume       = {{72}},
  year         = {{2022}},
}
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