Modeling the 2D behavior of dry-stone retaining walls by a fully discrete element method

J.J. Oetomo, E. Vincens, F. Dedecker, Jean-Claude Morel

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    Abstract

    The dry-stone retaining walls (DSRW) have been tipped as a promising solution for sustainable development. However, before recently, their behavior is relatively obscure. In this study, discrete element method (DEM) approach was applied to simulate the plane strain failure of these walls. A commercial DEM package (PFC2D™) was used throughout this study. The authors used a fully discrete approach; thus, both the wall and the backfill were modeled as discrete elements. The methodology for obtaining the micromechanical parameters was discussed in detail; this includes the three mechanical sub-systems of DSRWs: wall, backfill and interface. The models were loaded progressively until failure, and then the results were compared with the full-scale experimental results where the walls were loaded, respectively, with hydrostatic load and backfill. Despite its complexity and its intensive calculation time, DEM model can then be used to validate a more simplified approach. Copyright © 2015 John Wiley & Sons, Ltd.
    Original languageEnglish
    Pages (from-to)1099-1120
    JournalInternational Journal for Numerical and Analytical Methods in Geomechanics
    Volume40
    Issue number7
    DOIs
    Publication statusPublished - 9 Dec 2015

    Bibliographical note

    This is the peer reviewed version of the following article: Oetomo, J.J. , Vincens, E. , Dedecker, F. and Morel, J. C. (2015) Modeling the 2D behavior of dry-stone retaining walls by a fully discrete element method. International Journal for Numerical and Analytical Methods in Geomechanics, volume 40 (7): 1099-1120, which has been published in final form at http://dx.doi.org/10.1002/nag.2480 This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.

    Keywords

    • dry-stone
    • retaining wall
    • discrete element method
    • plane strain failure

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