Discrete element modelling of soil erosion

David Muir Wood, Kenichi Maeda, Emi Nukudani

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

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    Abstract

    The process of internal erosion of ¯ne particles from a soil has been modelled using two-dimensional discrete element analysis of assemblies of circular discs of various gradings. Maintaining a sample under constant stresses, finer particles have been progressively removed and the resulting deformations observed. The stability of the particle removal is related to the stress ratio which the sample is experiencing. The material is described by a model in which strength is controlled by state parameter - distance from the critical state line. As the grading is narrowed the critical state line rises, but as particles are removed the specific volume rises more rapidly and the material feels looser.
    Original languageEnglish
    Title of host publication4th International Conference on Scour and Erosion
    PublisherJapanese Geotechnical Society
    Pages491-496
    Number of pages6
    Publication statusPublished - 2008
    EventFourth International Conference on Scour and Erosion - Tokyo, Japan
    Duration: 5 Nov 20087 Nov 2008
    http://scour-and-erosion.baw.de/conferences/icse4/index.php.html

    Conference

    ConferenceFourth International Conference on Scour and Erosion
    Abbreviated titleICSE-4
    CountryJapan
    CityTokyo
    Period5/11/087/11/08
    Internet address

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  • Cite this

    Muir Wood, D., Maeda, K., & Nukudani, E. (2008). Discrete element modelling of soil erosion. In 4th International Conference on Scour and Erosion (pp. 491-496). Japanese Geotechnical Society.