Changing grading of soil: effect on critical states

David Muir Wood, Kenichi Maeda

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    Examples of situations are presented where the grading of a soil changes during its lifetime either by crushing of particles leading to an increase of fine material or by slow transport of fine particles with seepage leading to a decrease of fine material. Such grading changes influence the basic constitutive properties of the soil, in particular properties such as critical states which are dependent on the available range of densities of packing. Discrete element modelling is used to show the dependence of critical state conditions on grading and the way in which the particle assembly seeks out new critical state conditions as the grading changes.
    Original languageUndefined/Unknown
    Pages (from-to)3-14
    Number of pages12
    JournalActa Geotechnica
    Issue number1
    Publication statusPublished - 2008

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