期刊
ACTA GEOTECHNICA
卷 3, 期 1, 页码 3-14出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11440-007-0041-0
关键词
Discrete element modelling; Critical states; Non-plastic soil; Particle size distribution; Fractals; State parameter
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.
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