Modeling Effects of Moisture on Particle Breakage
Publication: International Journal of Geomechanics
Volume 21, Issue 9
Abstract
The recently developed framework for modeling grain breakage in granular materials is shown to be valid for saturated/unsaturated conditions. The model describes the initiation, development, and stabilization of breakage using three parameters, all depending on the strength of a representative particle size. When water is introduced, the strength of the soil's particles is expected to weaken, which leads to increased breakage intensities. The model is able to predict the early onset of crushing and the increase in particle breakage rate, both considered characteristic behaviors of a crushable granular medium in wet conditions. Initially dry and saturated model lines limit the evolution of the model parameters in the intermediate saturation states. A mid-loading change in the saturation of the granular medium results in an increased rate of particle breakage. The experimental data available in the literature is analyzed in light of the proposed model, which allows a better understanding of the development of particle breakage under the influence of water.
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Acknowledgments
The authors gratefully acknowledge the financial supports of the Natural Sciences and Engineering Research Council of Canada (NSERC) and their industrial partners, Hydro Québec, Klohn Crippen Berger, SNC-Lavalin, Golder Associates, Conetec, Hatch, WSP, and Qualitas.
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Published In
International Journal of Geomechanics
Volume 21 • Issue 9 • September 2021
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Dec 3, 2020
Accepted: Apr 20, 2021
Published online: Jun 18, 2021
Published in print: Sep 1, 2021
Discussion open until: Nov 18, 2021
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