Jamming density of binary mixtures of granular soil

What is it about?

Granular soil, in a form of dry particles, can display a phase transition from a solid-like state to a fluid-like state (e.g., under slope failure or avalanching). We introduce a concept of particle volume-potential field, in analogous to the molecule chemical-potential, and developed a mathematical model for the prediction of the jamming density of binary mixtures of granular soil. The model has been validated by experimentally measured results.

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Photo by Vitaly Sacred on Unsplash

Photo by Vitaly Sacred on Unsplash

Why is it important?

It is hoped that this study will provide a better understanding of the link between the phase transition and the size dispersity of granular soil. The concept of volume-potential field is useful for the explanation of large geophysical flow, such as large landslides.