| Issue |
EPJ Web Conf.
Volume 340, 2025
Powders & Grains 2025 – 10th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 10011 | |
| Number of page(s) | 4 | |
| Section | Experimental Methods for Granular Mechanics | |
| DOI | https://doi.org/10.1051/epjconf/202534010011 | |
| Published online | 01 December 2025 | |
https://doi.org/10.1051/epjconf/202534010011
Monitoring micro-failures prior to granular avalanches using Diffusive Acoustic Wave Spectroscopy and Grain Tracking
Navier, Ecole des Ponts, Univ. Gustave Eiffel, CNRS, Marne-la-Vallée 77420, France
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Published online: 1 December 2025
Abstract
Granular avalanches occur in both natural and industrial environments, influencing landscape evolution and posing risks in engineering applications. Understanding their precursors is crucial for predicting failure events and mitigating hazards. This study explores kinematic indicators of impending avalanches through strain fluctuations, measured via Diffusive AcousticWave Spectroscopy and grain tracking. We find that strain fluctuations grow exponentially as the system approaches the avalanche angle, and that the amplitude of this growth is controlled by the initial packing fraction of the pile.
© The Authors, published by EDP Sciences, 2025
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