| Issue |
E3S Web of Conf.
Volume 415, 2023
8th International Conference on Debris Flow Hazard Mitigation (DFHM8)
|
|
|---|---|---|
| Article Number | 01021 | |
| Number of page(s) | 4 | |
| Section | Processes and Mechanics | |
| DOI | https://doi.org/10.1051/e3sconf/202341501021 | |
| Published online | 18 August 2023 | |
Segregation of water and gravel using large ball mill device laid roughness bed
1 National Defence Academy Civil Engineering, 2388686 Yokosuka Kanagawa, Japan
2 Associate professor, National Defence Academy Civil Engineering, 2388686 Yokosuka Kanagawa, Japan
* Corresponding author: em61030@nda.ac.jp
This paper presents an experimental approach to study the phenomena of segregating water and gravel using a large ball mill device that reproduces segregation phenomena under debris flow. First, the experiment was conducted in a ball mill device under various conditions: water and gravel mixing, bed velocity, and laid roughness. The occurrence conditions of the segregation phenomena of water and gravel mixing are categorized and compared with each other with and/or without roughness on the bed. Furthermore, the movements after water and gravel mixing in the ball mill device are observed to investigate the segregation mechanism.
© The Authors, published by EDP Sciences, 2023
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