| Issue |
E3S Web of Conf.
Volume 415, 2023
8th International Conference on Debris Flow Hazard Mitigation (DFHM8)
|
|
|---|---|---|
| Article Number | 06007 | |
| Number of page(s) | 4 | |
| Section | Engineering and Mitigation | |
| DOI | https://doi.org/10.1051/e3sconf/202341506007 | |
| Published online | 18 August 2023 | |
Effect of multiple debris flow countermeasures on flow characteristics and topographic changes through real-scale experiment
1 Gangneung-Wonju National University, Department of Civil Engineering, 25457 Gangneung, South Korea
2 Korea Advanced Institute of Science and Technology, Department of Civil and Environmental Engineering, 34141 Daejeon, South Korea
3 Korea Electric Power Research Institute, 34056 Daejeon, South Korea
* Corresponding author: yune@gwnu.ac.kr
In this study, to investigate the effect of multiple countermeasure on the flow characteristics of debris flows, a real-scale experiment was conducted in a natural gully by reproducing a debris flow with a installation of multiple countermeasures. In addition, the topographic changes before and after experiment by debris flow were investigated using UAV-LiDAR. Based on the experiment results, the effect of multiple countermeasures and the topographic changes against the gully erosion and deposition caused by debris flow were also analyzed. The installation of multiple countermeasures significantly decreased the frontal velocity of debris flow. Furthermore, the countermeasure induced the deposition of debris material on the back of the countermeasure.
© The Authors, published by EDP Sciences, 2023
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