| Issue |
E3S Web Conf.
Volume 248, 2021
2021 3rd International Conference on Civil Architecture and Energy Science (CAES 2021)
|
|
|---|---|---|
| Article Number | 03061 | |
| Number of page(s) | 4 | |
| Section | Research on Civil Water Conservancy Engineering and Urban Architecture | |
| DOI | https://doi.org/10.1051/e3sconf/202124803061 | |
| Published online | 12 April 2021 | |
Impact resistance analysis of grille dam based on fluid structure interaction
1 School of civil engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, China
2 Western Center for Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China
* Corresponding author: zhujia198325@163.com
Aiming at the impact failure of debris flow grille dam, considering the interaction of boulder-debris flow slurry- grille dam based on SPH-FEM, this article analyzed the variation laws of velocity, impact force and support reaction before and after debris flow slurry and boulders passing through grille dam. The results show that: SPH-FEM coupling method can truly reappear the impact of debris flow on the grille dam; the velocity of debris flow slurry and boulder are reduced by nearly 60% after passing through the dam, and the effect is remarkable; debris flow slurry and boulder have secondary impact on the grille dam. In the first impact, the greater the radius of the boulder, the greater the impact force; in the second impact, the impact force has nothing to do with the radius of the boulder.
© The Authors, published by EDP Sciences, 2021
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