| Issue |
E3S Web of Conf.
Volume 415, 2023
8th International Conference on Debris Flow Hazard Mitigation (DFHM8)
|
|
|---|---|---|
| Article Number | 02026 | |
| Number of page(s) | 5 | |
| Section | Experiments and Modeling | |
| DOI | https://doi.org/10.1051/e3sconf/202341502026 | |
| Published online | 18 August 2023 | |
Mixture theory-based SPH model for submerged landslide
1 Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, 310058 Hangzhou, China
2 ESS Engineering Software Steyr GmbH, Berggasse 35, 4400 Steyr, Austria
3 Institut für Geotechnik, Universität für Bodenkultur, Feistmantelstraße 4, 1180 Vienna, Austria
* Corresponding author: wei.wu@boku.ac.at
A novel SPH model aimed at solving the coupled water-soil problems is proposed based on the mixture theory. This method is featured with the spatially overlapped dual continua for both fluid and solid phases. The water phase is modeled as a weakly-compressible Newtonian fluid, and the soil phase is modeled using an elastoplastic constitutive model. The benchmark problem, fully submerged soil subjected to gravity, is examined to validate this SPH model. Finally, a submerged landslide is simulated to demonstrate the capability of the proposed SPH model in solving the dynamic soil–water coupling problems.
© The Authors, published by EDP Sciences, 2023
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