Numerical modeling of Selanac debris flow propagation using SPH code
Објеката
- Тип
- Рад у зборнику
- Верзија рада
- објављена
- Језик
- енглески
- Креатор
- Jelka Krušić, Biljana Abolmasov, Miloš Marjanović, Manuel Pastor, Saeid M. Tayyebi
- Извор
- SCG-XIII International Symposium on Landslides. Cartagena, Colombia- February 22-26, 2021
- Уредник
- Miguel Angel Cabrera, Luis Felipe Prada-Sarmiento, Juan Montero
- Издавач
- International Society for Soil Mechanics And Geotechnical Engineering
- Датум издавања
- 2021
- Сажетак
-
The Selanac debris flow is a very huge event triggered after extreme rainfall caused by Cyclone Tamara activity in the Republic of Serbia in May 2014. The Selanac case study was already modelling in different programs using Voellmy rheology assumptions like RAMMS software. In this paper research are focusing particularly on the process of debris flowing from initiation zone to main deposition area using Geoflow SPH two-phase model considering frictional rheology law. Main rheological parameters are back-calculated using also Voellmy turbulent coefficient where best-fitted parameter was 1000 m/s2. The amount of entrainment material was included and calculated using Hungr approach. Apart from detail engineering geological mapping of debris flow, Electrical Resistivity Tomography (ERT) are used for validation of models, since depths and dimension of occurrence do not allow using regular geotechnical investigations. Validation of results was made by comparing against the field
investigation and high resolution Digital Terrain Model (DTM), also. Final models show accurate results comparing to the depths in deposition zone, but actual run-out distance of debris flow was longer than the measured run-out distance obtained by the SPH simulation model. Also, simulation results show heights and
volume change as well as depths of eroded material, which are in accordance with previous research results. It can be concluded that the SPH simulation model is capable to obtain reasonable results and properly back-calculate
the deposition depth and run-out distance. - број страница
- 7
- Просторно покривање
- Srbija
- Subject
- debris flow, modelling, SPH code, DEM
- Шира категорија рада
- М30
- Ужа категорија рада
- М33
- Права
- Отворени приступ
- Лиценца
- Creative Commons – Attribution 4.0 International
- Формат
- Медија
ISL2020-109.pdf
Jelka Krušić, Biljana Abolmasov, Miloš Marjanović, Manuel Pastor, Saeid M. Tayyebi . "Numerical modeling of Selanac debris flow propagation using SPH code" in SCG-XIII International Symposium on Landslides. Cartagena, Colombia- February 22-26, 2021, International Society for Soil Mechanics And Geotechnical Engineering (2021)
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