Collected Item: “Numerical modeling of Selanac debris flow propagation using SPH code”
Врста публикације
Рад у зборнику
Верзија документа
објављена
Језик
енглески
Аутор/и (Милан Марковић, Никола Николић)
Jelka Krušić , Biljana Abolmasov, Miloš Marjanović, Manuel Pastor, Saeid M. Tayyebi
Наслов рада (Наслов - поднаслов)
Numerical modeling of Selanac debris flow propagation using SPH code
Назив конференције (зборника), место и датум одржавања
SCG-XIII INTERNATIONAL SYMPOSIUM ON LANDSLIDES. CARTAGENA, COLOMBIA- February 22-26, 2021
Уредник/ци зборника
Miguel Angel Cabrera, Luis Felipe Prada-Sarmiento and Juan Montero
Издавач (Београд : Просвета)
INTERNATIONAL SOCIETY FOR SOIL MECHANICS AND GEOTECHNICAL ENGINEERING
Година издавања
2021
Сажетак рада на енглеском језику
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.
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.
Укупан број страна (само уколико стране нису нумерисане)
7
Географско подручје на које се односи публикација
Srbija
Кључне речи на енглеском (одвојене знаком ", ")
"debris flow", "modelling", "SPH code", "DEM"
Линк
https://www.issmge.org/publications/online-library
Шира категорија рада према правилнику МПНТ
М30
Ужа категорија рада према правилнику МПНТ
М33
Ниво приступа
Отворени приступ
Лиценца
Creative Commons – Attribution 4.0 International
Формат датотеке
.pdf