Abstract
The results of material entrainment analysis in RAMMS debris flow software, as well as numerical models of final flow heights for two case studies from the Republic of Serbia are presented. Both cases were triggered after extreme rainfall period in May 2014. These debris flow processes started with initial sliding of huge volume block, prolonging to behave as flowing process. They are situated in different regions of country and quite different in sense of geology, gravel size, geometry etc. Results of the analysis showed that entrainment material affects final results of transportation model, runout distance, deposition area and volume of debris flow. In both cases entrainment volume is very huge, but it is much less than initial volume (about 11% of total volume in both case studies). Final results are validated with pre- and post- event DEMs (Digital Elevation Models and analysis of ERT geophysical results.
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Acknowledgements
The research results will be not possible without Project BEWARE (BEyond landslide aWAREness) funded by the People of Japan and the UNDP Office in Serbia (grant No 00094641). The project was implemented by the State Geological Survey of Serbia, and the University of Belgrade Faculty of Mining and Geology. All activities are supported by the Ministry for Energy and Mining and the Ministry for Education, Science and Technological Development of the Republic of Serbia Project No TR36009, too.
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Krušić, J., Abolmasov, B., Marjanović, M. (2021). Numerical Models of Debris Flows with Entrainment Analysis-Case Studies from the Republic of Serbia. In: Tiwari, B., Sassa, K., Bobrowsky, P.T., Takara, K. (eds) Understanding and Reducing Landslide Disaster Risk. WLF 2020. ICL Contribution to Landslide Disaster Risk Reduction. Springer, Cham. https://doi.org/10.1007/978-3-030-60706-7_25
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