Item: Numerical Model Application on Snow Avalanche in Turkey
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Title: Numerical Model Application on Snow Avalanche in Turkey
Proceedings: International Snow Science Workshop 2016 Proceedings, Breckenridge, CO, USA
Authors:
- Erhan Tekin [ Avalanche Research Team of Civil Eng. Dept, Gazi University, Ankara, Turkey ]
- Onder Kocyigit [ Avalanche Research Team of Civil Eng. Dept, Gazi University, Ankara, Turkey ]
- Levent Butun [ Avalanche Research Team of Civil Eng. Dept, Gazi University, Ankara, Turkey ]
Date: 2016-10-02
Abstract: Snow avalanches form a threat to human life in mountainous regions and significantly affect transportation condition. With recent developments in computer technology and programming, numerical models are inevitable tools which have been increasingly used in engineering. However, in Turkey, very limited number of numerical studies has been performed for avalanche simulations. So, in this study, RAMMS (rapid mass movement simulation), a numerical model developed by Swiss Ava-lanche Research (SLF) Center at Davos, has been applied for a selected avalanche track at Bozdag, Izmir, Turkey where a fatal avalanche disaster occurred in 2012-13 winter season. The model simulation result of run-out distance is found to be in good agreement with the measured value of run-out distance at the site right after the incident. Further simulations with new residential areas implemented are carried out at Bozdag Ski Center since the resort is planned to be in service with additional facilities from 2017. In this paper, some graphical representation of the results which consist of velocity, pressure and run-out distances are presented. Some input parameters in the model have been carefully reviewed in order to assign precise value for the area such as Voellmy-Salm friction factors (mu) and (xi) used in the RAMMS. Finally, discussion part of the paper presents a general remark of numerical model usage in Turkey.
Object ID: ISSW16_P1.06.pdf
Language of Article: English
Presenter(s):
Keywords: Avalanche Velocity, Friction Factor, RAMMS, Voellmy-Salm
Page Number(s): 521-524
Subjects: Avalanche Velocity RAMMS software Friction Factor
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