Item: Taconnaz Avalanche Path: Pressure and Velocity Measurements on Breaking Mounds
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Title: Taconnaz Avalanche Path: Pressure and Velocity Measurements on Breaking Mounds
Proceedings: International Snow Science Workshop Grenoble – Chamonix Mont-Blanc - October 07-11, 2013
Authors:
- Bellot H.
- Naaim-Bouvet F.
- Naaim M.
- Caccamo P.
- Faug T.
- Ousset F.
Date: 2013-10-07
Abstract: This paper describes the instrumentation related to velocity and pressure measurements recently set up in the avalanche protection system of Taconnaz. Previous studies on the impact pressure stemming from snow avalanches on the basis of experimental measures revealed very complex loading spectra. More particularly, open questions relative to the incident flow regime and the flow-obstacle geometry, and to how the mean pressure and fluctuations can be influenced, remain challenging issues. The Taconnaz avalanche path (Chamonix, France) is characterized by remarkable dimensions. The passive protection system has been recently improved in the framework of an expertise conducted by Irstea (formerly Cemagref). The new defence structures, retarding mounds in particular, have been equipped with sensors in order to measure the local velocity in the vicinity of those obstacles as well as the impact pressure stemming from snow avalanches, in the framework of the Alcotra DYNAVAL Interreg project. The first measurements have been obtained from the avalanche that occurred at the end of December, 2010.
Object ID: ISSW13_paper_O4-37.pdf
Language of Article: English
Presenter(s): Unknown
Keywords: snow, avalanche, protection, Taconnaz, force, metrology
Page Number(s): 1378-1383
Subjects: avalanche protection avalanche paths snow avalanche
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