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Open AccessArticle

Snow Avalanche Impact Measurements at the Seehore Test Site in Aosta Valley (NW Italian Alps)

1
Department of Structural, Geotechnical and Building Engineering, Politecnico di Torino; Corso Duca degli Abruzzi 24, 10129 Torino, Italy
2
Department of Agriculture, Forest and Food Sciences and NatRisk, Università di Torino; L.go Braccini 2, 10095 Grugliasco (TO), Italy
*
Author to whom correspondence should be addressed.
Geosciences 2019, 9(11), 471; https://doi.org/10.3390/geosciences9110471
Received: 5 October 2019 / Revised: 25 October 2019 / Accepted: 6 November 2019 / Published: 7 November 2019
(This article belongs to the Special Issue Snow Avalanche Dynamics)
In full-scale snow avalanche test sites, structures such as pylons, plates, or dams have been used to measure impact forces and pressures from avalanches. Impact pressures are of extreme importance when dealing with issues such as hazard mapping and the design of buildings exposed to avalanches. In this paper, we present the force measurements recorded for five selected avalanches that occurred at the Seehore test site in Aosta Valley (NW Italian Alps). The five avalanches were small to medium-sized and cover a wide range in terms of snow characteristics and flow dynamics. Our aim was to analyze the force and pressure measurements with respect to the avalanche characteristics. We measured pressures in the range of 2 to 30 kPa. Though without exhaustive measurements of the avalanche flows, we found indications of different flow regimes. For example, we could appreciate some differences in the vertical profile of the pressures recorded for wet dense avalanches and powder ones. Being aware of the fact that more complete measurements are necessary to fully describe the avalanche flows, we think that the data of the five avalanches triggered at the Seehore test site might add some useful information to the ongoing scientific discussion on avalanche flow regimes and impact pressure. View Full-Text
Keywords: snow avalanches; impact forces; experimental data; full-scale test site snow avalanches; impact forces; experimental data; full-scale test site
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MDPI and ACS Style

Maggioni, M.; Barbero, M.; Barpi, F.; Borri-Brunetto, M.; De Biagi, V.; Freppaz, M.; Frigo, B.; Pallara, O.; Chiaia, B. Snow Avalanche Impact Measurements at the Seehore Test Site in Aosta Valley (NW Italian Alps). Geosciences 2019, 9, 471.

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