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An Equation for calculating snow avalanche run-up against barriers

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada
FormatText, Article
ConferenceAvalanche formation, movement and effects: Proc. Davos Symp.: 1986-09, Davos, Switzerland
Subjectavalanche barriers; forces (mechanics); runout equations; takahashi/ yoshida equations; debris flows; debris wave; momentum; thrust; runout zone; slope run-up; voellmy equation underestimate; force (mécanique)
Abstract
The well known Voellmy runout equation is routinely used to dimension protective barriers for snow avalanches. This paper shows that the Takahashi and Yoshida runout equation for debris flows can be easily adapted to snow avalanches within the context of the Voellmy model. The adaptation is especially unambiguous when applied to the calculation of run-up; i.e. runout on a steep adverse slope. A numerical comparison indicates that the Voellmy equation underestimates run-up by at least 50% compared to the proposed method.
Publication date
In
  • IAHS Publication 162 (1987): 605–612.
LanguageEnglish
Peer reviewedYes
IdentifierIRC-P-1543
NRC numberNRCC 29067
NRC-IRC-1260
NPARC number20378750
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Record identifierad86ab6f-0e8a-47e9-9ab4-0d4d3079b84c
Record created2012-07-24
Record modified2020-06-06
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