An Equation for calculating snow avalanche run-up against barriers

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Proceedings titleIAHS Publication
ConferenceAvalanche formation, movement and effects: Proc. Davos Symp.: 1986-09, Davos, Switzerland
Pages60512; # of pages: 594
Subjectavalanche barriers; forces (mechanics); runout equations; takahashi/ yoshida equations; debris flows; debris wave; momentum; thrust; runout zone; slope run-up; voellmy equation underestimate
AbstractThe 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
PublisherB. Salm, H. Gubler, Eds., International Association of Hydrological Sciences, Publ.
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number29067
NPARC number20378750
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Record identifierad86ab6f-0e8a-47e9-9ab4-0d4d3079b84c
Record created2012-07-24
Record modified2016-05-09
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