Technical note: Preliminary estimation of rockfall runout zones

Détails

ID Serval
serval:BIB_64764B7D63C7
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Technical note: Preliminary estimation of rockfall runout zones
Périodique
Natural Hazards and Earth System Science
Auteur(s)
Jaboyedoff M., Labiouse V.
ISSN-L
1561-8633
Statut éditorial
Publié
Date de publication
2011
Peer-reviewed
Oui
Volume
11
Pages
819-828
Langue
anglais
Notes
Jaboyedoff2011b
Résumé
Rockfall propagation areas can be determined using a simple geometric
rule known as shadow angle or energy line method based on a simple
Coulomb frictional model implemented in the CONEFALL computer program.
Runout zones are estimated from a digital terrain model (DTM) and
a grid file containing the cells representing rockfall potential
source areas. The cells of the DTM that are lowest in altitude and
located within a cone centered on a rockfall source cell belong to
the potential propagation area associated with that grid cell. In
addition, the CONEFALL method allows estimation of mean and maximum
velocities and energies of blocks in the rockfall propagation areas.
Previous studies indicate that the slope angle cone ranges from 27°
to 37° depending on the assumptions made, i.e. slope morphology,
probability of reaching a point, maximum run-out, field observations.
Different solutions based on previous work and an example of an actual
rockfall event are presented here.
Mots-clé
regional-scale, elevation models, hazards, GIS, susceptibility, simulation, slopes, talus
Open Access
Oui
Création de la notice
25/11/2013 17:26
Dernière modification de la notice
20/08/2019 15:20
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