Regional deterministic characterization of fracture networks and its application to GIS-based rock fall risk assessment

Détails

ID Serval
serval:BIB_C3B0B2FADA1F
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Regional deterministic characterization of fracture networks and its application to GIS-based rock fall risk assessment
Périodique
Engineering geology
Auteur(s)
Sturzenegger M., Sartori M., Jaboyedoff M., Stead D.
ISSN-L
0013-7952
Statut éditorial
Publié
Date de publication
2007
Peer-reviewed
Oui
Volume
94
Pages
201-214
Langue
anglais
Résumé
The study investigates the possibility to incorporate fracture intensity
and block geometry as spatially continuous parameters in GIS-based
systems. For this purpose, a deterministic method has been implemented
to estimate block size (Bloc3D) and joint frequency (COLTOP). In
addition to measuring the block size, the Bloc3D Method provides
a 3D representation of the shape of individual blocks. These two
methods were applied using field measurements (joint set orientation
and spacing) performed over a large field area, in the Swiss Alps.
This area is characterized by a complex geology, a number of different
rock masses and varying degrees of metamorphism. The spatial variability
of the parameters was evaluated with regard to lithology and major
faults. A model incorporating these measurements and observations
into a GIS system to assess the risk associated with rock falls is
proposed. The analysis concludes with a discussion on the feasibility
of such an application in regularly and irregularly jointed rock
masses, with persistent and impersistent discontinuities.
Mots-clé
block size, block shape, joint frequency, risk assessment, GIS, rock, fall
Création de la notice
25/11/2013 17:26
Dernière modification de la notice
03/03/2018 21:12
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