Comparison of two DEM modeling of flexible rockfall fences under dynamic impact

Loïc Dugelas (1) , Jibril Coulibaly (1) , Franck Bourrier (1) , Ignacio Olmedo (2) , Marie-Aurélie Chanut (3) , Stéphane Lambert (4) , François Nicot (4)

1 IRSTEA - Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture
2 Géotechnique et travaux spéciaux
3 Cerema Direction Centre-Est - Centre d'Etudes et d'Expertise sur les Risques, l'Environnement, la Mobilité et l'Aménagement - Direction Centre-Est
4 UR ETGR (ETNA) - Erosion torrentielle neige et avalanches

Flexible fences are efficient and cost-effective rockfall protection structures, but their complex response to impact remains difficult to predict. Models based on a discrete element method (DEM) of rock impact on a flexible fence are developed for a better understanding of the dynamic response of the structure under impact. Two of these models are introduced and compared in this paper.

Mots clés: rockfall; fences; DEM; models; impact; comparison

Domaines: Structures

Loïc Dugelas, Jibril Coulibaly, Franck Bourrier, Ignacio Olmedo, Marie-Aurélie Chanut, et al.. Comparison of two DEM modeling of flexible rockfall fences under dynamic impact. Rock slope stability, Nov 2018, Chambéry, France. ⟨hal-01997731⟩