Impact load transmission within a half scale sandwich rockfall protection wall

A. Heymann (1) , P. Gotteland (2) , Stéphane Lambert (1)

1 UR ETGR (ETNA) - Érosion torrentielle, neige et avalanches
2 3SR - Laboratoire sols, solides, structures - risques [Grenoble]

This contribution presents experiments on cellular sandwich rockfall protection structure. Such structures constitute innovative developments aiming at using the cellular technology, classical in the field of civil engineering, for rockfall protection. In order to explore the mechanical behavior of these systems under dynamic loadings, impact experiments are performed and a numerical model of the structure is developed. The experiments consist of the impact by a 260 kg spherical projectile on a structure composed of gabion cages filled with coarse materials in the front part and fine materials in the kernel part. This structure stands against a rigid concrete wall. In a first time, the methods and results are presented focusing on the transmission of the load (stress) in the impact direction.

Mots clés: CHUTE DE PIERRES; STRUCTURE DE PROTECTION; PERTE DE CHARGE; RESISTANCE MECANIQUE

Domaines: Ingénierie de l'environnement

A. Heymann, P. Gotteland, Stéphane Lambert. Impact load transmission within a half scale sandwich rockfall protection wall. Third Euro Mediterranean Symposium on Advances in Geomaterials ans Structures (AGS 2010), May 2010, Djerba, Tunisia. p. 331 - p. 336. ⟨hal-00523396⟩