Rockfall dynamics: a critical review of collision and rebound models
Résumé
Computer-based rockfall trajectory simulation codes now constitute a routine engineering tool for the assessment of rockfall hazards. However, the correct use of this tool is tricky due to the complexity of the interaction processes between the falling rocks and the slope surface. This chapter focuses on the modeling of impact and rebound of rock fragments on the slope surface. Other movement modes such as rolling, sliding and trajectory flight are not discussed here. In this chapter, the physical processes of collision and rebound of rock fragments will be initially described. Secondly, various approaches to model this process will be reviewed, by focusing on their advantages and limitations.