Special Issue "Rock Fall Hazard and Risk Assessment"
Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 21591
Interests: rock mechanics and engineering; engineering geology; rock fall hazard and risk assessment; rock wall retreat; failure mechanisms leading to rock falls
Interests: natural hazards and risks
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The quantification of rockfall hazard and risk is becoming increasingly necessary for decision makers. It requires that onset probability (or frequency) and propagation of rockfalls, and the vulnerability and values of the elements at risk, be quantified.
Depending on the scale considered and the funds available, different approaches and methods can be used for rockfall hazard assessment. Concerning the onset of rockfalls, two approaches can be used: in the diffuse hazard approach, it is supposed that rockfalls can occur everywhere in a homogenous rock wall and their temporal frequency must be assessed; in the located hazard approach, the fall-prone rock compartments must be identified and their failure probabilities in a given period must be estimated. Different approaches also exist for studying rockfall propagation, including approaches based on energy angle or on the simulation of trajectories.
Due to our poor quantitative knowledge of the evolution processes, rockfall frequency and probability have long been difficult to assess quantitatively, but the development of remote sensing and of systematic historical inventories has enabled advances in this field. On the other hand, progress in numerical analyses enables one to take into account the fragmentation of the initial compartments or/and the interaction between the individual rock elements.
This Special Issue is aimed at collecting all research developments related to rockfall hazard and risk assessment for existing rock walls and providing a comprehensive update of the state of the art.
Dr. Didier Hantz
Prof. Michel Jaboyedoff
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