Have you ever considered using 3D modelling for rockfall hazard assessment?
RocPro3D
June 15th, 2024
3D modelling for rockfall hazard assessment has many advantages:
- Block trajectories are calculated on a real 3D topography
- Lateral block deviation is taken into account when calculating trajectories,
- Modelling results are not dependent on a choice of 2D profiles (e.g. based on "expert's opinion"),
- You don't need to simulate multiple 2D profiles: a single 3D simulation allows you to model the entire site,
- Hazard assessment and protection dimensioning are based on the complete set of trajectories calculated in 3D.
- The results of these 3D models are spatially visualised at the site level in trajectories or map form, making the results intuitive to understand and analyse. The real world is 3D, not 2D.
Impacts
The impact map shows the spatial distribution of block impacts with ground. It can be compared with possible impact traces observed in the field.
Stopping points
The stop map shows the end position of the trajectories. It can be compared with observed blocks in the field.
Probability of propagation
The propagation probability map allows identifying preferential block propagation corridors at site level.
Probability of propagation classes
The map of propagation probability classes provides a mapping of the P(propag) map into hazard classes, allowing to identify the areas exposed to rockfall hazard levels. Either user-defined classes (e.g. industrial hazard) or MEZAP methodology (2022) classes can be used.
