3D analysis of a fragmental rockfall
Visualitza/Obre
10.1007/978-3-030-60706-7_15
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/376319
Tipus de documentText en actes de congrés
Data publicació2021
EditorSpringer Nature
Condicions d'accésAccés obert
Tots els drets reservats. Aquesta obra està protegida pels drets de propietat intel·lectual i
industrial corresponents. Sense perjudici de les exempcions legals existents, queda prohibida la seva
reproducció, distribució, comunicació pública o transformació sense l'autorització del titular dels drets
Abstract
Fragmentation in a rockfall event influence the total number of fragments, the mass distribution, and the impact energies and runouts. Then, the probability of impact and hazard characterization should consider fragmentation. A fractal fragmentation model has been proposed in order to reproduce the phenomenon. The Rockfall Fractal Fragmentation Model has been implemented in a 3D rockfall propagation simulator named RockGIS. We present the analysis of a fragmental rockfall that occurred in Mallorca, Spain. Fieldworks are carried out in order to obtain the block size distribution of the rockfall deposit. A 3D terrain model is obtained using UAV surveys and digital photogrammetric techniques. The obtained 3D point cloud is cleaned of vegetation and used to create a Digital Elevation Model (DEM). The fragmentation model parameters and the propagation simulator coefficients have been calibrated to accomplish both, the resultant block size distribution and the runout distance of the blocks. The obtained results show a good reproduction of the fragmental rockfall studied. After the calibration is accomplished, older and future rockfalls in the cliff may be analyzed, considering thousands or single blocks simulations with or without fragmentation.
Descripció
The final authenticated version is
available online at https://doi.org/10.1007/978-3-030-60706-7_15.
CitacióRuiz-Carulla, R. [et al.]. 3D analysis of a fragmental rockfall. A: World Landslide Forum. "Understanding and reducing landslide disaster Risk. Volume 4: Testing, modeling and risk assessment". Springer Nature, 2021, p. 187-194. ISBN 978-3-030-60706-7. DOI 10.1007/978-3-030-60706-7_15.
ISBN978-3-030-60706-7
Versió de l'editorhttps://link.springer.com/chapter/10.1007/978-3-030-60706-7_15
Col·leccions
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
34865013.pdf | 1,867Mb | Visualitza/Obre |