Rockfall Simulation Based on UAV Photogrammetry Data Obtained during an Emergency Declaration: Application at a Cultural Heritage Site

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Títol: Rockfall Simulation Based on UAV Photogrammetry Data Obtained during an Emergency Declaration: Application at a Cultural Heritage Site
Autors: Sarro, Roberto | Riquelme, Adrián | García-Davalillo, Juan Carlos | Mateos, Rosa María | Tomás, Roberto | Pastor Navarro, José Luis | Cano, Miguel | Herrera García, Gerardo
Grups d'investigació o GITE: Ingeniería del Terreno y sus Estructuras (InTerEs)
Centre, Departament o Servei: Universidad de Alicante. Departamento de Ingeniería Civil
Paraules clau: Rockfall | Unmanned aerial vehicle (UAV) | 3D point cloud (3DPC) | SfM | 3D modeling | Cultural heritage
Àrees de coneixement: Ingeniería del Terreno
Data de publicació: 30-de novembre-2018
Editor: MDPI
Citació bibliogràfica: Sarro R, Riquelme A, García-Davalillo JC, Mateos RM, Tomás R, Pastor JL, Cano M, Herrera G. Rockfall Simulation Based on UAV Photogrammetry Data Obtained during an Emergency Declaration: Application at a Cultural Heritage Site. Remote Sensing. 2018; 10(12):1923. doi:10.3390/rs10121923
Resum: In recent years, there was an increasing number of studies focusing on rockfalls due to their impacts on social and sustainable development. This work carries out a three-dimensional (3D) simulation of rockfalls at a cultural heritage site nearby the village of Cortes de Pallás (Valencian Community, East Spain). The simulation is based on data collected previously, during an emergency declaration due to the occurrence of a considerable rockfall (7980 m3) on the southern bank of the Cortes de Pallás reservoir, on 6 April 2015. The hydroelectric power plant was damaged, and the main access road to the village of Cortes de Pallás was blocked for eight months. The predominant discontinuities of the rock mass were analyzed by means of the application of structure from motion (SfM) photogrammetry techniques to the set of images taken by remotely piloted aircraft systems (RPAS). The average size of the block was determined as 3.2 m in diameter and 17.6 m3 in volume. Additionally, a digital elevation model (DEM) was generated from an aerial laser scanning (ALS)-derived point cloud using a 1 × 1 grid. These data were implemented in RocPro3D software, obtaining the distances traveled by the blocks detached from different source areas at a cultural heritage site located near the rockfall event, which presents the same geological context. The simulation presented herein shows aggravating circumstances that endanger the cultural heritage area, with higher rockfall hazards than previous official studies (1991) displayed.
Patrocinadors: This work was funded by the European Commission, Directorate General Humanitarian Aid and Civil Protection (ECHO), through the project “SAFETY (Sentinel-1 for geohazard prevention and forecasting)” (Ref. ECHO/SUB/2015/718679/Prev02). This work was partially funded by the University of Alicante (vigrob-157 Project, GRE14-04 and GRE15-19 Project), the Spanish Ministry of Economy, Industry and Competitiveness (MINECO), the State Agency of Research (AEI), and the European Funds for Regional Development (FEDER) under projects TEC2017-85244-C2-1-P and TIN2014-55413-C2-2-P.
URI: http://hdl.handle.net/10045/84433
ISSN: 2072-4292
DOI: 10.3390/rs10121923
Idioma: eng
Tipus: info:eu-repo/semantics/article
Drets: © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Revisió científica: si
Versió de l'editor: https://doi.org/10.3390/rs10121923
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