Rapid characterisation of the extremely large landslide threatening the Rules Reservoir (Southern Spain)

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Title: Rapid characterisation of the extremely large landslide threatening the Rules Reservoir (Southern Spain)
Authors: Reyes-Carmona, Cristina | Galve, Jorge Pedro | Moreno-Sánchez, Marcos | Riquelme, Adrián | Ruano, Patricia | Millares, Agustín | Teixidó, Teresa | Sarro, Roberto | Pérez-Peña, José Vicente | Barra, Anna | Ezquerro Martín, Pablo | López-Vinielles, Juan | Béjar Pizarro, Marta | Azañón, José Miguel | Monserrat, Oriol | Mateos, Rosa María
Research Group/s: Ingeniería del Terreno y sus Estructuras (InTerEs)
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Civil
Keywords: Landslide | Reservoir | Quick characterisation | Geological data | Multi-technique monitoring | InSAR | SfM | GPR
Knowledge Area: Ingeniería del Terreno
Issue Date: 29-Sep-2021
Publisher: Springer Nature
Citation: Landslides. 2021, 18: 3781-3798. https://doi.org/10.1007/s10346-021-01728-z
Abstract: When an active landslide is first identified in an artificial reservoir, a comprehensive study has to be quickly conducted to analyse the possible hazard that it may represent to such a critical infrastructure. This paper presents the case of the El Arrecife Landslide, located in a slope of the Rules Reservoir (Southern Spain), as an example of geological and motion data integration for elaborating a preliminary hazard assessment. For this purpose, a field survey was carried out to define the kinematics of the landslide: translational in favour of a specific foliation set, and rotational at the foot of the landslide. A possible failure surface has been proposed, as well as an estimation of the volume of the landslide: 14.7 million m3. At the same time, remote sensing and geophysical techniques were applied to obtain historical displacement rates. A mean subsidence rate of the landslide around 2 cm/year was obtained by means of synthetic aperture radar interferometry (InSAR) and ground-penetrating radar (GPR) data, during the last 5 and 22 years, respectively. The structure-from-motion (SfM) technique provided a rate up to 26 cm/year during the last 14 years of a slag heap located within the foot of the landslide, due to compaction of the anthropical deposits. All of this collected information will be valuable to optimise the planning of future monitoring surveys (i.e. differential global positioning systems, inclinometers, ground drilling, and InSAR) that should be applied in order to prevent further damage on the reservoir and related infrastructures.
Sponsor: This work was mainly supported by the European Regional Development Fund (ERDF) through the project “RISKCOAST” (SOE3/P4/E0868) of the Interreg SUDOE Programme. The work of J.P.G., M.M-S., P.R. and J.M.A. was also supported by the “Ramón y Cajal” Programme (RYC-2017–23335) of the Spanish Ministry of Science, the project “MORPHOMED”—PID2019-107138RB-I00 / SRA (State Research Agency / https://doi.org/10.13039/501100011033) and the project “RADANDALUS” (P18-RT-3632) and B-RNM-305-UGR1818 of the FEDER / Junta de Andalucía-Consejería de Transformación Económica, Industria, Conocimiento y Universidades.
URI: http://hdl.handle.net/10045/118377
ISSN: 1612-510X (Print) | 1612-5118 (Online)
DOI: 10.1007/s10346-021-01728-z
Language: eng
Type: info:eu-repo/semantics/article
Rights: © Springer-Verlag GmbH Germany, part of Springer Nature 2021
Peer Review: si
Publisher version: https://doi.org/10.1007/s10346-021-01728-z
Appears in Collections:INV - INTERES - Artículos de Revistas

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