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Past, present and future monitoring at the Vallcebre landslide (Eastern Pyrenees, Spain)

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Gili Ripoll, José AntonioMés informacióMés informacióMés informació
Corominas Dulcet, JordiMés informacióMés informació
Moya Sánchez, JoséMés informacióMés informacióMés informació
Crosetto, Michele
Montserrat, Oriol
Document typeArticle
Defense date2021-01
Rights accessOpen Access
Attribution 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution 3.0 Spain
ProjectEC-INTERREG EFA 364-19 PyrMove
Abstract
Works carried out to monitor the displacements of the Vallcebre landslide (Pyrenees range, NE of Spain) since 1987 are presented. The landslide, which extends over an area of about 0.8 km2 and affects more than 20 × 106 m3, has experienced displacements of up to one meter per year in some points and periods. It has been periodically monitored since 1987, using a wide range of surface and in-hole techniques: triangulation with theodolite, Terrestrial Photogrammetry, Electronic Distance Measurement, GNSS-GPS, inclinometers, wire extensometers, piezometers, DInSAR (satellite) and GBSAR (terrestrial). The results obtained using new techniques are compared with those obtained with GNSS-GPS and a wire extensometer, and checked against fixed stable points. From this comparison, we conclude that even though wire extensometers and inclinometers may have the highest precision, in practice, all systems play potentially valuable roles in providing meaningful data for monitoring at different study stages. In the near future, we envisage the installation of a Distributed Fiber Optic array to monitor the risk with a certain space and time continuity. After the evaluation of the precision and advantages of the different methods, the complementary use of some of them is strongly recommended.
CitationGili, J. [et al.]. Past, present and future monitoring at the Vallcebre landslide (Eastern Pyrenees, Spain). "Applied sciences", 2021, vol. 11, núm. 2, p. 571:1-571:22. 
URIhttp://hdl.handle.net/2117/342250
DOI10.3390/app11020571
ISSN1454-5101
Publisher versionhttps://www.mdpi.com/2076-3417/11/2/571
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  • Departament d'Enginyeria Civil i Ambiental - Articles de revista [2.851]
  • EnGeoModels - Monitoring and Modelling in Engineering Geology - Articles de revista [54]
  • EGEO - Enginyeria Geomàtica - Articles de revista [62]
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