Stabilization by geomorphic reclamation of a rotational landslide in an abandoned mine next to the Alto Tajo Natural Park

dc.contributor.authorZapico, Ignacio
dc.contributor.authorMolina, Antonio
dc.contributor.authorLaronne, Jonathan B.
dc.contributor.authorSánchez Castillo, Lázaro
dc.contributor.authorMartín Duque, José Francisco
dc.date.accessioned2023-06-17T13:37:50Z
dc.date.available2023-06-17T13:37:50Z
dc.date.issued2019-01
dc.description.abstractTwo abandoned kaolin mines, surrounding one of the most outstanding natural parks of Spain, the Alto Tajo, have caused frequent environmental impacts. Within these are unstable areas prone to extensive mass movements that influence off-site sediment dynamics over the fluvial system. A waste dump in the Nuria mine obstructing a stream in the center of a valley experienced a rotational landslide. Mass movement between 2012 and 2014 was 0.025–0.026 m day−1. To mitigate the high risk of an earthflow, a novel stabilizing surface drainage technique was implemented. Two remedial valleys designed with fluvial channels were constructed surrounding the landslide main body using natural landform design and regrading, with no need for artificial materials such as concrete or piles. This novel remediation process is generically termed geomorphic reclamation. The specific method applied to this site was GeoFluv with Natural Regrade software. Before (2014) and after geomorphic stabilization (2015–2017), the landslide was monitored using Digital Elevation Models (DEMs) of Difference (DODs) obtained by a Geomorphic Change Detection (GCD) tool. Two modern techniques, Terrestrial Laser Scanning (TLS), and, Structure from Motion photogrammetry combined with an Unmanned Aerial Vehicle (SfM-UAV), were used to acquire High-Resolution Topographies (HRTs) from which DEMs were derived. Data analysis and field monitoring results demonstrate that: i) the Nuria mine transformed almost 50% of the upper part of a natural catchment; ii) a waste dump active landslide with a surface rupture <15m posed a high-risk hazard due to its continuous advance; iii) geomorphic reclamation succeeded in stabilizing the landslide during the monitoring period; iv) SfM-UAV-based topographies offer better accuracy and higher resolution, are cheaper and are obtained faster than TLS for mine areas.
dc.description.departmentDepto. de Geodinámica, Estratigrafía y Paleontología
dc.description.facultyFac. de Ciencias Geológicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Ciencia e Innovación (MICINN)
dc.description.sponsorshipComunidad de Madrid
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/58621
dc.identifier.doi10.1016/j.enggeo.2019.105321
dc.identifier.issn0013-7952, ESSN: 1872-6917
dc.identifier.officialurlhttps://www.sciencedirect.com/science/article/pii/S001379521930482X
dc.identifier.relatedurlhttps://www.sciencedirect.com/
dc.identifier.urihttps://hdl.handle.net/20.500.14352/13884
dc.issue.number105321
dc.journal.titleEngineering Geology
dc.language.isoeng
dc.publisherElsevier
dc.relation.projectIDCGL2010-21754-C02- 01
dc.relation.projectIDREMEDINAL-3 (S2013/MAE-2719)
dc.rights.accessRightsrestricted access
dc.subject.cdu622:504
dc.subject.keywordGeomorphic reclamation
dc.subject.keywordLandslide stabilization
dc.subject.keywordAlto Tajo Natural Park
dc.subject.keywordSfM-UAVTLS
dc.subject.keywordGeomorphic change detection
dc.subject.ucmGeodinámica
dc.subject.unesco2507 Geofísica
dc.titleStabilization by geomorphic reclamation of a rotational landslide in an abandoned mine next to the Alto Tajo Natural Park
dc.typejournal article
dc.volume.number264
dspace.entity.typePublication
relation.isAuthorOfPublication5f95937a-47b9-498e-a16c-44228acedd90
relation.isAuthorOfPublication.latestForDiscovery5f95937a-47b9-498e-a16c-44228acedd90
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