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dc.contributor.authorHussain, Yawar
dc.contributor.authorCardenas-Soto, Martin
dc.contributor.authorMoreira, César
dc.contributor.authorRodriguez-Rebolledo, Juan
dc.contributor.authorHamza, Omar
dc.contributor.authorPrado, Renato
dc.contributor.authorMartinez-Carvajal, Hernan
dc.contributor.authorDou, Jie
dc.date.accessioned2020-08-21T15:14:33Z
dc.date.available2020-08-21T15:14:33Z
dc.date.issued2020-04-01
dc.identifier.citationHussain Y., Cardenas-Soto, M. Moreira, C., Rodriguez-Rebolledo, J., Hamza, O., Prado, R., Martinez-Carvajal, H., Dou, J. (2020). 'Variation in rayleigh wave ellipticity as a possible indicator of earthflow mobility: a case study of Sobradinho landslide compared with pile load testing'. Earth Sciences Research Journal, 24(2), 141-151.en_US
dc.identifier.issn1794-6190
dc.identifier.doi10.15446/esrj.v24n2.81974
dc.identifier.urihttp://hdl.handle.net/10545/625109
dc.description.abstractRainfall-induced landslides pose a significant risk to communities and infrastructures. To improve the prediction of such events, it is imperative to adequately investigate the rainfall-dependent dynamics (leading to fluidization) and any associated internal sliding along shear planes within clayey slopes. Therefore, the present study adopted ambient noise analysis based on the Horizontal to Vertical Spectral Ratio (HVSR) method, to measure the seasonal variation of Rayleigh wave ellipticity as an indicator for the internal deformation and transition in the material state. The methodology was applied to an existing landslide, where variations in soil stiffness and internal sliding were expected to occur in response to rainfall. To improve the interpretation of the HVSR results (and hence the prediction of landslide’ reactivation by rainfall), HVSR measurements were also conducted on a field-scale pile load test. The pile test allowed a comparison of the seismic data generated by the soil movement along shear planes. The HVSR curves of this field test showed two frequency peaks with no changes in the resonance. In comparison with the data obtained from the landslide, the resultant HVSR curves showed three frequency patterns: ubiquitous (2Hz), landslide (4-8Hz), and flat (no peak). However, the HVSR curves did not show any response to the expected seasonally induced variations in the landslide mass because of the relatively short data acquisition. Nevertheless, time-lapse HVSR is a promising technique that can complement other geophysical methods for improving landslide monitoring.en_US
dc.description.sponsorshipThe National Council for Scientific and Technological Development (CNPq), the Federal District Foundation (FAP-DF), the University of Brasilia and, the Pool of Brazilian Equipments (PegBr), Rio de Janeiro.en_US
dc.language.isoenen_US
dc.publisherUniversidad Nacional de Colombiaen_US
dc.relation.urlhttps://doi.org/10.15446/esrj.v24n2.81974en_US
dc.rightsCC0 1.0 Universal*
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/*
dc.subjectGeneral Earth and Planetary Sciencesen_US
dc.subjectambient noiseen_US
dc.subjectHVSRen_US
dc.subjectreactivationen_US
dc.subjectstiffnessen_US
dc.subjectsoil mechanicsen_US
dc.titleVariation in Rayleigh wave ellipticity as a possible indicator of earthflow mobility: a case study of Sobradinho landslide compared with pile load testingen_US
dc.typeArticleen_US
dc.identifier.eissn2339-3459
dc.contributor.departmentClemson University (USA)en_US
dc.contributor.departmentUniversidad Nacional Autónoma de Méxicoen_US
dc.contributor.departmentUniversidade Estadual Paulista (Brazil)en_US
dc.contributor.departmentUniversidade de Brasília (Brazil)en_US
dc.contributor.departmentUniversity of Derby (UK)en_US
dc.contributor.departmentUniversity of Sao Paulo (Brazil)en_US
dc.contributor.departmentUniversidad Nacional de Colombia (Colombia)en_US
dc.contributor.departmentNagaoka University of Technology (Japan)en_US
dc.identifier.journalEarth Sciences Research Journalen_US
dc.source.journaltitleEarth Sciences Research Journal
dc.source.volume24
dc.source.issue2
dc.source.beginpage141
dc.source.endpage151
dcterms.dateAccepted2020-03-27
refterms.dateFOA2020-08-21T15:14:33Z
dc.author.detail784461en_US


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CC0 1.0 Universal
Except where otherwise noted, this item's license is described as CC0 1.0 Universal