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    Multiple geophysical techniques for investigation and monitoring of sobradinho landslide, Brazil

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    Authors
    Hussain, Yawar
    Cardenas-Soto, Martin
    Martino, Salvatore
    Moreira, Cesar
    Borges, Welitom
    Hamza, Omar
    Prado, Renato
    Uagoda, Rogerio
    Rodríguez-Rebolledo, Juan
    Silva, Rafeal
    Martinez-Carvajal, Hernan
    Show allShow less
    Affiliation
    University of Derby
    University of Brasilia
    Clemson University
    University of Mexico
    ational University of Colombia at Medellin
    São Paulo University
    Issue Date
    2019-11-26
    
    Metadata
    Show full item record
    Abstract
    Geophysical methods have a varying degree of potential for detailed characterization of landslides and their dynamics. In this study, the application of four well-established seismic-based geophysical techniques, namely Ambient Noise Interferometry (ANI), Horizontal to Vertical Spectral Ratio (HVSR), Multi-Channel Analysis of Surface Waves (MASW) and Nanoseismic Monitoring (NM), were considered to examine their suitability for landslide characterization and monitoring the effect of seasonal variation on slope mass. Furthermore, other methods such as Ground Penetrating Radar (GPR) and DC Resistivity through Electrical Resistivity Tomography (ERT) were also used for comparison purpose. The advantages and limitations of these multiple techniques were exemplified by a case study conducted on Sobradinho landslide in Brazil. The study revealed that the geophysical characterization of the landslide using traditional techniques (i.e., GPR, ERT and MASW) were successful in (i) the differentiation between landslide debris and other Quaternary deposits, and (ii) the delineation of the landslide sliding surface. However, the innovative seismic based techniques, particularly ambient noise based (HVSR and ANI) and emitted seismic based (NM), were not very effective for the dynamic monitoring of landslide, which might be attributed to the short-time duration of the data acquisition campaigns. The HVSR was also unsuccessful in landslide site characterization i.e., identification of geometry and sliding surface. In particular, there was no clear evidence of the light seasonal variations, which could have been potentially detected from the physical parameters during the (short-time) ambient noise and microseismic acquisition campaigns. Nevertheless, the experienced integration of these geophysical techniques may provide a promising tool for future applications
    Citation
    Hussain, Y., Cardenas-Soto, M., Martino, S., Moreira, C., Borges, W., Hamza, O., Prado, R., Uagoda, R., Rodríguez-Rebolledo, J., Silva, R. and Martinez-Carvajal, H., (2019). 'Multiple geophysical techniques for investigation and monitoring of sobradinho Landslide, Brazil'. Sustainability, 11(23), pp. 1-18. DOI: 10.3390/su11236672
    Publisher
    MDPI AG
    Journal
    Sustainability
    URI
    http://hdl.handle.net/10545/624328
    DOI
    10.3390/su11236672
    Additional Links
    https://www.mdpi.com/2071-1050/11/23/6672/htm
    Type
    Article
    Language
    en
    ISSN
    2071-1050
    ae974a485f413a2113503eed53cd6c53
    10.3390/su11236672
    Scopus Count
    Collections
    Department of Mechanical Engineering & the Built Environment

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