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Characterization of underground rock masses employing structure from motion: Application to a real case

Año:2019

Áreas de investigación

Datos

Descripción
We propose an inexpensive and easy-to-use methodology for remote characteriza-tion of underground rock masses at the tunnel face. The method is based on the joint use of the Structure from Motion (SfM) photogrammetric technique and a Discontinuity Set Extractor (DSE) software, in which a high-density 3D point cloud is created using a commercial SfM software (Agisoft PhotoScan). To maintain the real features of the tunnel face, such digital model must be orientated and scaled; therefore, a ?portable orientation template? is employed. The point cloud is then introduced in DSE, where discontinuity orientation data are ?extracted? and analyzed to identify joint sets. The measurements obtained with the SfM + DSE approach have been compared with those obtained with a traditional analysis based on manual compass measurements. Both techniques identify the same number of discontinuity sets with orientation differences within the uncertainty range associated to manual measurements.
Internacional	Si
Nombre congreso	WTC19 Tunnels and Underground Cities: Engineering and Innovation meet Archaeology, Architecture and Art
Tipo de participación	960
Lugar del congreso	Nápoles (Italia)
Revisores	Si
ISBN o ISSN	9780429424441
DOI	10.1201/9780429424441-88
Fecha inicio congreso	03/05/2019
Fecha fin congreso	09/05/2019
Desde la página	1
Hasta la página	10
Título de las actas	In book: Tunnels and Underground Cities: Engineering and Innovation meet Archaeology, Architecture and Art

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