Terrestrial Laser Scanning: Application for Measuring of Structures Information in Geological Outcrops

Marcelo Kehl de Souza, Maurício Roberto Veronez, Francisco M. W. Tognoli, Luiz Gonzaga da Silveira Jr., Leonardo Campos Inocencio, Reginaldo Macedônio da Silva, Rudi César Comiotto Modena

Abstract


This study aimed to build a workflow to survey geological planar structure geometries using light detection and ranging technique. The study covered a field survey with the determinations of plane attitude using compass, clinometers, and digital images through light detection and ranging technique. Three methods were used to compute the selected planes into the point cloud, namely, three points, planar regression, and moment of inertia analysis. The methods were evaluated and compared with traditional methods of measurement (compass and clinometers). The evidence shows that the three-point method is quick and simple; however, it does not have any tool for quality analysis. Planar regression method proves to be effective and has tool for analyzing the degree of fit to the calculated plane. The Moment of Inertia provides degree of fit and reliability analysis to the calculated plane.


Keywords


LIDAR, Serra Geral Formation, Fracture Orientation

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*2016 Journal Impact Factor was established by dividing the number of articles published in 2014 and 2015 with the number of times they are cited in 2016 based on Google Scholar, Google Search and the Microsoft Academic Search. If ‘A’ is the total number of articles published in 2014 and 2015, and ‘B’ is the number of times these articles were cited in indexed publications during 2016 then, journal impact factor = A/B. To know More: (http://en.wikipedia.org/wiki/Impact_factor)