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

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.