Abstract:
The use of digital imaging techniques in geology is a current trend. This study intends to point a method to investigate the slope stability in rock masses trough images obtained by a terrester laser scanning system. Its application to the geotechnical uses is relatively incipient. The frst stage of the study verifed the applicability of the technique and its limitations. The object of the study was the Saivá mine, located in the city of Rio Branco do Sul, Paraná State, a pertaining calcareous rock deposit for cement manufacture. The analysis method involved feld surveys, identifcation and measurement of geologic structures in three-dimensional digital image, elaboration of structural diagrams, classifcation of the rock mass, and analysis of the slope stability properly said. The results show that the tool may achieve accurate measurements of rupture plans, similar to the feld measurements. Another advantage is that the method permits to work with large number of information simultaneously. One of the great advantages of the method is the possibility of getting structural parameters of areas that in feld do not have direct access, for security or setting problems, for example.
Keywords:
Slope stability; Rock masses; Terrester laser scanning