Extração semiautomática da orientação de descontinuidades com modelo tridimensional de taludes obtido por fotogrametria digital

Abstract

In this work, a method is applied to obtain the values of the dip and dip direction of the discontinuities in slopes of a limestone mining company, without the use of compasses and any kind of surveys near areas susceptible to risk, and lastly the kinematic analyzes that deal with the potential of rupture of the benches in question. Digital photogrammetry and specific software for data processing were used as tools. The main motivation is the use of new technologies to perform tasks that are traditionally manual, arduous and time-consuming, with attractive cost and simplified access. Two slopes with different structures were selected, of which the images were acquired in two dimensions. The images were processed to obtain three-dimensional models from which the values of the orientations of 3 discontinuities were extracted for the first slope and 44 for the second. The results confirm the feasibility and success of the methodology and the generated diagrams tend to confirm this, since they corroborate with technical observations made in the field as well as in the 3D models themselves.