Estudo comparativo entre os métodos de levantamento fotogramétrico (VANT) e topográfico (estação total) para cálculo de volume em uma mineração

Abstract

Mining is an activity of great importance to the country's economy, accounting for almost 5% of GDP (Gross Domestic Product) generated. Among the several steps involved, there is the calculation of volumes, essential to obtain reserve estimates, control over mine operations and quantity produced. Based on this need, the present work aims to generate a database to calculate volumes in ore stacks in a more agile time. For this, photogrammetric techniques were applied through images obtained with Unmanned Aerial Vehicle (VANT) and Topografica with data collection with Total Station. In view of these new technologies, the objective of this study is to compare the methods of photogrammetric survey (VANT) and Topographic (TOTAL STATION) to calculate the volume of batteries in a Mining area located in the municipality of Atalaia, state of Alagoas. It was possible to produce the trueortophotomosaico and Digital Terrain Model (DTM). Based on this information were generated orthophotographs, one of the whole area and another with detail of the sandbank on which the volume was calculated. Comparing the methods with respect to the volumes, a difference of 2.5% between the calculated through the database obtained with VANT and the Total Station was obtained. We emphasize that the most agile and fast method is the field survey done with the VANT.