Resumo

MUCUTA-LITO, Helder Vemba; CARTAYA-PIRES, Maday  e  CUNI-CALZADA, Julio. Rock mass geomechanical assessment on exploitation areas of Castellanos polymetallic deposit. Min. Geol. [online]. 2019, vol.35, n.4, pp. 430-440. ISSN 1993-8012.

The purpose of this study was to assess the geomechanical quality of the rock mass from Castellano polymetallic deposit in Pinar del Río province from the analysis of three mining fronts. DIP software V.6.0 was used when checking the jointing for determining the routes of main crack systems. 3D model of each front was obtained by using GEMCOM v 6.5. The quality of the solid was established based on RQD and RMR indices from Beniawski methodology. As a result, three families of predominant cracks and natural blocks of small sizes to medium with cubic, elongated and tabular shapes were identified, rock mass was generally classified as medium quality. The existence of slate rocks diminishes the geomechanical quality of the solid due to their characteristics.

Palavras-chave : geomechanical assessment; polymetallic; Castellanos deposit; opencast mining.

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