Influência das características de um maciço rochoso em sua classificação geomecânica

Abstract

This work presents the study of the influence of the characteristics of a rock mass Classification in geomechanics, through a theoretical approach, addressing the main types of Classification Systems, proposed by Deere - RQD (Rock Qualitiy Designation), Bieniawski - RMR (Rock Mass Rating) and Barton, Lien and Lundeem - Q (Q - System). However, the Classification of the Rock Mass collects only the information of the characteristics used by the system employed, thus requiring a characterization of these collections, emphasizing their physical, mineralogical composition and its discontinuities (orientation, spacing, persistence, roughness, aperture, and filling resistance of the walls). From the understanding of these characteristics we associate with other important aspects in determining the evaluation of massive, as the intensity of fracturing rock masses, and consequently the degree of modification, including, also, hydrogeological conditions existing in the Rock Mass.