Classificação geomecânica de taludes dos cânios do rio Poty segundo os sistemas RQD, Q, RMR e SMR

Abstract

The stability of the canyon slopes of the Poty River is a critical factor, as their instability can lead to rockslides, endangering infrastructure, local populations, and the environment. This study assessed slope stability using the geomechanical methods RMR, Q-Barton, and SMR. The methodology included field surveys for geological and geotechnical characterization of the rock mass, laboratory tests to determine the physical and mechanical properties of the rocks, and the application of geomechanical classification systems to diagnose potential instabilities. The results indicated good stability conditions, with localized fractures and a low probability of failure (~0.2). The RMR classified the rock masses between good and fair quality, while the Q index identified the northern slope as poor quality, differing from the other methods. The SMR highlighted areas requiring continuous monitoring. As preventive measures, the installation of metallic meshes and periodic inspections are recommended to ensure safety and environmental preservation in the region.