Mapeamento geotécnico em talude rochoso da Cascata do Salso

Abstract

The Geological-Geotechnical Risk Analysis is an important tool for disaster risk management in urban areas, allowing the identification of vulnerable areas and enabling decision-making to prevent human and material losses. Based on this, the objective of this study was to perform a Geological-Geotechnical analysis on a rocky slope in the city of Caçapava do Sul/RS, within the Cascata do Salso Municipal Natural Park, aiming to identify its main characteristics, such as geological structures and processes. From the collected data, a digital model of the slope was generated, which provided indirect structural measurements. Alongside the measurements collected on-site, three main joint families were identified: subvertical joints with a high dip angle and horizontal joints, which offer favorable conditions for mass movement in the form of rockfalls. Therefore, mitigation actions against potential natural disasters are essential, including the installation of physical barriers on the slope, access site signage, the implementation of early warning systems, and the promotion of awareness and education initiatives for the local population.