Movimentos de massa nas encostas do Rio Soturno às margens da RS-149- Faxinal do Soturno, RS

Abstract

The movement of masses, also known as slippery, sliding, slope rupture, refers to movements descending from swamps and rocks due to the severity of gravity, generally aggravated by water action. In Brazil, this process is very common due to a high level of rain in some regions. However, like human activities, they aggravate this situation. Slope cuts, embankments, changes in coastal drainage and deforestation are examples of practices that accelerate this process of mass movement and make vulnerable coastal areas, as is the case in the study area of this work. Having in mind these aspects, the main objective of this work is to study and understand the movements of masses that occur and can circulate along the edge of the Soturno river, the RS-149 rails, the main access route between the municipalities. of São Paul. . . Nova Palma and Faxinal do Soturno, in the central region of Rio Grande do Sul. On the coast, the study carried out, it is found that it is covered by colluvial material, and shows signs of movement with more ancient features. Su sustrato y la favoración de peludo de la Formación Caturrita y la Formación Botucatu. The work continues with the geological analysis of the area, carried out through the geological map, with the analysis of satellite images and previous studies, seeking to understand the process in a period of years, and for the first time evaluation tests were carried out. direct. Try to understand the resistance parameters of the materials not connected to the earth present. It has been found that, for many years, in the region of rupture, mass movements have occurred that have been cataloged as traces, movements that have transformed the topography, directly affecting the drainage system of the surrounding waters along the coast. The resistance parameters obtained through the direct Indian analysis tests that the stone presents a great heterogeneity in its characteristics, such as granulometry, cementations and composition. Everything indicates that hubo averia for several factors. Firstly, this is the geological context of the site, which gives it a favorable condition for these movements, since the site is ubiquitous on the contact between rocks of sedimentary origin, in addition to being in a fall zone. Furthermore, the drainage system of the truck is not sufficient for the demand for water, which contributes to local instability.