Mapeamento de risco/perigo de movimentos de massa e avaliação da estabilidade das encostas na comunidade São José do Jacó, em Natal/RN

• Autor(a) principal: Bezerra, Láddyla Thuanny Vital
• Data de Publicação: 2016
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UFRN
• Texto Completo: https://repositorio.ufrn.br/handle/123456789/40814
• topic: Análise de Risco, Perigo, Estabilidade, Talude, Movimento de massa; Risk Analysis, Hazard, Stability, Slope, Mass Movement

The process of slopes destabilization are among the most frequent event related to natural disasters, especially in urban areas occupied by settlements, slums and villages. In Natal - RN, the occurrence of relief areas with high declivity associated with inadequate human occupation are becoming the municipality vulnerable to slope stability problems. In this context, this study aimed to analyze and map the risk of mass movements and to quantify the stability of slopes adjacent to the São Jose do Jacó Community, in the Rocas neighborhood, Natal/RN. For mapping the risk, we applied the methodology proposed by Gusmão Filho et al. (1992), adapting the characteristics to the studied area. In order to compare and validate the results, also we applied it to Faria’s methodology (2011), which incorporates the Hierarchy Process Analysis (AHP) in the qualitative approach. It was also evaluated the slope stability by slope stability analysis using Fellenius, Bishop, Janbu and Morgenstern and Price methods, with the support of Slope/W program, produced by GeoStudio. The results of risk and hazards analysis showed that the area studied has exhibited degree of risk between High and Very High, representing the existence of a critical situation of risk for the resident population in Jacó, mainly refereeing the possibility landslides incidents that can cause social, economic and environmental damages, while the stability analysis pointed to a stable slope configuration in all studied sections.