Retroanálise de escorregamento de talude em solo residual de gnaisse – Estudo de caso km 133+500 sul da rodovia RJ-116

• Autor(a) principal: Andrade, Marina Lopes de
• Data de Publicação: 2021
• Outros Autores: [e-mail]
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UERJ
• Texto Completo: http://www.bdtd.uerj.br/handle/1/17390
• topic: Civil engineering; Landslides (Geology); Slopes (Soil mechanics) - Stability; Soil mechanics; Engenharia civil; Deslizamentos (Geologia); Taludes (Mecânica do solo) - Estabilidade; Mecânica do solo; ENGENHARIAS::ENGENHARIA CIVIL::GEOTECNICA

Landslides is a topic that prompts interest and requires study and understanding of its mechanism. The work presents the study of the causes of a landslide of large proportions that mobilized a deep surface rupture of approximately 160 m of length. A lifting of the edge of the RJ116 highway, in the municipality of Macuco/RJ, was a result of it as well as the appearance of tensions cracks in the highest part of the slope. The main objective of this research was to understand the failure mechanism. The slope was instrumented with piezometers and inclinometers, which even after the rupture, indicated the trend of continuous movement. Back-analyses of the slope were performed with a commercial program, based on the Limit Equilibrium Method (LEM). Some stabilization solutions were also evaluated such as soil nails and grouted tiebacks. The grouted tiebacks showed a better efficiency in the improvement of the stability of the slope.