Estabilidade de talude com efeito sísmico a partir dos métodos de equilíbrio limite e de elementos finitos.

• Autor(a) principal: Mejía, José Luis Leiva
• Data de Publicação: 2015
• 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/1/11593
• topic: Civil Engineering; Slope Stability; Limit Equilibrium; Finite Element; Earthquakes; Dynamic Analysis; Engenharia Civil; Estabilidade de Talude; Equilíbrio Limite; Elementos Finitos; Análise Dinâmica; Atividade Sísmica; CNPQ::ENGENHARIAS::ENGENHARIA CIVIL

The Peruvian coast has high seismic activity, making essential the implementation of stability analyzes that consider the seismic events. With the development of new numerical tools, dynamic analysis is becoming increasingly important and usual in the design phase is not justified over the execution of static analysis in places as vulnerable to earthquakes. This thesis aims to conduct the analysis of the stability of the cliffs of Lima, Peru, considering for different slopes, in a region highly affected by earthquakes. The analyzes were performed by equilibrium methods limit finite elements and pseudo-static, seeking a comparison between the different methods. The dissertation presents a complete description of the slopes in the study, an evaluation of the seismic condition of the region and finally the stability of Lima cliffs, making use of computer programs Slide (limit equilibrium method) and Plaxis (finite element method). The results showed that all three methods provided adopted gave safety factors, especially when considering less laminated profiles. For homogeneous profiles, obtained differences were of the order of 1.0 at 0.5%. The analysis highlighted the importance of considering the dynamic condition, and were quite sensitive to seismic load values adopted.