Estabilidade de taludes por meio de análise cinemática e classificação de maciços rochosos ao longo da rodovia Governador Mário Covas (BR 101), município de São Sebastião - SP

• Autor(a) principal: Severino, Pedro Rafael Aporta [UNESP]
• Data de Publicação: 2016
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/155439; http://www.athena.biblioteca.unesp.br/exlibris/bd/capelo/2017-06-05/000883459.pdf
• topic: Mecânica do solo; Mecânica de rochas; Taludes em rocha; Soil mechanics; Rodovia Governador Mário Covas; São Sebastião (SP)

This study focuses on using the kinematic analysis and mass classification methods to investigate points that have geotechnical problems and can generate accidents along the highway Governador Mario Covas (BR 101) between km 115 and 121, at the city of São Sebastião - SP. The kinematic analysis and the geomechanical classifications of rock masses are important tools for understanding the structure and the geotechnical behavior of the rock in relation to the constructions and mining, such as tunneling, galleries, highways and excavations. These tools should be used in the early stages of projects to complement the investigation, providing essential information to resolve problems in the future. However, they are also used in later stages, being helpful in maintaining and containment of the structures, especially on highways where the flow of people and products is high and the problems in case of accidents can be huge. Thus, when the geotechnical problems are identified from the beginning, the works to contain are simple and economic, differently from when there is an accident that involves interdiction area, traffic disruption, removal of the materials, in addition to personal injury and property damage. This study was based on the mass classification methods basic RMR and Q-system, the kinematic analysis, and the degree of rock fracturing. The field area shows geologic and geotechnical characteristics that alow the division of area into two portions (North and South), being the North part with main potential to planar and wedge sliding, and the South part to rockfall. Some points need a special attention, as those shown a bigger alteration degree of the rock and soil sliding. The geothecnical problems found can be resolved by containment measures, as anchored wall, rockfall drape, attenuator barriers, soil nailing, and crib wall