Analise de estabilidade do maciço rochoso da Mineração Casa de Pedra, Congonhas, Minas Gerais / Slope stability analysis of the Mineração Casa de Pedra, Congonhas, MG, Brasil rock mass

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

This work presents the study of the rock mass stability at the Mineração Casa de Pedra , Minas Gerais, using kinematic analisys and maps in 1:4000 scale. The geological structures, the friction angle and cohesion of the rock mass were evaluated through a geological geotecnical mapping technique. Data collected from each bench of the mine were relateded with the rock mass classification RMR and tables were compilled with them. Geotecnical maps were then plotted with the software ArcView. The rock mass classification along with the uniaxial compressive strength estimated in the field were used to determine the shear strength of the rock mass with the software RocLab by Rocscience. The friction angle in each zone, considered as homogeneous field, was used in the kinematic analisys and divisions were done in each mine pit as a function of the major feature and the wall orientation. With the results, the zones could be identified as susceptible or not susceptible to sliding

ASSUNTO(S)

cinematica mecanica de rochas - classificação kinematic analysis resistencia de materiais rock mass classification shear streght movimentos mecanicos

ACESSO AO ARTIGO

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