Анализ устойчивости выработок в блочно-трещиноватом скальном массиве на руднике Боливар в Боливии

Analysis of workings stability in block and fracture rock mass at Bolivar mine, Bolivia

In order to demonstrate the stability factor of the workings in block and fracture rock mass the authors found the jointing parameters (the distances between different systems of fractures, fracture angles, opening and roughness of fracture surface), which were used for identification of potential- ly unstable blocks.