ABSTRACT
The Austrian Society of Geomechanics (ÖGG 2001) recommended a procedure for the geomechanical design both at design and construction stage. At the design stage for the evaluation of the potential rock mass behavior, rock mass types and local influencing factors including the relative orientation of relevant discontinuities to the excavation are considered. Relative orientation of the underground structure and discontinuities are used as a basis for kinematical analyses and the influence of the rock mass structure on the stress redistribution are evaluated.
