WATER PERMEABILITY OF ROCK MASS

The presence of water in the rock masses, or water filtering, has an important role in theconstruction of engineering facilities (dams, tunnels, ...), as well as in formation of rockslopes, caused by the implementation of various projects. The rock mass, that we find innature (in-situ), is heterogeneous, anisotropic, jointed and is in the natural state of stress.On numerical modeling of planned geotechnical project, in addition to other inputparameters, it is necessary, as more precisely, to define the water permeability of the rockmass. The paper describes the mechanisms of water flow through the rock mass and themethodology for defining the waterpermeability parameter of such a geologicalenvironment.