ABSTRACT
The impact of an additional level for monitoring purposes in a repository for radioactive waste in rock salt mass is investigated. In order to be able to simulate the complex interactions of rock salt, crushed salt, salt concrete and the waste containers, multiphysical simulations were carried out based on a further development of the FLAC3D and TOUGH2 coupled simulator FTK 3.0 with a fully coupled consideration of the geomechanically repository system behavior. Based on the multiphysical simulations for a 1- and 2-level repository mine, difference plots for the dilatancy, porosity and equivalent stress were created, which show the spatial and temporal differences. On the basis of these difference plots, a first characterization of the spatial and temporal impact of an additional monitoring level was carried out.
