| Popis: |
For the deep lying, trans boundary Brenner Base Tunnel several packer tests have been carried out in deep boreholes for a hydrogeological characterisation of metamorphic rocks. For permeability testing (expected range from K = 10−7 to 10−12m/s) Pulse-, Slug-, Drill stem and active flow tests were applied. Due to the importance of the hydraulic parameters for the technical design of the tunnel system and the environmental risk assessment, the testing results were methodologically verified. The verification method and the final result of the evaluation are shown. Calibrate numerical models of built tunnel sections are used to validate the hydraulic testing results, first experiences and results in a granite tunnel section are shown. |
