(GRS 431) Groundwater Flow at the Prototype Repository - Task 8e of SKB

The Task Force on Groundwater Flow and Transport of Solutes (TF GWFTS) and the Task Force on Engineered Barrier Systems (TF EBS), both established by the Svensk Kärnbränslehantering AB (SKB), have defined the so-called Task 8 to investigate the hydraulic interaction of the granitic host rock at the Hard Rock Laboratory at Äspö and the bentonite clay buffer in a deep geological repository. Subtasks 8 a-d ran parallel to the related BRIE-project (Bentonite Rock Interaction Experiment) at the Äspö Hard Rock Laboratory (HRL). These subtasks lead to a variety of predictive models with respect to flow in a buffer-rock system on the comparatively small scale of the BRIE. Task 8e related to the Prototype Repository (PR) was therefore subsequently defined in order to check these concepts on a much larger scale and under the additional influence of temperature.