Speaker
Anne Gehrke
Description
This presentation describes the generation of a discrete fracture network (DFN) model for the Äspö Hard Rock Laboratory based on geological and structural data published by SKB. A three‑dimensional geological model derived from SKB site descriptive reports provides the structural framework for DFN construction. Fracture sets are generated consistently with this model and used to derive an equivalent porous medium for groundwater flow simulations with the code d3f++. The contribution focuses on the modelling workflow and on challenges arising from the complex geological geometry and its impact on DFN generation.