Fracture Network Modeling and GoldSim Simulation Support

Yoshizoe, Makoto*; Dershowitz, W.*

The Japanese nuclear waste management program made significant advances during Heisei-13. Golder Associates provided support for these efforts through research support to the MIU Underground Rock Laboratory and the Aspo Task Force on Modeling of Groundwater Flow and Transport. Golder Associates also assisted JNC in development of approaches for analysis and modeling of the rock of the nearfield disturbed rock zone on repository safety using the GoldSim repository safety assessment system. Major achievements during Heisei-13 included: ・ initial integrated discrete fracture network/continuum model for the MIU site ・ integration of site characterization and performance assessment approaches (Aspo Task 6) ・ GoldSim cell network model for the very near field repository rock Technical information about Golder Associates HY-13 support to JNC/Tokai is provided in the appendices to this report.