Study for establishment of the methodology for hydrogeological modeling using hydraulic discrete fracture networks (Study on hydrogeology in crystalline fractured rock)

Ando, Kenichi*; Tanaka, Tatsuya*; Hashimoto, Shuji*; Saegusa, Hiromitsu; Onoe, Hironori 

In this study, water conducting features in Toki granite were defined by the interpretation and integration of geological and hydrogeological data obtained from the borehole investigation in the Phase I of the MIU Project and Regional Hydrogeological Study. Then, the hydrogeological model of Block scale was constructed using hydraulic discrete fracture networks, and equivalent hydraulic conductivities in Block scale were calculated. And, adequacy of equivalent hydraulic conductivities in Block scale was confirmed using result of hydraulic packer tests.