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Report No.

Applicability study of numerical analysis for coupled mechanical and hydrological processes by drift excavation (Contract research)

Yamamoto, Nobuyuki; Iwano, Keita*; Namikawa, Tadashi*; Morikawa, Seiji*; Seno, Shoji*; Tabei, Kazuto*; Toida, Masaru*; Yokota, Hideharu

This study reconsiders rock's mechanical and hydrological parameters based on additional ${it in-situ}$ data given in this year, and conducts the mechanical-hydrological analysis using the Micromechanics-Based Continuum (MBC) model which can consider the behavior of fracture. The acquired analysis results are compared with actual test data such as drift convergence and hydraulic pressure around the drift. Then, following knowledge is obtained.



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