放射性廃棄物処分 (1)

[CS12-02] Long-term analysis of geo-environmental behavior of rock mass around a drift in the Horonobe Underground Research Laboratory; Part 1: Overview and a long-term mechanical analysis

*Mitsuo GOHKE¹, Mitsunobu OKIHARA¹, Satohito TOGURI¹, Hiroya MATSUI², Yusuke OZAKI², Akihito MOCHIZUKI², Tsuneyuki MAEMURA³, Ryo ITOU³ (1. Shimizu Corporation, 2. Japan Atomic Energy Agency, 3. Dia Consultants Co., Ltd.)

Keywords:high-level radioactive waste, retrievability, geo-environment, excavation damaged zone, creep, two-phase flow analysis