"What-if?" calculations to illustrate fault-movement effects on a HLW repository

What if解析による地層処分システムに及ぼす断層活動の影響評価

宮原 要  ; 稲垣 学; 川村 淳; 蛯名 貴憲*

Miyahara, Kaname; Inagaki, Manabu; Kawamura, Makoto; Ebina, Takanori*

What if解析についてどのような想定とするかなどをわかりやすく示すため、断層シナリオを対象として、解析の一連の手順について解析とともに例示する。

This paper illustrated how to conduct "what if?" calculations in a transparent manner based on a developed formal procedure in order to treat perturbations of disruptive fault movement on a HLW disposal system. Calculation cases are defined due to stepwise combination of loss of key safety functions as what if? assumptions. The calculation results show effectiveness and robustness of the multibarrier system, even considering the most extreme combination of what if assumptions.