Studies on the Performance Guarantee for the Engineered Barrier System on Geological Disposal of High-Level Radiactive Waste(Vol.2)

Sugita, Yutaka ; Kurihara, Yuji; Kawakami, Susumu; Jintoku, Takashi; Yui, Mikazu

In order to contribute to the safety standards and guidelines upon which a governmental administration decide, examination for clarifying how to reflect the result obtained by future R&D was performed. From a view point of long-term safety on geological disposal, the items which should guarantee the performance of each element which constitutes disposal institutions (by this report, they are the backfill, the plug, the tunnel, and the pit) were extracted, and it was shown what a performance guarantee is concretely offered about these items. Furthermore, based on H12 report as a situation of present R&D for a method of a performance guarantee, the subjects considered that a future R&D is required were extracted.