A Study of methodology and it's applications for the evaluation of total system performance which considered the site-information and the design-information

Inagaki, Manabu; Ebina, Takanori*

The step-by-step progress for which a detailed investigation area(s) is chosen from the preliminary investigations area(s) in the volunteer sites is assumed on the high-level radioactive waste disposal in Japan. It's necessary to select an appropriate detailed investigation area from the preliminary investigation area, therefore, it's needed to combine the design options which have been assumed on the generic geological environment with the information of a limited investigation from the surface in the preliminary investigation area for evaluating the total performance of the investigation site. Requirements in the detailed investigation area are not only long term stability of geological environment but also stability of the engineered barrier system on influence by a flow of groundwater in major water conducting fracture, the correspondence by a site-design and the performance of the total system as a selection important matter in a detailed investigation area. I thought it was rational to build the scenario used by geological survey information, design situation and performance evaluations, the scenario which causes a model and data when combining geological information and design option as the early stage condition, and the frame able to make the model difference clear and feed this back to a design and a geological survey at the generic environment bottom considered up to now for it.