INTEGRATED APPROACH FOR ESTABLISHING OF DISPOSAL SYSTEMS FOR HIGHLY ACTIVATED WASTE

摘要

The disposal method of highly activated wastes (HAW) is still under discussion inrnJapan. The preliminary results for the conceptual design of the disposal system for HAW werernreported [1]. Three types of repository, tunnel type, underground silo type and opencut silorntype, were designed. The safety analysis, the estimation of construction costs and the study ofrnconstruction period of each designed repository were performed to investigate the safe andrnreasonable disposal system for HAW. The results indicate that HAW could be disposed ofrnsafely in all types of repository, and that especially the tunnel type repository with the largerncross section would be the most preferable repository for the disposal of HAW.