検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

地層処分場の操業システムに関する検討

Operation system concept for high-level radioactive wastes disposal facility

本間 信之*; 千葉 恭彦*; 棚井 憲治 

not registered; not registered; Tanai, Kenji

本報では、地層処分の技術的成立性を明らかにするため、処分場の操業段階におけるガラス固化体の受け入れから人工バリア定置までの作業の具体的な方法について工学的な検討を実施した結果を報告する。まず、検討を行ううえで必要となるいくつかの前提条件を提示し、次に地上施設、アクセス施設、地下施設の区分で各施設における作業の内容と手順について検討した。さらに、各工程で必要となる具体的な機器、設備、および配置、系列数について検討し、各施設の概念を示した。これらをもとに実際の操業にかかる時間について検討した。また、操業段階で想定される事故事象をまとめ、既存の原子力関連施設を参考に放射線管理の考え方についても整理を行った。最後に今後検討されるべき課題をまとめた。

This paper reports on the evaluations of operational activities for a High Level Radioactive Wastes Disposal Facility, from initial acceptance of vitrified waste at a surface facility to emplacement engineered barriers in underground facilities. The purpose of this analysis is to confirm the technical feasibility of geological disposal. First, the basic design and repository system requirements are identified. Second, operational activities in surface facilities, access facilities and underground facilities are described. The required procedures and equipment, suitable for specific emplacement concepts and configurations for engineered barrier systems are discussed for specific examples. Countermeasures for potential adverse events or conditions are based on extensive civil engineering and mining experiences in Japan and abroad. The time schedule is also evaluated on the basis of these concepts. In addition, the concept of stationary and mobile radiation control areas is studied based on experiences and practice in current nuclear facilities. Finally future research and development items are summarized.

Access

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.