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- Material Type
- 規格・テクニカルリポート類
- Author/Editor
- 柴田 雅博澤田 淳舘 幸男牧野 仁史若杉 圭一郎三ツ井 誠一郎北村 暁吉川 英樹小田 治恵石寺 孝充陶山 忠宏畑中 耕一郎仙波 毅瀬尾 俊弘亀井 玄人黒澤 進後藤 淳一澁谷 早苗後藤 考裕窪田 茂稲垣 学守屋 俊文鈴木 覚石田 圭輔西尾 光牧内 秋恵藤原 啓司
- Publication Date
- 2015-03
- Publication Date (W3CDTF)
- 2015
- Alternative Title
- Enhancement of the methodology of repository design and post-closure performance assessment for preliminary investigation stage, 3; Progress report on NUMO-JAEA collaborative research in FY2013 (Joint research)
- Periodical title
- JAEA-Research 2014-030
- Target Audience
- 一般
- Note (General)
- 出版タイプ: NA原子力機構(JAEA)がこれまで蓄積してきた技術やノウハウを、原子力発電環境整備機構(NUMO)が今後行う精密調査地区の選定等の処分事業に適用できるよう、実施主体の視点に沿って実用化を図っていくための具体的な考え方と進め方を策定すること等を目的として、2011年度よりJAEAとNUMOは以下の3つのテーマについて共同研究を進めている。(1)水理の観点からみた母岩の適性を評価する方法に関する検討: 水理地質構造モデル構築手法の事例調査に基づいて、得られた知見を評価ツリーとして整理し、モデルの不確実性やそれらの評価項目への影響等についての検討を行った。(2)シナリオの構築方法に関する検討: 状態設定手順を実務的な観点から、さらに見直すとともに、セメント影響とガラス溶解挙動について、知見の体系的な整理と不確実性の影響について解析的検討を行った。(3)核種移行パラメータの設定方法に関する検討: 母岩の分配係数を対象に、国内外の事例調査をもとに複数の設定手法を整理し、堆積岩及び花崗岩への適用を通じ妥当性や課題を確認した。溶解度について、溶解度制限固相の決定を含む設定手法を検討し、主要核種への適用を通じ妥当性や課題を確認した。JAEA and NUMO have conducted a collaborative research work which is designed to enhance the methodology of repository design and post-closure performance assessment in preliminary investigation stage. With regard to (1) study on rock suitability in terms of hydrology, based on some examples of developing method of hydro-geological structure model, acquired knowledge are arranged using the tree diagram, and model uncertainty and its influence on the evaluation items were discussed. With regard to (2) study on scenario development, the developed approach for "defining conditions" has been reevaluated and improved from practical viewpoints. In addition, the uncertainty evaluation for the effect of use of cementitious material, as well as glass dissolution model, was conducted with analytical evaluation. With regard to (3) study on setting radionuclide migration parameters, based on survey of precedent procedures, multiple-approach for distribution coefficient of rocks was established, and the adequacy of the approach was confirmed though its application to sedimentary rock and granitic rock. Besides, an approach for solubility setting was developed including the procedure of selection of solubility limiting solid phase. The adequacy of the approach was confirmed though its application to key radionuclides.
- Source
- /JAEA-Research-2014-030.pdf (fulltext)