Thermal-hydraulic-mechanical behavior of bentonite and sand-bentonite materials as seal for a nuclear waste repository: Numerical simulation of column experiments

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• 作者：E. Ballarini^a ; ^{ballarin@gpi.uni-kiel.de} ; B. Graupner^b ; S. Bauer^a
• 关键词：High-level radioactive waste ; Buffer material ; Column experiments ; Numerical model ; THM simulation
• 刊名：Applied Clay Science
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：135
• 期：Complete
• 页码：289-299
• 全文大小：1994 K
• 卷排序：135

文摘

The design of deep geological repositories requires buffer materials around the canister. A fully coupled and process-oriented numerical model was applied to simulate column experiments. A sensitivity analysis was performed to identify the most important parameters. A unique set of thermal parameters for the insulation materials of the two experiments can be identified. The most important parameters are: permeability, water retention curve and thermal conductivity.