INFLUENCE OF COUPLED THM PHENOMENA ON THE SAFETY OF A SPENT FUEL REPOSITORY: A NEAR-FIELD STUDY
In order to demonstrate the feasibility of geological disposal of spent CANDU fuel in Canada, a safety assessment was performed for a hypothetical repository in the Canadian Shield. The assessment shows that such repository would meet international criteria for dose rate; however, uncertainties in the assumed evolution of the repository were identified. Such uncertainties could be resolved by the consideration of coupled Thermal-Hydro-Mechanical-Chemical (THMC) processes. In Task A of the DECOVALEX-THMC project, THM models will be refined and used to perform near-field simulations of the evolution of the repository in order to address the above uncertainties. This paper presents the definition and rationale of Task A and the preliminary results.
T.S.Nguyen L.Borgesson M.Chijimatsu T.Fujita J.Hernelind P.Jussila J.Rutqvist L.Jing
Canadian Nuclear Safety Commission, Canada Clay Technology, Sweden Hazama Corporation, Japan Japan Atomic Energy Agency, Japan Helsinki University of Technology, Finland Lawrence Berkeley National Laboratory, USA Royal Institute of Technology, Sweden
国际会议
南京
英文
185-193
2006-05-22（万方平台首次上网日期，不代表论文的发表时间）