MULTIPLE-CODE BENCHMARK SIMULATION STUDY OF COUPLED THMC PROCESSES IN THE EXCAVATION DISTURBED ZONE ASSOCIATED WITH GEOLOGICAL NUCLEAR WASTE REPOSITORIES
An international, multiple-code benchmark test (BMT) study is being conducted within the international DECOVALEX project to analyse coupled thermal, hydrological, mechanical and chemical (THMC) processes in the excavation disturbed zone (EDZ) around emplacement drifts of a nuclear waste repository. This BMT focuses on mechanical responses and long-term chemo-mechanical effects that may lead to changes in mechanical and hydrological properties in the EDZ. This includes time-de-pendent processes such as creep, and subcritical crack, or healing of fractures that might cause weakening or hardening of the rock over the long term. Five research teams are studying this BMT using a wide range of model approaches, including boundary element, finite element, and finite difference, particle mechanics, and elasto-plastic cellular automata methods. This paper describes the definition of the problem and preliminary simulation results for the initial model inception part, in which time dependent effects are not yet included.
J.Rutqvist E.Sonnenthal Y & Yamamoto X-T Feng J.Hudson L.Jing A.Kobayashi T.Koyama P-Z Pan H-S Lee M.Rinne
Lawrence Berkeley National Laboratory, Berkeley, U.S.A. Kyoto University, Kyoto, Japan Chinese Academy of Sciences, Wuhan430071, P.R.China Imperial College and Rock Engineering Consultants, UK Royal Institute of Technology, Sweden FRACOM Ltd and SK E&C, Seoul, Korea FRACOM Ltd, Kyrkslott, Finland
国际会议
南京
英文
194-199
2006-05-22（万方平台首次上网日期，不代表论文的发表时间）