Modeling of Coupled Thermo-Hydro-Mechanical-Chemical Processes for High-Level Radioactive Waste Repositories - 17361

Conference · Sat Jul 01 04:00:00 EDT 2017

OSTI ID:22802384

Lin, Wen-Sheng; Suu-Yan, Liang ^[1]; Liu, Chen-Wuing ^[2]

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1. Hydrotech Research Institute, National Taiwan University, Taiwan, ROC (China)
2. Department of Bioenvironmental Systems Engineering, National Taiwan University, Taiwan, ROC (China)

To ensure that multi-barrier systems in high-level radioactive waste (HLW) repositories can efficiently perform their functions and isolate the waste from the biosphere, coupled thermo-hydro-mechanical-chemical (THMC) processes used for the performance assessment of HLW disposal facilities should be modeled. To evaluate coupled THMC processes, the DECOVALEX project, a unique international research collaboration project initiated in 1992, developed mathematical models and field experiments involving THMC processes in engineered barrier systems and host rocks for HLW disposal. The DECOVALEX project and the current status of coupled THMC model development can provide further insights into the performance assessment of HLW disposal facilities. This study provides information regarding the DECOVALEX project and reviews the development of coupled THMC models. The study results furnish knowledge of coupled THMC processes and techniques for the performance assessment and safety analysis of the final HLW disposal. (authors)

• Research Organization: WM Symposia, Inc., PO Box 27646, 85285-7646 Tempe, AZ (United States)
• OSTI ID: 22802384
• Report Number(s): INIS-US--19-WM-17361
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
HIGH-LEVEL RADIOACTIVE WASTES
MATHEMATICAL MODELS
RADIOACTIVE WASTE DISPOSAL
SAFETY ANALYSIS
SIMULATION