PT Unknown AU Nguyen Tuan, L Datcheva, M Schanz, T AU Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 07. bis 09.07. 2009, Bauhaus-Universität Weimar TI Numerical simulation and inverse analysis of thermo-hydro-mechanical behavoir of sand-bentonite mixture SE Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 07. bis 09.07.2009, Bauhaus-Universität Weimar PD July PY 2010 VL 18, 2009 DI 10.25643/bauhaus-universitaet.2876 WP https://www.db-thueringen.de/receive/dbt_mods_00037116 LA en DE Angewandte Informatik; Angewandte Mathematik; Architektur ; Computerunterstütztes Verfahren; Building Information Modeling SN 1611-4086 AB Sand-bentonite mixtures are well recognized as buffer and sealing material in nuclear waste repository constructions. The behaviour of compacted sand-bentonite mixture needs to be well understood in order to guarantee the safety and the efficiency of the barrier construction. This paper presents numerical simulations of swelling test and coupled thermo-hydro-mechanical (THM) test on compacted sand-bentonite mixture in order to reveal the influence of the temperature and hydraulic gradients on the distribution of temperature, mechanical stress and water content in such materials. Sensitivity analysis is carried out to identify the parameters which influence the most the response of the numerical model. Results of back analysis of the model parameters are reported and critically assessed. PI Weimar ER