Conference Abstract
| 
06 Sep 2023
Conference Abstract |
| 06 Sep 2023
| 06 Sep 2023
Cross-scale perspective on the Opalinus Clay: insights from the GeomInt2 project
Geotechnical Safety Analyses, Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Hanover, Germany
Jobst Maßmann
Geotechnical Safety Analyses, Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Hanover, Germany
Gesa Ziefle
Geotechnical Safety Analyses, Bundesanstalt für Geowissenschaften und Rohstoffe (BGR), Hanover, Germany
Thomas Nagel
Petroleum and Geothermal Energy Recovery, Technische Universität Bergakademie Freiberg, Freiberg, Germany
Keita Yoshioka
Soil Mechanics and Foundation Engineering, Montanuniversität Leoben, Leoben, Austria
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This contribution aims at showing the basic, practical steps for numerical modeling with focus on the preparation and interpretation of the models and results, e.g. model calibration, verification and validation. We study the Opalinus Clay and perform laboratory and field scale simulations related to nearly the same mechanism, e.g. drying/wetting, shrinkage/swelling and cracking. We simulate the long-term Cyclic Deformation (CD-A) experiment in the Mont Terri Rock Laboratory.
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Understanding complex systems such as radioactive waste repositories involves the study of cross-scale coupled processes. We discuss some important concepts and their mutual interactions for interpreting such systems based on complementary model-based analyses at various scales. One goal statement is to explain the formation of drying cracks. Near-field understanding can be used to determine how detailed repository far-field models must be and can lead to more robust analysis results.
Understanding complex systems such as radioactive waste repositories involves the study of...
