Safety of Nuclear Waste Disposal
Safety of Nuclear Waste Disposal
SaND
Articles | Volume 2
Articles | Volume 2
https://doi.org/10.5194/sand-2-65-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/sand-2-65-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 2
Conference Abstract
 | 
06 Sep 2023
Conference Abstract |  | 06 Sep 2023

On the influence of initial stress on final stress in data-calibrated numerical geomechanical models

Tobias Hergert, Steffen Ahlers, Luisa Röckel, Sophia Morawietz, Karsten Reiter, Moritz Ziegler, Birgit Müller, Oliver Heidbach, Frank Schilling, and Andreas Henk

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Short summary
In numerical geomechanical models, an initial stress state is established before displacement boundary conditions are applied in order to match calibration data. We present generic models to show that the choice of initial stress and boundary conditions affects the final state of stress in areas of the model domain where no stress data for calibration are available. These deviations are largest in the vicinity of lithological interfaces, and they can be reduced if more stress data exist.
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