Modelling the Bohemian Earthquake Swarms: Application of a poro-thermo-elastic plastic model with weakening, damage and multiphase flow in GPU
Final Report Abstract
We developed a number of numerical tools for investigating fluid rock interactions and including heat flow. We compared our model results with experiments, and found good agreement for most observations, including stress-strain curves under cyclic loading, comparisons with measured acoustic emissions and our numerical analogues. We investigated the consequences of using mass scaling in the explicit formulation of mechanical deformation, and found that numerical hardening occurs for high levels of mass scaling. The models developed were then applied to the overall objective of this work, namely to try and model the Bohemian swarms. We also extended our modelling effort to investigate the very important problem of fluid-injection for extracting geothermal heat and power, a potentially important renewable energy resource for the future.
Publications
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(2015), A new method to estimate location and slip of simulated rock failure events. Tectonophysics, 651-652, 35-43
Heinze, T., B. Galvan, and S. A. Miller
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(2015), Modeling porous rock fracturing induced by fluid injection. International Journal of Rock Mechanics & Mining Sciences, 77, 133-141
Heinze, T., B. Galvan, and S. A. Miller
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(2016), Systematic study of the effects of mass and time scaling techniques applied in numerical rock mechanics simulations, Tectonophysics, 684, 4-11
Heinze, T., G. Jansen, B. Galvan, and S. A. Miller
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(2017), A dynamic heat transfer coefficient between fractured rock and flowing fluid, Geothermics, 65, 10-16
Heinze, T., S. Hamidi, and B. Galvan
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(2017), Numerical simulation of the 2008 West-Bohemian earthquake swarm, Tectonophysics, 694, 436-443
Heinze, T., S. Hamidi, B. Galvan, and S. A. Miller
