GeoSmaGriR Geomechanical integrity of heat stores in mines
Numerical simulations to predict the geomechanical behavior of the subsurface in heat storage in mines.
The generic underground models for the Ruhr Carboniferous are transferred into numerical simulations based on the finite and advanced finite element method in order to take account of geological complexity. On the one hand, the expected temperature and pore pressure field around the injection point is simulated in large-scale models while on the other hand, changes in the stresses due to the thermal expansion of the rocks and the changed pore pressure are derived. From this, in turn, it is possible to locate elevations on the earth's surface and potentially geomechanical-critical areas in the 'Old Man' (decommissioned mine tunnel, which was not refilled properly) and the top layer and to derive the potential for the reactivation of existing fault zones or the formation of new ones. The first numerical models have been successfully tested. The interpretation of the results of fully coupled models is expected for the beginning of the second half of 2019.
Participating ruhrvalley partners
Information on funding and further project participants
Funding code: 13FHOKO1IA