Description of work
The modelling work performed within this workpackage will focus on the following topics:
- Investigation of the thermal impact on EDZ
- Investigation of possible additional damage due to thermal load
- Transition between brittle and visco-plastic behaviour due to thermal loading
- Difference between continuum modelling and discrete element modelling
Different codes will be evaluated by participation in Benchmark exercises for modelling of THM processes in clays. The benchmark should allow to assess the influence of the constitutive laws on the long term and large scale predictions, and to see if different modelling teams using different codes and/or constitutive laws could obtain similar predictions.
The workpackage is divided in three tasks:
Task1: Benchmark 1: laboratory experiments modelling
The benchmark 1 consists in modelling the simulation tests performed in laboratory (sub-workpackage 3.3). The following table summarises the participation of the partners in the benchmark exercises:
Partner 1 2 4 5 6 7 8 9 10 12
WP3.3 simulation test on BC x x x x x x x
WP3.3 simulation test on OC x x x x x x x
WP3.3 simulation test on COC x x x x x x x x
BC: Boom Clay – OC: Opalinus Clay – COC: Callovo-Oxfordian Argilitte
Task 2: Benchmark 2: small scale in-situ experiments modelling
The benchmark 2 consists in modelling the small scale in situ tests performed in sub-workpackage 4.2.
The following table summarises the participation of the partners in the benchmark exercises:
Partner 1 2 4 5 6 7 8 9 10 12
Mt. Terri experiment x x x x
Atlas experiment x x x x
Task 3: Blind prediction of the PRACLAY experiment
This task consists mainly in, using different codes, blind prediction of the large scale heater test PRACALY experiment. The predictive modelling results of the PRACLAY experiment will be assessed with comparison to measured data. Models can be improved by back-calculations in a second phase.
The following table summarises the aspects on which the partners will focuses:
Partner 1 2 4 5 6 7 8 9 10 12
THM x x x x x x x
Localisation x x
Sealing x
C x
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