Water content evolution in the EDZ of Opalinus Clay: A methodic approach for a comparative interpretation of measurements and modelling

G Ziefle, T Cajuhi, S Costabel, M Furche… - Rock Mechanics and …, 2024 - Springer
Abstract In the Mont Terri Rock Laboratory (Switzerland), an interdisciplinary examination
program is carried out to increase knowledge about coupled hydro-mechanical effects in …

Benchmarking a new TH2M implementation in OGS-6 with regard to processes relevant for nuclear waste disposal

M Pitz, N Grunwald, B Graupner, K Kurgyis… - Environmental Earth …, 2023 - Springer
In this paper, thermo-hydro-mechanically (THM) coupled processes triggered during the
construction, operation and closure of a deep geological repository for heat generating, high …

Uncertainties and robustness with regard to the safety of a repository for high-level radioactive waste: introduction of a research initiative

K Kurgyis, P Achtziger-Zupančič, M Bjorge… - Environmental Earth …, 2024 - Springer
Abstract The Federal Company for Radioactive Waste Disposal (BGE mbH) is tasked with
the selection of a site for a high-level radioactive waste repository in Germany in accordance …

Design-of-Experiment (DoE) based history matching for probabilistic integrity analysis—A case study of the FE-experiment at Mont Terri

J Buchwald, O Kolditz, T Nagel - Reliability Engineering & System Safety, 2024 - Elsevier
We present an application of design-of-experiment (DoE) based history matching as an
approach to reduce and investigate parameter uncertainties in finite-element models for …

Modeling desiccation cracks in Opalinus Clay at field scale with the phase-field approach

T Cajuhi, G Ziefle, J Maßmann, T Nagel… - InterPore …, 2024 - ipjournal.interpore.org
Geological materials such as Opalinus Clay show complex coupled hydro-mechanical
behavior at laboratory and field scales. In the context of radioactive waste disposal, in-situ …

[HTML][HTML] The value of simplified models of radionuclide transport for the safety assessment of nuclear waste repositories: A benchmark study

P Selzer, H Shao, C Behrens, C Lehmann… - Journal of Contaminant …, 2024 - Elsevier
In order to assess sites for a deep geological repository for storing high-level nuclear waste
safely in Germany, various numerical models and tools will be in use. For their interaction …

On Multi-Component Gas Migration in Single-Phase Systems

M Pitz, E Jacops, N Grunwald, G Ziefle… - Rock Mechanics and Rock …, 2024 - Springer
The present work deals with diffusion of gases in fully saturated porous media. We test and
validate the gas transport mechanism of dissolution and diffusion, implemented in the TH2M …

A numerical analysis of Thermo–Hydro–Mechanical behavior in the FE experiment at Mont Terri URL: Investigating capillary effects in bentonite on the disposal …

T Kim, CH Park, C Lee, JS Kim, ES Park… - … for Energy and the …, 2024 - Elsevier
We investigated thermo–hydro–mechanical (TH–M) coupled behavior observed during the
full-scale heater emplacement experiment at the Mont-Terri underground research …

[PDF][PDF] Hydro-Mechanical Effects and Cracking in Opalinus Clay

T Cajuhi, N Haghighat, J Maßmann… - … in Geosystems From …, 2023 - library.oapen.org
8 T. Cajuhi et al. approaches. In Sect. 2.2, we present a short overview concerning the
Opalinus Clay (OPA) formation, its behavior and applications. This potential host rock for …

[PDF][PDF] Increasing process understanding in gas migration: investigations using the TH2M modelling approach

V Kumar, G Ziefle, J Maßmann - 1st Caprock Integrity & Gas …, 2024 - researchgate.net
A sound understanding of gas production and movement in argillaceous rock is key to
estimating the safety of the enclosure and efficiency of argillaceous barrier systems …