GeomInt: geomechanical integrity of host and barrier rocks-experiments, models and analysis of discontinuities
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in: Environmental Earth Sciences, Jahrgang 80.2021, Nr. 16, 509, 07.08.2021.
Publikationen: Beitrag in Fachzeitschrift › Artikel › Forschung › (peer-reviewed)
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T1 - GeomInt: geomechanical integrity of host and barrier rocks-experiments, models and analysis of discontinuities
AU - Kolditz, Olaf
AU - Fischer, Thomas
AU - Frühwirt, Thomas
AU - Görke, Uwe-Jens
AU - Helbig, Carolin
AU - Konietzky, Heinz
AU - Maßmann, Jobst
AU - Nest, Mathias
AU - Pötschke, Daniel
AU - Rink, Karsten
AU - Sattari, Am Ir
AU - Schmidt, Patrick
AU - Steeb, Holger
AU - Wuttke, Frank
AU - Yoshioka, Keita
AU - Vowinckel, Bernhard
AU - Ziefle, Gesa
AU - Nagel, Thomas
PY - 2021/8/7
Y1 - 2021/8/7
N2 - The present paper gives an overview of the GeomInt project “Geomechanical integrity of host and barrier rocks—experiment, modelling and analysis of discontinuities” which has been conducted from 2017–2020 within the framework of the “Geo:N Geosciences for Sustainability” program. The research concept of the collaborative project is briefly introduced followed by a summary of the most important outcomes. The research concept puts geological discontinuities into the centre of investigations—as these belong to the most interesting and critical elements for any subsurface utilisation. Thus, while research questions are specific, they bear relevance to a wide range of applications. The specific research is thus integrated into a generic concept in order to make the results more generally applicable and transferable. The generic part includes a variety of conceptual approaches and their numerical realisations for describing the evolution of discontinuities in the most important types of barrier rocks. An explicit validation concept for the generic framework was developed and realised by specific “model-experiment-exercises” (MEX) which combined experiments and models in a systematic way from the very beginning. 16 MEX have been developed which cover a wide range of fundamental fracturing mechanisms, i.e. swelling/shrinkage, fluid percolation, and stress redistribution processes. The progress in model development is also demonstrated by field-scale applications, e.g. in the analysis and design of experiments in underground research laboratories in Opalinus Clay (URL Mont Terri, Switzerland) and salt rock (research mine Springen, Germany).
AB - The present paper gives an overview of the GeomInt project “Geomechanical integrity of host and barrier rocks—experiment, modelling and analysis of discontinuities” which has been conducted from 2017–2020 within the framework of the “Geo:N Geosciences for Sustainability” program. The research concept of the collaborative project is briefly introduced followed by a summary of the most important outcomes. The research concept puts geological discontinuities into the centre of investigations—as these belong to the most interesting and critical elements for any subsurface utilisation. Thus, while research questions are specific, they bear relevance to a wide range of applications. The specific research is thus integrated into a generic concept in order to make the results more generally applicable and transferable. The generic part includes a variety of conceptual approaches and their numerical realisations for describing the evolution of discontinuities in the most important types of barrier rocks. An explicit validation concept for the generic framework was developed and realised by specific “model-experiment-exercises” (MEX) which combined experiments and models in a systematic way from the very beginning. 16 MEX have been developed which cover a wide range of fundamental fracturing mechanisms, i.e. swelling/shrinkage, fluid percolation, and stress redistribution processes. The progress in model development is also demonstrated by field-scale applications, e.g. in the analysis and design of experiments in underground research laboratories in Opalinus Clay (URL Mont Terri, Switzerland) and salt rock (research mine Springen, Germany).
KW - GeomInt
KW - Fracture flow
KW - Fracture mechanics
KW - Barrier integrity
KW - Discontinuities
KW - Open source
KW - OpenGeoSys
U2 - 10.1007/s12665-021-09787-0
DO - 10.1007/s12665-021-09787-0
M3 - Article
VL - 80.2021
JO - Environmental Earth Sciences
JF - Environmental Earth Sciences
SN - 1866-6280
IS - 16
M1 - 509
ER -