Articles | Volume 8, issue 2
https://doi.org/10.5194/se-8-291-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/se-8-291-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
09 Mar 2017
Research article |
| 09 Mar 2017
Deformation in cemented mudrock (Callovo–Oxfordian Clay) by microcracking, granular flow and phyllosilicate plasticity: insights from triaxial deformation, broad ion beam polishing and scanning electron microscopy
Guillaume Desbois
CORRESPONDING AUTHOR
Structural Geology, Tectonics and Geomechanics, RWTH Aachen University, Lochnerstrasse 4–20, 52056 Aachen, Germany
Nadine Höhne
Structural Geology, Tectonics and Geomechanics, RWTH Aachen University, Lochnerstrasse 4–20, 52056 Aachen, Germany
Janos L. Urai
Structural Geology, Tectonics and Geomechanics, RWTH Aachen University, Lochnerstrasse 4–20, 52056 Aachen, Germany
Pierre Bésuelle
Univ. Grenoble Alpes, CNRS, Grenoble INP, 3SR, 1270 Rue de la Piscine, 38610 Gières, France
Gioacchino Viggiani
Univ. Grenoble Alpes, CNRS, Grenoble INP, 3SR, 1270 Rue de la Piscine, 38610 Gières, France
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- Détermination de la taille et du nombre d’échantillons devant être analysés en laboratoire pour la caractérisation statistique de la microstructure d’une roche argileuse A. Fauchille et al. 10.1051/geotech/2020024
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- Numerical analysis and application of stress corrosion model considering strain softening X. Wang et al. 10.1007/s40571-024-00775-2
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- Neutron imaging for geomechanics: A review A. Tengattini et al. 10.1016/j.gete.2020.100206
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- High sedimentation rates and thrust fault modulation: Insights from ocean drilling offshore the St. Elias Mountains, southern Alaska L. Worthington et al. 10.1016/j.epsl.2017.11.041
- Digital Volume Correlation Applied to X-ray Micro-Tomography Images in Uniaxial Creep Tests on Anisotropic Clayey Rock H. Shi et al. 10.3390/app10144898
- 3D Modelling of Excavation-Induced Anisotropic Responses of Deep Drifts at the Meuse/Haute-Marne URL M. Souley et al. 10.1007/s00603-022-02841-8
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- Modelling the creep behaviour and induced failure of clay rock from microscale viscosity to large-scale time-dependant gallery convergences using a multiscale numerical approach Y. Sun et al. 10.1016/j.compgeo.2023.105691
- Dynamics of Water Absorption in Callovo-Oxfordian Claystone Revealed With Multimodal X-Ray and Neutron Tomography E. Stavropoulou et al. 10.3389/feart.2020.00006
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- A Regularised Anisotropic Elastoplastic Damage and Viscoplastic Model and Its Hydromechanical Application to a Meuse/Haute-Marne URL Drift M. Souley et al. 10.1007/s00603-023-03563-1
- Review of major shale-dominated detachment and thrust characteristics in the diagenetic zone: Part II, rock mechanics and microscopic scale C. Morley et al. 10.1016/j.earscirev.2017.09.015
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- 3D Simulations of gas injection on callovo-oxfordian claystone assuming spatial heterogeneity and anisotropy I. Damians et al. 10.1016/j.ijrmms.2022.105232
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- Modelling the multiscale behaviour of claystone: deformation, rupture, and hydro-mechanical phenomena around underground galleries B. Pardoen et al. 10.1051/e3sconf/202020510003
- Experimental and Theoretical Study on the Creep Behavior of a Clayey Rock H. Yu et al. 10.1007/s00603-022-03146-6
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Discussed (final revised paper)
Latest update: 20 Nov 2024
Short summary
This work integrates measurements of the mechanical and transport properties with microstructures to understand deformation mechanisms in cemented mudrock. Cataclastic mechanisms are dominant down to nanometre scale. At low strain the fabric contains recognizable open fractures, while at high strain the reworked clay gouge shows resealing of initial fracture porosity. In the future, it will provide a microphysical basis for constitutive models to improve their extrapolation for long timescales.
This work integrates measurements of the mechanical and transport properties with...
