Articles | Volume 12, issue 7
https://doi.org/10.5194/se-12-1581-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-12-1581-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
13 Jul 2021
Research article |
| 13 Jul 2021
| 13 Jul 2021
Mechanical and hydraulic properties of the excavation damaged zone (EDZ) in the Opalinus Clay of the Mont Terri rock laboratory, Switzerland
Karlsruhe Institute of Technology (KIT), Institute of Applied
Geosciences (AGW), Kaiserstr. 12, 76131 Karlsruhe, Germany
Xavier Ries
Karlsruhe Institute of Technology (KIT), Institute of Applied
Geosciences (AGW), Kaiserstr. 12, 76131 Karlsruhe, Germany
David Jaeggi
Federal Office of Topography (swisstopo), Seftigenstr. 264, 3084
Wabern, Switzerland
Philipp Blum
Karlsruhe Institute of Technology (KIT), Institute of Applied
Geosciences (AGW), Kaiserstr. 12, 76131 Karlsruhe, Germany
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Cited
17 citations as recorded by crossref.
- Self-sealing of fractures in indurated claystones measured by water and gas flow C. Zhang & J. Talandier https://doi.org/10.1016/j.jrmge.2022.01.014
- Hydro-mechanical-chemical effects on flow properties of Opalinus Clay in CO2LPIE project H. Kim et al. https://doi.org/10.1016/j.ijrmms.2025.106295
- Bestimmung der hydraulischen Durchlässigkeiten eines Sandsteins mithilfe eines Luftpermeameters S. Hale & P. Blum https://doi.org/10.1007/s00767-021-00504-z
- Geological analysis of the hydro-mechanical responses of Opalinus claystone to excavation-induced damage via engineering H. Wang et al. https://doi.org/10.1016/j.compgeo.2024.106668
- Water content evolution in the Opalinus Clay: pre- and post-backfilling observations from the lined and unlined cold sections in the Full-scale Emplacement (FE) experiment T. Sakaki et al. https://doi.org/10.1144/gslspecpub2025-53
- Effects of Initial Damage on Water-Weakening and Acoustic Emission Characteristics of Bedded Shale H. Liu et al. https://doi.org/10.3390/app16062901
- Research on stability and control of water-drenching broken roof roadway C. Xu et al. https://doi.org/10.1016/j.rineng.2026.110957
- Numerical simulation of coupled thermal-hydro-mechanical processes in geologic nuclear waste disposal with corrosion-induced gas generation T. Huang et al. https://doi.org/10.1016/j.jrmge.2024.12.024
- CD-A twin niches in the Mont Terri Rock Laboratory: Characterization and interpretation of hydraulic parameters with regard to safety aspects G. Ziefle et al. https://doi.org/10.1016/j.ijrmms.2023.105624
- Experimental study of swelling-induced crack self-sealing process in claystone samples with indirect water injection process X. Zhao et al. https://doi.org/10.1016/j.ijrmms.2026.106544
- Resistance and swelling of Tabriz marl soils stabilised using nano-silica and nano-alumina R. Alipour et al. https://doi.org/10.1680/jgeen.21.00016
- Multi-disciplinary investigation of the hydraulic-mechanically driven convergence behaviour: CD-A twin niches in the Mont Terri Rock Laboratory during the first year G. Ziefle et al. https://doi.org/10.1016/j.gete.2022.100325
- Evaluating Fracture Surface Imaging Methods Using Flow Simulations and Air Permeameter Measurements M. Fuchs et al. https://doi.org/10.1007/s00603-023-03615-6
- Basic chemical composition combination rules and quantitative criterion of red beds G. Cui et al. https://doi.org/10.5194/se-15-1185-2024
- Review of discrete fracture network characterization for geothermal energy extraction G. Medici et al. https://doi.org/10.3389/feart.2023.1328397
- Laboratory testing of saturated permeability affected by rock swelling M. Tian & C. Butscher https://doi.org/10.1007/s12665-026-12897-2
- Assessing portable air permeameter in bioturbated sedimentary rocks J. Dorador et al. https://doi.org/10.1016/j.ijrmms.2026.106579
17 citations as recorded by crossref.
- Self-sealing of fractures in indurated claystones measured by water and gas flow C. Zhang & J. Talandier https://doi.org/10.1016/j.jrmge.2022.01.014
- Hydro-mechanical-chemical effects on flow properties of Opalinus Clay in CO2LPIE project H. Kim et al. https://doi.org/10.1016/j.ijrmms.2025.106295
- Bestimmung der hydraulischen Durchlässigkeiten eines Sandsteins mithilfe eines Luftpermeameters S. Hale & P. Blum https://doi.org/10.1007/s00767-021-00504-z
- Geological analysis of the hydro-mechanical responses of Opalinus claystone to excavation-induced damage via engineering H. Wang et al. https://doi.org/10.1016/j.compgeo.2024.106668
- Water content evolution in the Opalinus Clay: pre- and post-backfilling observations from the lined and unlined cold sections in the Full-scale Emplacement (FE) experiment T. Sakaki et al. https://doi.org/10.1144/gslspecpub2025-53
- Effects of Initial Damage on Water-Weakening and Acoustic Emission Characteristics of Bedded Shale H. Liu et al. https://doi.org/10.3390/app16062901
- Research on stability and control of water-drenching broken roof roadway C. Xu et al. https://doi.org/10.1016/j.rineng.2026.110957
- Numerical simulation of coupled thermal-hydro-mechanical processes in geologic nuclear waste disposal with corrosion-induced gas generation T. Huang et al. https://doi.org/10.1016/j.jrmge.2024.12.024
- CD-A twin niches in the Mont Terri Rock Laboratory: Characterization and interpretation of hydraulic parameters with regard to safety aspects G. Ziefle et al. https://doi.org/10.1016/j.ijrmms.2023.105624
- Experimental study of swelling-induced crack self-sealing process in claystone samples with indirect water injection process X. Zhao et al. https://doi.org/10.1016/j.ijrmms.2026.106544
- Resistance and swelling of Tabriz marl soils stabilised using nano-silica and nano-alumina R. Alipour et al. https://doi.org/10.1680/jgeen.21.00016
- Multi-disciplinary investigation of the hydraulic-mechanically driven convergence behaviour: CD-A twin niches in the Mont Terri Rock Laboratory during the first year G. Ziefle et al. https://doi.org/10.1016/j.gete.2022.100325
- Evaluating Fracture Surface Imaging Methods Using Flow Simulations and Air Permeameter Measurements M. Fuchs et al. https://doi.org/10.1007/s00603-023-03615-6
- Basic chemical composition combination rules and quantitative criterion of red beds G. Cui et al. https://doi.org/10.5194/se-15-1185-2024
- Review of discrete fracture network characterization for geothermal energy extraction G. Medici et al. https://doi.org/10.3389/feart.2023.1328397
- Laboratory testing of saturated permeability affected by rock swelling M. Tian & C. Butscher https://doi.org/10.1007/s12665-026-12897-2
- Assessing portable air permeameter in bioturbated sedimentary rocks J. Dorador et al. https://doi.org/10.1016/j.ijrmms.2026.106579
Saved (final revised paper)
Latest update: 13 Jun 2026
Short summary
The construction of tunnels leads to substantial alterations of the surrounding rock, which can be critical concerning safety aspects. We use different mobile methods to assess the hydromechanical properties of an excavation damaged zone (EDZ) in a claystone. We show that long-term exposure and dehydration preserve a notable fracture permeability and significantly increase strength and stiffness. The methods are suitable for on-site monitoring without any further disturbance of the rock.
The construction of tunnels leads to substantial alterations of the surrounding rock, which can...
