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Anisotropic hydro-viscoplastic modelling of a drift at the Meuse/Haute-Marne URL

Coarita-Tintaya, Ever-Dennys / Golfier, Fabrice / Souley, Mountaka / Vu, Minh-Ngoc

The Meuse/Haute-Marne underground research laboratory was built in the Callovo–Oxfordian (COx) clay formation for the purpose of assessing the feasibility and safety of a deep geological formation to host an industrial radioactive waste repository (Cigéo project) in France. Some observations related to the drifts oriented in the direction of the major horizontal stress remain to be theoretically and numerically understood. In order to contribute to the understanding of the hydromechanical behaviour of the COx claystone, an elasto-viscoplastic model with transient creep was developed, including the inherent elastic and hydraulic anisotropies. Comparison with in situ measurements was made, with encouraging results.

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Anisotropic hydro-viscoplastic modelling of a drift at the Meuse/Haute-Marne URL

Coarita-Tintaya, Ever-Dennys / Golfier, Fabrice / Souley, Mountaka / Vu, Minh-Ngoc

The Meuse/Haute-Marne underground research laboratory was built in the Callovo–Oxfordian (COx) clay formation for the purpose of assessing the feasibility and safety of a deep geological formation to host an industrial radioactive waste repository (Cigéo project) in France. Some observations related to the drifts oriented in the direction of the major horizontal stress remain to be theoretically and numerically understood. In order to contribute to the understanding of the hydromechanical behaviour of the COx claystone, an elasto-viscoplastic model with transient creep was developed, including the inherent elastic and hydraulic anisotropies. Comparison with in situ measurements was made, with encouraging results.

Anisotropic hydro-viscoplastic modelling of a drift at the Meuse/Haute-Marne URL

Coarita-Tintaya, Ever-Dennys / Golfier, Fabrice / Souley, Mountaka / Vu, Minh-Ngoc

The Meuse/Haute-Marne underground research laboratory was built in the Callovo–Oxfordian (COx) clay formation for the purpose of assessing the feasibility and safety of a deep geological formation to host an industrial radioactive waste repository (Cigéo project) in France. Some observations related to the drifts oriented in the direction of the major horizontal stress remain to be theoretically and numerically understood. In order to contribute to the understanding of the hydromechanical behaviour of the COx claystone, an elasto-viscoplastic model with transient creep was developed, including the inherent elastic and hydraulic anisotropies. Comparison with in situ measurements was made, with encouraging results.

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Title:

Anisotropic hydro-viscoplastic modelling of a drift at the Meuse/Haute-Marne URL

Contributors:

Coarita-Tintaya, Ever-Dennys (author) / Golfier, Fabrice (author) / Souley, Mountaka (author) / Vu, Minh-Ngoc (author)

Published in:

European Journal of Environmental and Civil Engineering ; 27 ; 2731-2745

Publication date:

2023-06-11

Size:

15 pages

ISSN:

1964-8189 , 2116-7214

DOI:

https://doi.org/10.1080/19648189.2020.1797887

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

Keywords:

Hydromechanical coupling , tunnel , anisotropy , Callovo–Oxfordian claystone , Comsol Multiphysics

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