Title :

Numerical study of thermo-hydro-mechanical responses of in situ heating test with phase-field model

Author(s) :

Yu, Zhan [Auteur]
Laboratoire de Mécanique, Multi-physique, Multi-échelle (LaMcube) - UMR 9013
Shao, Jianfu [Auteur]
Laboratoire de Mécanique, Multi-physique, Multi-échelle (LaMcube) - UMR 9013
Vu, Minh-Ngoc [Auteur]
Armand, Gilles [Auteur]

Journal title :

International Journal of Rock Mechanics and Mining Sciences

Volume number :

138

Pages :

104542

Publisher :

Pergamon and Elsevier

Publication date :

2021-02

ISSN :

1365-1609

English keyword(s) :

THM coupling
damage
plastic deformation
phase-field method
COx claystone
Heating test

HAL domain(s) :

Planète et Univers [physics]/Sciences de la Terre/Géologie appliquée
Planète et Univers [physics]/Sciences de la Terre/Géophysique [physics.geo-ph]
Sciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des solides [physics.class-ph]
Sciences de l'ingénieur [physics]

English abstract : [en]

This study is part of numerical simulations performed on an in situ heating test conducted by the French National Radioactive Waste Management Agency (Andra) at the Meuse/Haute-Marne Underground Research Laboratory (URL) ...
Show more >This study is part of numerical simulations performed on an in situ heating test conducted by the French National Radioactive Waste Management Agency (Andra) at the Meuse/Haute-Marne Underground Research Laboratory (URL) to study the thermal-hydromechanical behavior of the host Callovo-Oxfordian COx claystone in quasi real conditions, through the international research project DECOVALEX. The emphasis is put on the pore pressure increase generated by the heat released from high level radioactive waste and the consequence on the damage evolution of the host rock. A phase-field method is proposed to describe the evolution of damaged zones around the heating borehole. Both tensile and shear cracks are taken into account. The evolution of damage is coupled with temperature variation, rock deformation, and fluid pressure change. Moreover, the structural anisotropy of elastic properties, permeability, and heat conductivity of the host rock is taken into account. Numerical results are compared with in-situ measurements.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

CNRS
Centrale Lille
Université de Lille

Collections :

• Laboratoire de Mécanique, Multi-physique, Multi-échelle (LaMcube) - UMR 9013

Submission date :

2021-12-08T09:53:08Z
2025-04-01T08:45:04Z