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Conference papers

Advances in constitutive modelling of jointed roxk hydro mechanical interactions at laboratory scale

Abstract : This study is a part of a wide multi scale research based on in situ experimentations and laboratory tests. The latest, radial water injections in the centre of the lower joint wall are done at constant normal stress from 0 to 110 MPa and at pressures from 0 to 4 MPa. Four hydro mechanical tests have been performed at the L3S laboratory on fractured limestone samples (two diaclase and two bedding plane). The measurement analysis shows a relation between the contact surface variations and the flow values inside the fracture. The hydro mechanical modelling performed using 3DEC code can be improved from the previous analysis through the modification of the relation between the joint hydraulic opening and the joint mechanical closure. The remaining gap between simulations and measurements can be related to fracture asperity degradation and turbulent flow that have not been taken into account in the modelling.
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Submitted on : Friday, April 11, 2014 - 12:59:57 PM
Last modification on : Wednesday, October 20, 2021 - 12:50:03 AM
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  • HAL Id : ineris-00973266, version 2
  • INERIS : EN-2007-204



Philippe Lopez, Alain Thoraval, Olivier Buzzi, I. Rahmani, Marc Boulon. Advances in constitutive modelling of jointed roxk hydro mechanical interactions at laboratory scale. 18. Congrès Français de Mécanique - 14. Colloque Franco-Polonais "Mécanique des sols et des roches", Aug 2007, Grenoble, France. pp.8. ⟨ineris-00973266v2⟩



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