Skip to Main content Skip to Navigation

Comportement thermo-hydro-mécanique des massifs rocheux fracturés

Abstract : The purpose of this research is to model Thermo-Hydro-Mechanical behavior of fractured rock mass regarding a nuclear waste redepository. For this, a methodology of modeling was proposed and was applied to a real underground site (EDF site at Nouvelle Romanche). This methodology consists, in a first step, to determine hydraulic and mechanical REV. Beyond the greatest of these REV, development of a finite element code allows to model all the fractures in an explicit manner. The homogenized mechanical properties are determined in drained and undrained boundary conditions by simulating triaxial tests that represent rock mass subject to loading. These simulations allow to study the evolution of hydraulic and mechanical properties as a function of stress state. Drained and undrained boundary conditions enable to discuss the validity of assimilation of a fractured rock mass to a porous medium. The simulations lead to a better understanding of the behavior of the fractured rock masses and allow to show the dominant role of the shear behavior of the fractures on the hydraulic and mechanical homogenized properties. From a thermal point of view, as long as conduction is dominant, thermal properties of the rock mass are almost the same as those the intact rock.
Complete list of metadata
Contributor : Ecole Des Ponts Paristech Connect in order to contact the contributor
Submitted on : Tuesday, October 5, 2010 - 6:32:18 PM
Last modification on : Wednesday, January 23, 2019 - 10:29:27 AM
Long-term archiving on: : Thursday, January 6, 2011 - 2:57:38 AM


Files produced by the author(s)


  • HAL Id : tel-00523618, version 1



François Coste. Comportement thermo-hydro-mécanique des massifs rocheux fracturés. Géologie appliquée. Ecole Nationale des Ponts et Chaussées, 1997. Français. ⟨tel-00523618⟩



Record views


Files downloads