Interprétation des mesures de contraintes par relaxation dans les formations argileuses profondes

Abstract : A new interpretation method of in situ tests, applying inverse problems theory to the initial stresses identification for any constitutive law of the rock mass, has been developped on the basis of overcoring test. It uses probabilistic methods to minimise a cost functional quantizing the discard between calculated and measured data, coupled with finite element simulations of the test under consideration. Concerning the overcoring test, the inversion strategy has been successfully applied to real tests performed in the Opalinus clay of Mont Terri rock laboratory under the hypothesis of an anisotropic elastic constitutive law. The method will be applied latter considering an anisotropic elasto-plastic constitutive law developed and implemented in the frame of this thesis for the Opalinus clay. The initial stresses identification method developed has also been used for back analysis of dilatometer tests with an elasto-plastic associated Drucker-Prager constitutive law with softening.
Document type :
Theses
File URL :
http://docnum.univ-lorraine.fr/prive/INPL_T_2004_GIOT_R.pdf
Complete list of metadatas

https://hal.univ-lorraine.fr/tel-01750025
Contributor : Thèses Ul <>
Submitted on : Thursday, March 29, 2018 - 12:36:10 PM
Last modification on : Monday, April 16, 2018 - 10:41:26 AM

Identifiers

  • HAL Id : tel-01750025, version 1

Collections

Citation

Richard Giot. Interprétation des mesures de contraintes par relaxation dans les formations argileuses profondes. Autre. Institut National Polytechnique de Lorraine, 2004. Français. ⟨NNT : 2004INPL117N⟩. ⟨tel-01750025⟩

Share

Metrics

Record views

11