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Analyse par homogénéisation élastoplastique des ouvrages en milieux rocheux fracturés

Abstract : The work presented here is devoted to the applications of the homogenization methods to model and to analyse the jointed rock mass built-in structures. After the presentation of the two most used approaches for the analysis of such structures and their domains of pertinency in that first bibliographical section (chap.1), we have formulated, due to some hypothesis on the geometry and the mechanical characteristics of the constituants (rock matrix and joints), the elasto-plastic macroscopic behaviour of the homogenized medium wether the medium is initially periodically or not heterogenous (chap.2). The main features of this behaviour is the absence of hardening and termes of interaction between joints. To validate the finite element code created (Chap.4), we used the analytical solution of the convergence of a circular tunnel (chap.3). Finally we proceed to apply this numerical code to two typical rock mechanics problems (chap.5).
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Submitted on : Friday, September 10, 2010 - 4:07:18 PM
Last modification on : Friday, September 30, 2022 - 4:09:22 AM
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  • HAL Id : pastel-00000822, version 1


Ano Atta. Analyse par homogénéisation élastoplastique des ouvrages en milieux rocheux fracturés. Sciences de l'ingénieur [physics]. Ecole des Ponts ParisTech, 2004. Français. ⟨NNT : 2004ENPC0007⟩. ⟨pastel-00000822⟩



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