Courbe de convergence d’un tunnel pour un modèle phénoménologique d’endommagement

A closed-form solution of the ground reaction curve is presented. Non-linearities of rock materials are modelled by using the isotropic phenomenological damage formalism. À validation of the solution by the transfer matrix method is proposed. The « Bois de Peu » tunnel, close to Besançon, provides a pratical application to calculations showing the possibility to use the damage mechanics for design in underground work.