.. _U2.04.06:

**u2.04.06** How to dig a tunnel: excavation methodology
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**Summary:**

This note proposes a methodology to simulate the digging of an underground gallery with *Code_Aster*. The basic method is a method commonly used in this kind of studies: the "convergence — confinement" method.

After a reminder of the principle of the method, the main steps of the *Code_Aster* command file are described. Various numerical examples make it possible to validate the procedure.




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    self

.. toctree::
    :maxdepth: 2
    :numbered:

    Comment_simuler_le_creusement_d_un_tunnel__
    Introduction
    Une_m_thode_pour_simuler_le_creusement_d_une_galerie___partir_d_un_mod_le_2D___la_m_thode_convergence-confinement
    Avant_de_s_attaquer_au_ficher_de_commande_Code_Aster_
    Exemples_de_fichiers_de_commandes
    Validation_du_Code_Aster_sur_un_exemple_d_excavation_en_milieu__lastique_lin_aire
    En_guise_de_conclusion___conseils_et_perspectives
    Bibliographie