Issue |
Rev. Fr. Geotech.
Number 84, 1998
|
|
---|---|---|
Page(s) | 49 - 64 | |
DOI | https://doi.org/10.1051/geotech/1998084049 | |
Published online | 09 October 2017 |
Conception et exécution des tunnels : rôle et résultats de la recherche expérimentale
Tunnel design and construction : importance and results of experimental research
Rock Soil Via Petrarca, 3 24100 Bergame, Italie.
Cet article résume les résultats d’une recherche expérimentale menée depuis vingt-cinq années, selon un programme qui a été appliqué systématiquement au cours de la construction de plus de 250 km de tunnels, en présence des types les plus divers de terrain, soumis à différents états de contrainte.
Les résultats permettent de montrer comment la rigidité du noyau de terrain au front de taille (noyau d’avancement) influence le comportement contrainte-déformation du tunnel et comment il est possible d’utiliser le même noyau comme instrument de stabilisation.
Abstract
This article illustrates the results of experimental research carried out by the author over the last 25 years. The research was based on a programme that was systematically implemented during the construction of more than 250 km of tunnel driven through many different types of ground subject to different stress-strain conditions.
The results show that the rigidity of the core of ground ahead of the face (the advance core) affects the stress-strain behaviour of a tunnel, and that it is possible to use this core as a tool to regulate the short and long term stability of a cavity.
© CFMS-CFGI-CFMR-CFG 1998
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