| Issue |
Rev. Fr. Geotech.
Number 92, 2000
|
|
|---|---|---|
| Page(s) | 41 - 47 | |
| DOI | https://doi.org/10.1051/geotech/2000092041 | |
| Published online | 09 October 2017 | |
Affaissement en surface lors du creusement d’un souterrain
Soil surface subsidence over a tunnel
LMS et G.3S École polytechnique 91128 Palaiseau, France.
L’affaissement à long terme de la surface du sol au-dessus d’un tunnel est comparé à l’affaissement instantané au moment du creusement dans le cadre de l’élasticité linéaire. Les résultats numériques montrent, sur des exemples vraisemblables, que si des déplacements importants sont décelés en surface, il s’agit très probablement de déformations irréversibles.
Abstract
Long term soil surface subsidence over a tunnel is compared to instantaneous subsidence at the time of excavation, with the linear elasticity theory. Numerical results with likely examples show that large surface displacements are probably the results of irreversible strains.
Mots clés : souterrain / affaissement
Key words: tunnels / subsidence
© CFMS-CFGI-CFMR-CFG 2000
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