Skip to Main content Skip to Navigation
Theses

Conception et dimensionnement des ouvrages souterrains dans les massifs rocheux discontinus – Développement de la méthode des blocs isolés

Abstract : Many activity sectors involve occupation of underground space. Digging in a rockmass presents different modes of ruin that must be identified in order to use the appropriate design tools. Among them, block instability is a usual problem in fractured rock masses. Numerical approaches of multiple blocks allow to consider the complete rockmass but their use can be hard and requires a lot of input data sometimes unavailable. The Isobloc approach is based on the isolated block concept and, compared to other methods based on the same concept, it is more rigorous in solving the block mechanics problem. In this thesis, this method has been studied in order to integrate it in the design approach of fractured rock mass. A first part is specifically interested in the normal joint behavior law, and in definition of indicators to quantify the safety of the block's equilibrium state. A second part presents reflections and ways to model a support solution with Isobloc. Three types are proposed according to the knowledge degree of the support. Finally, an application of the Isobloc method in the blocks stability study approach has been proposed using data from a real study site.
Complete list of metadata

https://pastel.archives-ouvertes.fr/tel-03297253
Contributor : Abes Star :  Contact Connect in order to contact the contributor
Submitted on : Friday, July 23, 2021 - 12:37:11 PM
Last modification on : Sunday, July 25, 2021 - 3:17:01 AM
Long-term archiving on: : Sunday, October 24, 2021 - 6:36:27 PM

File

2021UPSLM014_archivage.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-03297253, version 1
`

Citation

Gabriel Lopard. Conception et dimensionnement des ouvrages souterrains dans les massifs rocheux discontinus – Développement de la méthode des blocs isolés. Géologie appliquée. Université Paris sciences et lettres, 2021. Français. ⟨NNT : 2021UPSLM014⟩. ⟨tel-03297253⟩

Share

Metrics

Record views

132

Files downloads

44