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Place Amphithéâtre II, bâtiment Eiffel, CentraleSupelec
Design and analysis of computer experiments for numerical modeling of mechanized tunneling-induced settlements using surface monitoring data
Predicting ground movements induced by mechanized tunnel excavation is a major challenge for risk management in urban environments.
Although modern Tunnel Boring Machines (TBMs) are designed to limit soil deformations, surface settlements remain sensitive to many factors related to both site geological conditions and TBM operating parameters.
This thesis is framed within the methodology of Design and Analysis of Computer Experiments (DACE), combining numerical modeling and statistical methods to analyze and interpret these deformations.
It relies on Gaussian process metamodels to reduce computational costs and quantify epistemic uncertainty, on sensitivity analysis methods to identify the most influential parameters, and on inversion techniques to determine configurations consistent with field observations.
The developments carried out make it possible to link numerical simulations with monitoring data and to better quantify uncertainties, with the objective of improving the reliability of predictions for urban tunneling projects.
Composition du jury :
- Deck Olivier, professeur des universités, Ecole des Mines Nancy, Examinateur
- Dias Daniel, professeur des universités, Université Grenoble Alpes, Examinateur
- El Souwaissi Nour, ingénieure de recherche, Eiffage Génie Civil, Examinatrice
- Pereira Jean-Michel, professeur des universités, Ecole des Ponts ParisTech, Rapporteur & Examinateur
- Sudret Bruno, professeur des universités, ETH Zurich, Rapporteur & Examinateur