Publication detail

Uncertainty Quantification of Soil-Structure Interaction in Tunnel Linings by Polynomial Chaos Expansion

NOVÁK, L. GAKIS, A. KŘÍŽEK, M. NOVÁK, D. SPYRIDIS, P.

Original Title

Uncertainty Quantification of Soil-Structure Interaction in Tunnel Linings by Polynomial Chaos Expansion

Type

conference paper

Language

English

Original Abstract

The paper is focused on uncertainty quantification of soil-structure interaction in tunnel linings using a surrogate model in form of Polynomial Chaos Expansion (PCE). Tunnel design is a complex and complicated task since it is strongly associated with a great number of load and material uncertainties. Moreover, modelling the soil-structure interaction multiplies the complexity and non-linearity of a tunnel engineering problems. In order to handle such uncertainties, finite element method with random input variables has proven to be a very accurate tool. The probabilistic analysis is typically performed by Monte Carlo simulation (MC), simulating uncertainties according to their complete probability distributions and statistical correlations. The computational burden of MC represents the main obstacle to its use in complex numerical models and it is therefore not practical for industrial applications. The solution can be an efficient approximation of the original mathematical model by computationally efficient analytical function – a surrogate model. In this study, the surrogate model in form of PCE is utilized, allowing for analytical post-processing (statistical and sensitivity analysis). Uncertainty quantification is focused on estimation of spatial variability of internal forces caused by the soil-structure interaction.

Keywords

Concrete Structures; Polynomial Chaos Expansion; Spatial Variability; Tunnel Linings; Uncertainty Quantification

Authors

NOVÁK, L.; GAKIS, A.; KŘÍŽEK, M.; NOVÁK, D.; SPYRIDIS, P.

Released

8. 5. 2024

Publisher

Springer Science and Business Media Deutschland GmbH

ISBN

9783031602702

Book

20th International Probabilistic Workshop

Pages from

512

Pages to

519

Pages count

8

URL

https://link.springer.com/book/10.1007/978-3-031-60271-9

BibTex

@inproceedings{BUT193625,
  author="Lukáš {Novák} and Angelos {Gakis} and Michael {Křížek} and Drahomír {Novák} and Panagiotis {Spyridis}",
  title="Uncertainty Quantification of Soil-Structure Interaction in Tunnel Linings by Polynomial Chaos Expansion",
  booktitle="20th International Probabilistic Workshop",
  year="2024",
  pages="512--519",
  publisher="Springer Science and Business Media Deutschland GmbH",
  doi="10.1007/978-3-031-60271-9\{_}48",
  isbn="9783031602702",
  url="https://link.springer.com/book/10.1007/978-3-031-60271-9"
}