Skip to Main content Skip to Navigation
Theses

Numerical analyses of the multi-physics problem of sinkholes in the vicinity of a dike or a linear geo-structure

Abstract : Geo-structures such as dams and levees or dikes are subjected to seepage varying in time and space. The water flowing through these porous media can lead to the detachment and transport of part of the soil particles within the structures or their foundations. This problem is usually called internal erosion. The term suffusion, one type of internal erosion, refers to the detachment and transport of finer particles through a coarser porous soil matrix due to seepage flow. Suffusion can modify with time the hydraulic and mechanical properties of the soils and may trigger significant damage on such structures and lead eventually to their collapse. This research attempts to contribute to the design and sustainability of geotechnical and hydraulic engineering structures, with a particular focus on embankment dams, levees, and dikes. It aims to develop a numerical model of suffusion by introducing, on the one hand, the coupling of the hydraulic and mechanical phenomena and, on the other hand, the coupling of erosion and filtration.
Document type :
Theses
Complete list of metadatas

https://tel.archives-ouvertes.fr/tel-02443260
Contributor : Abes Star :  Contact
Submitted on : Friday, January 17, 2020 - 8:54:26 AM
Last modification on : Monday, May 4, 2020 - 3:18:00 PM

File

J_YANG.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-02443260, version 1

Collections

Citation

Jie Yang. Numerical analyses of the multi-physics problem of sinkholes in the vicinity of a dike or a linear geo-structure. Civil Engineering. École centrale de Nantes, 2019. English. ⟨NNT : 2019ECDN0016⟩. ⟨tel-02443260⟩

Share

Metrics

Record views

140

Files downloads

447