Location
New York, New York
Date
16 Apr 2004, 8:00am - 9:30am
Abstract
The combined effect of time with the non-homogenous mechanical and hydraulic behaviors of the various intermediate layers between the foundation soil and the tracks often result in undesired deformation and misalignment of the tracks, which can compromise performance of the railway tunnel. The tunnel of Saint-Louis les Aygalades is located on the Paris Marseille mainline. This 476 m long tunnel was built in 1847, from the two portals and two intermediate shafts, under a maximum cover of 35 m in the tertiary formation of Stampien. The section of the tunnel consists of an elliptical vault with large vertical axis resting on the curved sidewalls and supported by a circular invert. The tunnel was entirely lined in masonry bricks with lime mortar. This paper presents an investigation into the behavior of the tracks in the Saint-Louis les Aygalades railway tunnel. The evolution of the tracks misalignment generated the undulatory deformation of the rails, which was caused by the non-homogeneity of the mechanical and hydraulic properties of the track structure. The modeling of the phases of construction and the time effect using the finite element analysis method made it possible to consider the structural role of the invert in the global stability of the tunnel liner. The study allowed the identification of possible causes of the track misalignment and determination of an appropriate solution. Corrective measures were assessed and applied.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 2004 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Nasri, Verya and Winum, Christian, "Analysis of the Invert Damage and Its Rehabilitation Design. The Saint Louis Les Aygalades Tunnel Case Study" (2004). International Conference on Case Histories in Geotechnical Engineering. 7.
https://scholarsmine.mst.edu/icchge/5icchge/session06/7
Analysis of the Invert Damage and Its Rehabilitation Design. The Saint Louis Les Aygalades Tunnel Case Study
New York, New York
The combined effect of time with the non-homogenous mechanical and hydraulic behaviors of the various intermediate layers between the foundation soil and the tracks often result in undesired deformation and misalignment of the tracks, which can compromise performance of the railway tunnel. The tunnel of Saint-Louis les Aygalades is located on the Paris Marseille mainline. This 476 m long tunnel was built in 1847, from the two portals and two intermediate shafts, under a maximum cover of 35 m in the tertiary formation of Stampien. The section of the tunnel consists of an elliptical vault with large vertical axis resting on the curved sidewalls and supported by a circular invert. The tunnel was entirely lined in masonry bricks with lime mortar. This paper presents an investigation into the behavior of the tracks in the Saint-Louis les Aygalades railway tunnel. The evolution of the tracks misalignment generated the undulatory deformation of the rails, which was caused by the non-homogeneity of the mechanical and hydraulic properties of the track structure. The modeling of the phases of construction and the time effect using the finite element analysis method made it possible to consider the structural role of the invert in the global stability of the tunnel liner. The study allowed the identification of possible causes of the track misalignment and determination of an appropriate solution. Corrective measures were assessed and applied.
