Location
Arlington, Virginia
Date
14 Aug 2008, 7:00 pm - 8:30 pm
Abstract
In Greece, during the 1980’s, 60% of the twin-block concrete ties designed for 200 km/h, which were laid on a track with maximum operational speed of 140 km/h, presented serious cracks. The existing theories could not justify the appearance of these cracks since the calculated actions on ties were much lower than the limit values. It was found that the geotechnical conditions of the track substructure played a key role in the damage of the sleepers. In this paper a model for the determination of the load acting on the track’s superstructure is presented properly taking into account the geotechnical conditions of the track substructure. The basic parameters of concrete tie design considering the most adverse conditions of a railway network are investigated, and a methodology for calculating the load undertaken by each tie is proposed. Finally, numerical applications on twin-block and monoblock ties are presented, including the use of high resilience fastenings. Moreover an application for the heavy-haul rail transport is presented, in case of a track equipped with W24 fastening and concrete sleepers.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
6th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2008 Missouri University of Science and Technology, 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
Giannakos, Konstantinos, "Damage of Railway Sleepers under Dynamic Loads: A Case History from the Greek Railway Network" (2008). International Conference on Case Histories in Geotechnical Engineering. 5.
https://scholarsmine.mst.edu/icchge/6icchge/session08c/5
Damage of Railway Sleepers under Dynamic Loads: A Case History from the Greek Railway Network
Arlington, Virginia
In Greece, during the 1980’s, 60% of the twin-block concrete ties designed for 200 km/h, which were laid on a track with maximum operational speed of 140 km/h, presented serious cracks. The existing theories could not justify the appearance of these cracks since the calculated actions on ties were much lower than the limit values. It was found that the geotechnical conditions of the track substructure played a key role in the damage of the sleepers. In this paper a model for the determination of the load acting on the track’s superstructure is presented properly taking into account the geotechnical conditions of the track substructure. The basic parameters of concrete tie design considering the most adverse conditions of a railway network are investigated, and a methodology for calculating the load undertaken by each tie is proposed. Finally, numerical applications on twin-block and monoblock ties are presented, including the use of high resilience fastenings. Moreover an application for the heavy-haul rail transport is presented, in case of a track equipped with W24 fastening and concrete sleepers.
