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Settlement of Ballasted Track with Large Sleeper Spacing
Maintenance of low annual tonnage ballasted tracks for local railway lines is an important consideration in Japan. To improve safety, deteriorated wooden sleepers are replaced with concrete sleepers. However, the cost of concrete sleepers is higher. To reduce the cost of the replacement, it is effective to increase the sleeper spacing and reduce the number of sleepers. In this scenario, the applied load on each sleeper will increase. In this study, the applied load on each sleeper was calculated by FEM analysis and verified by measuring the rail seat load at the site. The full-scale cyclic loading tests on single sleeper ballasted track models were carried out to investigate the settlement of sleeper. In the tests, the effects of roadbed stiffness and fine contents of ballast material on the settlement of sleeper were investigated. From the tests conducted, the threshold sleeper spacing that would not considerably increase the settlement was determined.
Settlement of Ballasted Track with Large Sleeper Spacing
Maintenance of low annual tonnage ballasted tracks for local railway lines is an important consideration in Japan. To improve safety, deteriorated wooden sleepers are replaced with concrete sleepers. However, the cost of concrete sleepers is higher. To reduce the cost of the replacement, it is effective to increase the sleeper spacing and reduce the number of sleepers. In this scenario, the applied load on each sleeper will increase. In this study, the applied load on each sleeper was calculated by FEM analysis and verified by measuring the rail seat load at the site. The full-scale cyclic loading tests on single sleeper ballasted track models were carried out to investigate the settlement of sleeper. In the tests, the effects of roadbed stiffness and fine contents of ballast material on the settlement of sleeper were investigated. From the tests conducted, the threshold sleeper spacing that would not considerably increase the settlement was determined.
Settlement of Ballasted Track with Large Sleeper Spacing
Lecture Notes in Civil Engineering
Tutumluer, Erol (editor) / Nazarian, Soheil (editor) / Al-Qadi, Imad (editor) / Qamhia, Issam I.A. (editor) / Momoya, Yoshitsugu (author) / Ito, Kazuki (author) / Kikkawa, Shuhei (author)
2021-08-05
10 pages
Article/Chapter (Book)
Electronic Resource
English
Settlement of Ballasted Track with Large Sleeper Spacing
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