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http://dx.doi.org/10.7843/kgs.2019.35.2.5

Dynamic Behavior Evaluation of Pile-Supported Slab Track System by Centrifuge Model Test  

Yoo, Mintaek (Railroad Structure Research Team, Korea Railroad Research Institute)
Lee, Myungjae (Railroad Structure Research Team, Korea Railroad Research Institute)
Baek, Mincheol (Advanced Test Equipment Build-up Team, Korea Railroad Research Institute)
Choo, Yun-Wook (Dept. of Civil and Env. Eng., Kongju National Univ.)
Lee, Il-Wha (Advanced Infrastructure Research Team, Korea Railroad Research Institute)
Publication Information
Journal of the Korean Geotechnical Society / v.35, no.2, 2019 , pp. 5-17 More about this Journal
Abstract
Dynamic centrifuge model test was conducted to evaluate the dynamic stability of the pile-supported slab track method during dynamic railway loading and earthquake loading. The centrifuge tests were carried out for various condition of embankment height and soft ground depth. Based on test results, we found that the bending moment was increased with embankment height and decreased with soft ground depth. In addition, it was confirmed that the pile-supported slab track system could have dynamic stability for short-period seismic loading. However, in case of long-period seismic loading, such as Hachinohe earthquake, the observed maximum bending moment reached to pile cracking moment at the return period of 2,400 year earthquake. The criterion of ratio between embankment height and soft ground depth was suggested for dynamic stability of pile-supported slab track system.
Keywords
Pile-supported track system; Centrifuge tests; Dynamic behavior; Seismic design code;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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