Abstract
In cases of concrete slab tracks, the allowable settlement should be kept strictly below 25 mm. Settlementcan cause problems such as reduced train stability, and increased cost and time of maintenance. The Gyeongsang Basin,which include Daegu, Gyeongju, and Ulsan, was constructed using rock debris of tunnel excavation as embankmentmaterial. It is mainly composed of shale rock. This shale, which weathers faster in this area, is very easily weatheredand breaks along the bedding planes when exposed to wind and rain after a certain period. For this reason, cracks andfractures of the concrete tracks have occurred due to roadbed settlement. In this study, field measurement was conductedto study settlement of the shale rock fill. Also, problems in an existing slake durability test were analyzed for shale,which may be unsuitable as an embankment material. A new test method for shale was conducted and proposed. Theresults indicate that the samples should be exposed to air for 6 months or more to accurately test their durability.
Translated title of the contribution | Study on Applicability of Shale as an Embankment Material in Railway Roadbed Using Slake Durability Test |
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Original language | Korean |
Pages (from-to) | 166-176 |
Number of pages | 11 |
Journal | 한국철도학회논문집 |
Volume | 21 |
Issue number | 2 |
DOIs | |
State | Published - Mar 2018 |