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Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >
Cyclic deformation of granular material subjected to moving-wheel loads
| Title: | Cyclic deformation of granular material subjected to moving-wheel loads |
| Authors: | Ishikawa, Tatsuya Browse this author →KAKEN DB | | Sekine, Etsuo Browse this author | | Miura, Seiichi Browse this author |
| Keywords: | base course | | cyclic load | | gravel | | railroad | | special shear test |
| Issue Date: | May-2011 |
| Publisher: | Canadian Science Publishing |
| Journal Title: | Canadian Geotechnical Journal |
| Volume: | 48 |
| Issue: | 5 |
| Start Page: | 691 |
| End Page: | 703 |
| Publisher DOI: | 10.1139/T10-099 |
| Abstract: | This paper describes a new testing method to examine the mechanical behavior of railroad ballast subjected to repeated train passages on ballasted track. Two types of cyclic loading tests, namely a single-point loading test and a moving-wheel loading test, were performed with small-scale models of ballasted track. Next, a "multi-ring shear apparatus" was developed as a type of torsional simple shear apparatus, and the applicability of a newly proposed multi-ring shear test to an element test of railroad ballast subjected to moving-wheel loads was examined by comparing the results of multi-ring shear tests with those of small-scale model tests. As a result, it was recognized that cumulative strain obtained from multi-ring shear tests is almost equivalent to the one derived from small scale-model tests. Moreover, it was revealed that the difference between loading methods has a considerable influence on the cyclic plastic deformation of railroad ballast because settlement in a moving-wheel loading test was much larger than the one in a single-point loading test. These results lead to the conclusion that a multi-ring shear test has an excellent applicability to the estimation of deformation behavior of granular materials subjected to moving-wheel loads. |
| Relation: | http://www.nrcresearchpress.com/journal/cgj |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/46206 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 石川 達也
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