한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2008년도 춘계학술대회 논문집
- /
- Pages.268-273
- /
- 2008
MTT작업에 의한 도상자갈 파쇄특성에 관한 연구
A study on the characteristic of ballast fracture by M.T.T. works
- 이춘길 (한국철도공사 철도연구원 기술연구팀) ;
- 김남홍 (한국철도공사 철도연구원 기술연구팀) ;
-
우병구
(한국철도공사 철도연구원 기술연구팀) ;
- 김용혁 (한국철도공사 철도연구원 기술연구팀) ;
- 김관형 (한국철도공사 철도연구원 기술연구팀) ;
- 이성욱 (한국철도공사, 대전지사, 시설팀)
- Lee, Choon-Kil ;
- Kim, Nam-Hong ;
-
Woo, Byoung-Koo
;
- Kim, Yong-Hyok ;
- Kim, Kwan-Hyung ;
- Lee, Sung-Wook
- 발행 : 2008.06.12
초록
The ballast, one of track components, plays an essential role as intermedium in transmitting train load to subgrade safely, and the deterioration of ballast directly effects the growth of track irregularity. So far, gravel fining of ballast track was mainly related to the repetition of train loads, but was gradually increased with using MTT(Multiple Tie Tamper) recently. Therefore, in this study, an evaluation of the abrasion and crush process of ballast particles was performed with outdoor field test by MTT works. From this study, the amount of abrasion and crush of ballast particles appeared to increase linearly with MTT works, and the gradient of particle size distribution curve appeared to deviate gradually from a criterion of aggregated ballast size distribution in high-speed railroad.
키워드