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초록
The USP (Under Sleeper Pad) is one of methods to effectively reduce impact loads occurred from train loading. In the study, the repeated impact load is applied to the ballasted layer with newly developed impact load tester, which can control the impact load according to the free fall height of load plate with weight. In cases EPDM (Ethylene-Propylene Diene Monomer) rubber sleeper pad is attached to the load plate, settlement of ballasted layer is reduced by 56%, gravel breakage by 40% with the impact load decrease by 24% as compared without EPDM rubber sleeper pad.
키워드
Ballasted track; Under sleeper pad; Impact load; Settlement; Breakage
- 제목
- 열차 충격하중 재하 시 침목 패드의 도상층 침하 저감 효과
- 제목 (타언어)
- Settlement reduction effects at ballasted layer of sleeper pad under train impact load
- 저자
- 김대상; 김웅진; 김만철; 황성호; 김철영
- 발행일
- 2023-03
- 저널명
- 한국도시철도학회논문집
- 권
- 11
- 호
- 1
- 페이지
- 1433 ~ 1439