한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2009년도 춘계학술대회 논문집
- /
- Pages.1509-1513
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- 2009
광섬유가 삽입된 철도용 보강토 옹벽의 초기 변형을 측정
Strain measurement of optical fiber embedded in the reinfoned retaining wall used in the railway
-
윤혁진
(한국철도기술연구원 철도구조연구실) ;
- 송광용 (중앙대학교 물리학과) ;
-
김대상
(한국철도기술연구원 차륜궤도연구실) ;
-
김기환
(한국철도기술연구원 차륜궤도연구실) ;
-
김정석
(한국철도기술연구원 철도구조연구실) ;
- 권태수 (한국철도기술연구원 철도구조연구실) ;
-
나희승
(한국철도기술연구원 대륙철도연구실)
-
Yoon, Hyuk-Jin
;
- Song, Kwang-Yong ;
-
Kim, Dae-Sang
;
-
Kim, Ki-Hwan
;
-
Kim, Jung-Seok
;
- Kwon, Tae-Soo ;
-
Na, Hee-Seung
- 발행 : 2009.05.21
초록
The research of applying reinforced retaining wall due to support the land pressure that given from train's load has been accomplished actively in domestic area. After the retaining wall has been installed, the collapse or partial destruction that generated by effect of train's vibration and repetitive load of train may be induced. Accordingly in the period of using this, the sufficient durability should be guaranteed and years of durability are one hundred and as these are longer than road structure's, the technique that introduced to wall and monitor the long-term strain is necessary. In this paper, the optical fibre is induced vertically to the reinforced retaining wall and after the subsistence of optical fibre is confirmed, the early strain that applied to optical fibre after insertion is monitored. Before and after the concrete placing, damage feasibility of optical fibre is measured by using OTDR(Optical Time Domain Reflectometer) and after concrete is cultivated, the early strain induced to optical fibre is measured by application of BOCDA (Brillouin Correlation Domain Analysis) system.
키워드