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김영민(Young-Min Kim),김대왕(Dae-Wang Kim),박석기(Suck-Ki Park),백진욱(Jin-Wook Paik),이상민(Sang-Min Lee),박성룡(Sung-Ryong Park) 한국철도학회 2013 한국철도학회 학술발표대회논문집 Vol.2013 No.5
호남고속철도 정지고가 강아치 교량은 경간장 80m의 3경간 단순교로서 노선은 천안~논산간 고속도로를 사각 168◦로 횡단하는 교량이다. 가설공법 선정 시 우회도로 및 교통통제 없이 고속도로를 횡단 할 수 있는 시공 가능한 공법으로 경사인양 + 압출공법과 Heavy Lifting + 압출 공법을 검토하였다. 비교 결과 부지임대 제한, 공기, 시공성, 경제성을 고려하여 Heavy Lifting + 압출공법을 선정하였다. 가설공법 순서는 가설벤트 조립 후 지조립된 강아치 교각 및 교량을 수직잭을 활용하여 Lifting 후 수평잭으로 압출하여 고속도로를 횡단하였다. 가설공법에 대한 구조검토 및 시공 전 안전성을 확인하기 위해 BIM을 활용하여 가상 시뮬레이션을 수행하였다. 또한, 자동화 계측기를 설치 후 사무실에서 모니터링을 통해 응력 및 변위를 실시간 계측하여 안전성을 확인하였다. The steel arch bridge of Honam Rapid-transit railway of Jeong-ji overpass is the simple bridge with the span length of 80 meters, crossing the highway of Cheonan-Nonsan with the angle of 168 degrees. We examined both the sliding slope lifting + the incremental launching method and the heavy lifting + the incremental launching method as the method which are able to make the bridge overpass the highway maintaining vehicle traffic during the construction. The Heavy lifting + the incremental launching method were selected considering the limitation of the lease of the site, period of construction, the construct ability and the economics after the comparisons. After the assembly of the temporary bents, the bridge which was assembled on the ground was moved by the heavy lifting using the vertical jack and the incremental launching with the horizontal jack. The virtual simulation was performed with the BIM for the examination for the erection method and the confirmation of the safety before the construction. Also, the safety was confirmed through the real time monitoring for the stress and displacement by automatic meter.
장선종(Sun-jong Jang),홍종완(Jong-wan Hong),전기찬(Ki-chan Jeon),김영민(Young-min Kim),백진욱(Jin-wook Paik) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.5
The design of high-depth and large-section tunnel facilities has been increased lately. The purpose of the design is to avoid inference of existing facilities, enhance public relations and reducing the size of the station, which is advantageous for effective use of underground spaces. Diverse downtown tunnel experience, advanced excavation equipment, reinforcement methods, monitoring technologies and numerical analysis made the design possible. This paper is to introduce the design of high-depth and large-section tunnel facilities via Gimpo airport area of Deagok-Sosa railway BTL project of double-tracking.