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- 저자 : 이규천(Lee Gyu-Chon) (검색결과 2 건)
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지하철 3호선 동호철교 하로판형교 구간 콘크리트도상화개량 시공 사례
공선용(Kong Sun-Yong),이규천(Lee Gyu-Chon),김상진(Kim Sang-Jin) 한국철도학회 2006 한국철도학회 학술발표대회논문집 Vol.- No.-
In this report, we introduce the design criteria, construction case and performance of our track improvement project from ballasted track to concrete track on the example section of Dong-Ho Bridge (girder-plate type bridge) in Seoul Metro Line No. 3, after monitoring 3 years which is from Dec. 2002. 15-year-old Dong-Ho Bridge"s ballast was crushed, worn away, reduced track absorption, had draining problems from the crushed ballast, and corrosion was progressing in steel bridge because the waterproof underneath track was partially damaged. So, we applied changing the track on bridge area from ballasted to concrete in order to keep the track watertight and improve durability of bridge by reducing its weight. This investigation is based on the design criteria and construction case of the concrete track on the girder-type bridge in operating line. We explain the main design, materials, and other performance results in detail and hope it to be helpful for the track improvement in operating line.
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김효산(Kim Hyo-san),이창헌(Lee Chang-hun),김광은(Kim Gwang-eun),이규천(Lee Gyu-chon),박진동(Park Jin-dong) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
The SeoulMerto, operating subway line No.1~4, was constructed in the metropolitan Seoul with the highest population. When it was built, the design was challenged to sharp curved tracks considering the protection of buildings, cultural assets, the connection to ground roads and rivers as well as to elevated railway in some parts. Lots of residential apartments and business complex have gradually increased in the area around subway stations and railway lines according to the urban development. Consequently, Requirements of better quality of life and comfortable environment caused the citizen complain for the noise. It has become one of serious social issues. In this paper, Noise level was analyzed using noise map measured in the running train of all routes. The analysis on the noise level was conducted according to railway type, track components type, seasonal type, retirement degree of the vehicle and subway station. Especially, Noise characteristics were analyzed by noise level data measured in the inside and outside of the train with geometry types of the concrete track. This study will contribute fundamental data for the 「The Development of Sound-Absorbing Block on Concrete Track」 promoted on The National R&D Project.
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