Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2010.09a
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- Pages.1314-1321
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- 2010
A Design Focuses on the Internal Structure of Double-level Tunnel
도심지 대심도 복층터널의 내부구조물 계획
- Park, Shin-Young (Tunneling & Underground Space Team, Seoyeong Eng.) ;
- Jeong, Jae-Ho (Tunneling & Underground Space Team, Seoyeong Eng.) ;
- Cho, Nam-Kak (Tunneling & Underground Space Team, Seoyeong Eng.) ;
- Shin, Il-Jae (Civil & Environment Div., Hyundai E & C) ;
- Sim, Dong-Hyun (Civil & Environment Div., Hyundai E & C)
- 박신영 (서영엔지니어링 지하공간팀) ;
- 정재호 (서영엔지니어링 지하공간팀) ;
- 조남각 (서영엔지니어링 지하공간팀) ;
- 신일재 (현대건설 토목환경사업본부) ;
- 심동현 (현대건설 토목환경사업본부)
- Published : 2010.09.09
Abstract
The west express way which links south west area of the central city of Seoul has been notorious for extremely heavy traffics since its first opening in 1991(i.e. the average vehicle speed is less than 25km/h, a daily traffic is 112,000 and among them, more than 94% of the vehicles are the light vehicles). The city government recently initiated a new BTO(Build-Transfer-Operate) project as an alternative in releasing heavy traffic and a high construction cost. The proposed underground express road is the first double-level tunnel (i.e. a total length of road is 10,91km and the tunnel is 9.308km long) ever built in South Korea, while such tunnel system is not new worldwide as such A86 East tunnel in France, SMART tunnel in Malaysia, and Fuxing tunnel in China. This paper discusses major design issues regarding the internal structures such as deck slab, and secondary liner.