Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2010.09a
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- Pages.1302-1313
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- 2010
A Case Study for the 1st Double-level Tunnel for Light vehicle in Urban Area in Korea
국내 최초 소형차 전용 도심지 대심도 복층터널 설계 사례
- Kim, Gyoung-Hun (Tunnelling & Underground Space Team., Seoyeong Eng.) ;
- Choi, Jun-Dong (Tunnelling & Underground Space Team., Seoyeong Eng.) ;
- Jun, Duk-Chan (Geotech & Tunnel Dept., Yooshin Eng.) ;
- Shin, Il-Jae (Civil & Environment Div., Huyndai E&C.) ;
- Sim, Dong-Hyun (Civil & Environment Div., Huyndai E&C.)
- 김경훈 (서영엔지니어링 지하공간팀) ;
- 최준동 (서영엔지니어링 지하공간팀) ;
- 전덕찬 (주식회사 유신 터널부) ;
- 신일재 (현대건설 토목환경사업본부) ;
- 심동현 (현대건설 토목환경사업본부)
- Published : 2010.09.09
Abstract
The west express way is notorious for extremely heavy traffic area in the west of Seoul, South Korea. Hence, the city government recently initiated a new underground BTO (Build-Transfer-Operate) road project to solve traffic congestion and a high construction cost. The proposed underground express road being designed is the first double-level tunnel ever designed in South Korea and using Conventional tunnelling method (NATM). A total length of tunnel for light vehicles is 10.91km long including both open cut structures and concrete lining with middle-deck in bored tunnel. There are also 4 ventilation shafts for ventilation and evacuation on emergency. Many design issues had been aroused during the preliminary design phase and detail design phase is currently going on. This paper discusses design focuses including excavation methods, ground water issues, a deck slab installation, and a construction cost etc. for the double level road tunnel design of urban area.