A Study on the Collapse Pattern of Road Tunnel under Construction

도로 터널 사공중 발생된 붕락형태 분석 연구

  • Lee, Su-Gon (Dept. of Civil Engineering, The University of Seoul) ;
  • Kim, Nag-Young (Highway & Transportation Technology Institute, Korea Expressway Corporation) ;
  • Jeon, Bok-Hyeon (Dept. of Civil Engineering, The University of Seoul)
  • 이수곤 (서울시립대학교 공과대학 토목공학과) ;
  • 김낙영 (한국도로공사 도로교통기술원) ;
  • 전복현 (서울시립대학교 공과대학 토목공학과)
  • Published : 2007.03.30

Abstract

Recently, accelerating population and advanced economy result in extending old freeways and constructing new freeways. To make a good freeway shape, tunnel constructions are also rapidly increasing. Therefore, a possibility of a collapse during a tunnel excavation is getting higher in a proportionate manner. Especially, tunnel excavation has increased in poor geological condition in order to maintain good alignment of road and the collapse of tunnel has often happened without reinforcement method. This research paper will analyze for ms and causes of the collapses for different geological conditions and applied reinforcement solutions by investigating typical collapse sites during highway tunnel constructions.

최근 들어 인구증가와 경제발전에 따른 고속도로의 확장 또는 신설이 급증하고 있고 양호한 노선을 위해 터널 건설도 급속도로 증가하고 있다. 이와 더불어 터널 시공 중 붕괴가 발생할 수 있는 경우도 상대적으로 높아지고 있다. 특히, 도로의 양호한 선형 확보를 위하여 지반조건이 불량한 구간에서 터널 굴착이 증가하므로 적절한 보강공법의 적용 없이 굴착을 실시하는 경우에 붕락이 자주 발생하였다. 본 논문에서는 고속도로 터널 시공 중 보편적인 붕괴 사례를 조사함으로써 다른 지질조건에서의 붕괴원인과 형태 및 적용 보강공법에 대해 분석하고자 한다.

Keywords

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