한국콘크리트학회:학술대회논문집 (Proceedings of the Korea Concrete Institute Conference)

한국콘크리트학회 (Korea Concrete Institute)
권호 표지

수화열을 고려한 터널 라이닝 콘크리트 거푸집 탈형

The Application of Hydration Heat to Form Removal of Lining Concrete in Tunnel

  • 이종길 (한국도로공사 부산-울산 건설사업소 9공구) ;
  • 정형목 (삼성물산(주) 건설부문 부산-울산 고속도로 9공구) ;
  • 김국한 (한국도로공사 부산-울산 건설사업소 품질관리과) ;
  • 남궁영환 (삼성물산(주) 건설부문 부산-울산 고속도로 9공구 품질관리부) ;
  • 박찬규 (삼성물산(주) 건설부문 기술본부 기술연구소)
  • 발행 : 2005.11.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The strength level for removal of lining concrete in tunnel is increased from 2.94MPa to 4.9MPa in 2004. This result in the increase of concrete curing time, and construction time would be delayed. In this study, in order to improve the efficiency of construction cycle and satisfy the strength criterion, a curing method is adopted, which is considering the hydration heat in the lining concrete member. As a result, it is shown that the concrete curing time for form removal is about 20hrs without the adjustment of concrete mix design. And construction cycle time is not changed compared to that before the change of strength criterion.

키워드