도로터널 라이닝 화재조건 콘크리트 라이닝 공극압력 특성에 관한 연구

• 영문명: A Study on Pore Pressure Evaluation of Concrete Lining in Road Tunnel Fire
• 발행기관: 한국화재소방학회
• 저자명: 박경훈(Park, Kyung-Hoon) 김흥열(Kim, Heung-Youl) 유용호(Yoo, Yong-Ho) 이철호(Lee, Chul-Ho) 김형준(Kim, Hyung-Jun)
• 간행물 정보: 『한국화재소방학회 학술대회논문집』2008년도 추계학술논문발표회 논문집, 484~489쪽, 전체 6쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2008.11.30

영문 초록

We carried out a one-way heating experiment on the PC panel manufactured by changing the filling depths(20,30,40,50mm) of concrete regarding the fire strength in order to measure the inner concrete pressure which is a direct cause of concrete spalling. This fire experiment was conducted under the fire strength conditions of ISO 834 Standard, Modified Hydrocarbon and the maximum value of Pore Pressure was measured. As a result of analyzing the time it took to reach maximum pressure, it showed that the time rising to the maximum pressure of high strength concrete of 40MPa is slower than that of a 24MPa tunnel lining. In case of ISO fire conditions, spalling damage might take place in heating period of $20{\sim}40$ minutes in the range of $100{\sim}200^{\circ}C$ temperature. In case of MHC fire conditions, the area damaged by fire can appear after a lapse of $25{\sim}50$ minutes in the range of $150{\sim}250^{\circ}C$ temperature.