Experimental Study on the Interval of Emergency Exits in Long Traffic Tunnels

장대 교통터널의 피난연락갱 설치 간격에 관한 실험적 연구

  • Published : 2005.02.01

Abstract

The objective of this study was to analyze the smoke movement for the case of fire and to determine the interval between emergency exits in long tunnels. Based on Froude modeling, the 1/50 scaled model tunnel (20 m long) was constructed by acrylic tubes and tests were carried out systematically. From the strong relationship between CO propagation time and distance through the tunnel, it was found that the optimal escaping time was 6 minutes in case of 20MW fire. But, regarding passengers' psychological state under fire, another one minute of delay time should be considered. Therefore, the total escaping time should be estimated by 5 minutes. The interval between the emergency exits for vehicle passengers was calculated by 250 m with respect to the 5 minute of escaping time.

Keywords

long tunnel fire;scaled model test;emergency exit

References

  1. National Fire Protection Association, 2001, NFPA 130 Standard for Fixed Guideway Transit and Passenger Rail Systems 2001 Edition
  2. 일본도로공단, 일본도로설계요령('97 개정판)
  3. Megret O. and O. Vauquelin, 2000, A model to evaluate tunnel fire characteristics, Fire safety journal 34, 393-401 https://doi.org/10.1016/S0379-7112(00)00010-2
  4. National Fire Protection Association, 1998, NFPA 502 Standard for Road Tunnels, Bridge, and Other Limited Access Highways
  5. 유영일, 이희근, 1998, 일방향 도로터널내 화재 발생시 역류를 막는 환기속도결정에 관한 축소 모형실험, 터널과 지하공간, 제8권, 107-117
  6. 김정엽외, 2004, 도로터널 제연설비 축소 모형실험에 관한 연구, 한국터널공학회 2003 정기학술발표회 논문집, 12-22
  7. Oka Y. and Atkinson G.T., 1995, Control of smoke flow in tunnel fires, Fire Safety Journal, 25, 305-322 https://doi.org/10.1016/0379-7112(96)00007-0
  8. 이성룡외, 2002, 터널화재시 자연환기에 의한 연기거동에 관한 실험적 연구, 설비공학논문집, 제14권 제3호, 247-253
  9. 건설교통부, 1998, 지하생활공간공기질관리법시행규칙 - 제3조 지하공기질 기준
  10. 최준석외, 2002, 터널내 자동차화재와 풀화재 비교 분석, 한국화재소방학회 춘계학술논문발표회, 5-36