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대심도 터널 화재 시 균일배기 환기방식에서의 최적배연 연구

Study of the Effective Fire and Smoke Control in Deep Underground Tunnel with Transverse Ventilation

  • 김종윤 (서정대학교 소방안전관리과) ;
  • 임경범 (대전과학기술대학교 소방안전관리과) ;
  • 전용한 (상지영서대학교 소방안전과)
  • Kim, Jong-Yoon (Department of Fire Safety Management, Seojeong College) ;
  • Lim, Kyung-Bum (Department of Fire Safety Management, DaeJeon Institute of Science and Technology) ;
  • Jeon, Yong-Han (Department of Fire Safety, Sangji Youngseo College)
  • 투고 : 2014.07.29
  • 심사 : 2015.01.08
  • 발행 : 2015.01.31

초록

본 연구는 대심도 터널에서 화재발생 시 균일배기방식의 경우에 대하여 최적의 배연용량을 산정함으로서 환기설비의 설계기술기준 정립 및 세부설계인자 도출을 위한 기초자료로의 활용을 목적으로 한다. 수치해석은 FDS 프로그램을 사용하였으며, 대심도 터널 화재 시 비정상유동에 대하여 해석하였다. 화재해석 결과, 터널내부의 풍속이 0 m/s인 경우 배연용량이 $80m^3/s$로 연기이동거리가 250 m이내로 유지되었으나, 내부풍속이 3.0 m/s인 경우 배연용량이 $197.1m^3/s$로 약 2.5배 증가되어야 연기이동거리가 250 m 이내로 유지되었다.

This study represents the effective fire and smoke control in the case of fire in deep underground tunnels, even if the exhaust system can be calculated, the optimal smoke capacity can be determined by establishing technical standards for the transverse ventilation system focusing on the design as a basis for deriving the parameters for utilization. Numerical analyses were performed using the FDS program as a function of the unsteady flow in a deep underground tunnel fire. The analysis results were calculated within 250 m smoke using an inside wind velocity of 0m/s when the capacity of smoke was exhausted, $80m^3/s$, whereas in case of an internal wind velocity of 3m/s, the capacity of smoke exhaust was $197.1m^3/s$, showing an approximately 2.5 fold increase.

키워드

참고문헌

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