A Study on Smoke Extract Vents in a Subway with Screen door by Evacuation Performance Evaluation through RSET vs. ASET based on Computer Simulations

스크린도어가 설치된 지하철 승강장의 대피안전성 평가를 통한 제연환기구의 방재성능 개선방안 연구

  • 박형주 (경원대학교 소방방재공학과) ;
  • 이영재 (한밭대학교 건축설비공학과) ;
  • 신동철 (경원대학교 건축공학과) ;
  • 백동호 ((주)삼보기술단 지반사업부)
  • Published : 2007.10.31

Abstract

This study provides comprehensive design improvements covering technical issues concerning life safety matter In case of fire train stoppage in the middle of a tunnel. Recently Government announced that most of subway platforms will have screen doors in 3 years. Therefore, many fire safety engineers considered that they may contribute on life safety on train stoppage in tunnel. Especially The screen door can protect platform from smoke along tunnel ceiling when fire train stopped in tunnel. The study showed that platform ventilation ducts and the a tunnel ventilation chimney in the middle of tunnel in exiting subway tunnel could not guarantee life safety ability in terms of RSET vs. ASET comparison. Furthermore during evacuation process many peoples may be threatened from the smoke spread from the origin of fire. Although only additional vertical route can be installed in tunnels In order to decrease RSET, it will costs high or no spaces remains in outside on the road. The study suggested that increase of ASET can be best solution without additional escape route, therefore alternative design methods suggested on the base of simulation results. Finally the study shows alternative methods can give good result in terms of evacuation performance evaluation. The evacuation performance evaluation helps the decision-maker to determine the preferred alternatives or upgrades to existing tunnel infrastructure and other measure to meet safety objectives. Finally, the study details the effectiveness of measures the can be taken to reduce the risk of incidents in subway tunnels.

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