地下鉄駅舎火災における煙流動性状 : 相対式ホーム駅舎の火災初期における煙流動性状 Smoke Movement Tests in Subway Stations Actually in Service : Smoke Movement Characteristics in Side Platforms Station in the Early Stage of a Fire

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本論文は第56巻第2号掲載の「地下鉄駅舎火災における煙流動性状」の続報であり,既報の島式ホーム実験結果につづき,稼働中の相対式ホーム型地下鉄駅舎での煙流動実験結果を報告している。実験では地下鉄駅舎内の風速・温度を測定して煙流動モデルの検証に利用し得るデータを得るとともに,(1)ホーム階段シャッター開放時に外部風がホーム上の階段周辺の煙層に与える影響が島式より少ないこと,(2)煙伝播の影響が島式に比べて広範囲に及ぶこと,特に小規模火源においても対向ホーム側へ煙が伝播すること等についての知見を得た。<br>(オンラインのみ掲載)

Smoke movement tests conducted at an side-platforms subway station actually in service in Tokyo in October 2003 using 320-480kW methanol pool fires as fuel are reported. The fire safety design of the station is essentially based on the currently effective underground station design guide, and operation of the existing smoke extraction system and the fire shutters in the stairway between the platform and the concourse was the major experimental parameters. Distribution of temperature, velocity and static pressure throughout the platforms, the tunnel and the concourse were measured. In comparison with the center platform station reported earlier by the same authors(JAFSE Bulletin Vol.56, No.2), there has been general anticipation that smoke movement and threat to life safety in side-platforms station can be different in 1) the larger volume on the platform level and 2) the possible delay of the approach of smoke and detection of fire on the opposite-side platform.<br>In addition to the significant influence of the operation of fire shutters as also seen on the center-platform stations, the test results reveal generally wider spread of smoke toward the ends of the platforms. Performance of the smoke extraction was also found to be significantly affected by the operation of the shutters and is less effective than in center-platform station probably for the larger volume of the platform level.

収録刊行物

  • 日本火災学会論文集  

    日本火災学会論文集 56(3), 65-72, 2006-12-25 

    Japan Association for Fire Science and Engineering

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各種コード

  • NII論文ID(NAID)
    10018472730
  • NII書誌ID(NCID)
    AN0018688X
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05460794
  • NDL 記事登録ID
    8622116
  • NDL 雑誌分類
    ZN1(科学技術--建設工学・建設業)
  • NDL 請求記号
    Z16-105
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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