主管:中华人民共和国应急管理部
主办:应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU

消防科学与技术 ›› 2020, Vol. 39 ›› Issue (10): 1376-1379.

• • 上一篇    下一篇

自然通风隧道不同竖井结构形式火灾试验研究

黄天荣1,张银屏2,宋飞3   

  1. 1. 上海城建职业学院土木与交通工程学院,上海200438;2. 上海市城市建设设计研究总院(集团)有限公司,上海200123;3. 上海市消防救援总队,上海200051
  • 出版日期:2020-10-15 发布日期:2020-10-15
  • 作者简介:黄天荣(1982-),男,广西容县人,上海城建职业学院土木与交通工程学院建筑工程技术专业主任,博士,高级工程师,主要从事土木与建筑工程的教学与科研工作,上海市杨浦区军工路2360 号,200438。
  • 基金资助:
    上海市科学技术委员会科技计划项目“中心城区地下道路隧道安全与智能建设关键技术”(15DZ1203800)

Fire tests of different shaft structures in natural ventilation tunnel

HUANG Tian-rong1, ZHANG Yin-ping2,SONG Fei3   

  1. 1. School of Civil and Traffic Engineering, Shanghai Urban Construction Vocational College, Shanghai 200438, China;2. Shanghai Urban Construction Design & Research Institute (Group) Co., Ltd., Shanghai 200123, China; 3. Shanghai Fire and Rescue Brigade, Shanghai 200051, China)
  • Online:2020-10-15 Published:2020-10-15

摘要: 为了揭示竖井结构形式对城市交通自然通风隧道的影响,采用1∶10 的隧道模型,设计中央垂直型及侧向倾斜型两种竖井结构进行对比试验,分析研究两种竖井结构下的隧道纵向温度分布、竖向温度分布以及烟气扩散特性。试验结果表明,中央垂直型竖井隧道的纵向温度、竖向温度均低于侧向倾斜型,且烟气控制效果明显优于侧向倾斜型竖井;中间垂直型竖井有效排烟面积较大且烟气能量衰减更快,是其工作性能优于侧向倾斜型竖井的本质机理。结论可为类似工程设计与建造提供技术参考与借鉴。

关键词: 城市交通隧道, 自然通风, 竖井结构, 温度分布, 排烟特性

Abstract: In order to reveal the influence of shaft structure on natural ventilation of urban traffic tunnel, two types of shaft structures, the central vertical type and the lateral inclined type, are designed by using the tunnel model with the scale of 1:10, and the comparative tests are carried out. The longitudinal and vertical temperature and flue gas diffusion under two types of shaft structure were investigated. The results demonstrated that the longitudinal temperature and vertical temperature of the central vertical shaft tunnel are lower than the lateral inclined shaft, and the smoke control effect is better than that of the lateral inclined shaft tunnel. This originated from that the central vertical shaft has larger effective exhaust area and the energy of the flue gas decays faster in it. This conclusion could provide technical reference for the design and construction of similar projects.

Key words: urban traffic tunnel, natural ventilation, shaft structure;temperature distribution, exhaust characteristics