1. 研究目的与意义（文献综述）
Tunnel fire is a major cause of accidents in many mining fields in the world. To control smoke in the main tunnel we use longitudinal ventilation necessary to prevent upstream movement of combustion products in a tunnel fire. Classically, fire is simply associated to its heat release rate which by definition heat release rate is given by the product of the smoke mass flow rate by the temperature rise in the smoke. However, for a given fire, the values of these two quantities remain correlated and more, the size of the fire is not independent of the released heat. From an analysis of the combustion products, the burning rate and the air entrainment rate into the flame, a system of equations is derived.A recent series of fire trials performed at the Health and Safety Laboratory (HSL), Buxton, UK showed that, as the fire size increases to the point where the flame length exceeds the tunnel heightFrom the analysis results, it can be seen that the throttling effect exists in the level tunnel, buoyancy effect can be neglected; and in the uplink tunnel simultaneously exist in a throttling effect and buoyancy effect, and with the increase of the power of heat release, throttling effect more obvious
2. 研究的基本内容与方案
目录
1．武汉理工大学本科生毕业设计（论文）答辩申请表2．武汉理工大学本科生毕业设计（论文）指导教师评分表3．武汉理工大学本科生毕业设计(论文)评阅教师评分表4．武汉理工大学本科生毕业设计（论文）答辩成绩表5．武汉理工大学本科生毕业设计（论文）成绩评定表
objectives
3. 研究计划与安排
确定方案，完成开题报告、完成外文文献翻译，交指导老师审阅。
4. 参考文献（12篇以上）
[1]郑梓德,侯龙飞,自动挡烟垂壁对隧道火灾的控制研究.安全与环境工程,2011.18(5):p.69-73.[2]胡顺利,毕海权,何磊,纵向挡烟垂壁在单洞双线隧道中的应用.制冷与空调（四川）,2014(1):p.53-56.
[3]lacroix,d.thenewpiarcreportonfireandsmokecontrolinroadtunnels.insafetyinroadandrailtunnels.internationalconference.1998.
[4]尤方立,狭长空间内火灾烟气与人员疏散控制研究.安全,2008(5):p.5-8.
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