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Proposed idealized design fire curves for road tunnels

机译:公路隧道拟议的理想设计火灾曲线

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In designing tunnels for fires, the design fire needs to be quantified. Design fires formrnthe base input for emergency ventilation, evacuation, and structural design analyses. Arndesign fire is the idealization of a real fire that may occur in a tunnel. It describes,rnquantitatively, the characteristics of a particular fire with respect to time and space, e.g.rnfuel state (solid, liquid, or gas), fuel type and quantity, fuel configuration and location,rnheat release rate, rate of growth, production rate of combustion products (smoke, CO,rnCO_2 etc.). A design fire is in general defined in terms of heat release rate, and speciesrnoutput as functions of time. This paper summarizes the efforts to develop a set ofrnidealized design fire curves as a useful tool for road tunnel fire risk assessment. Therndeveloped idealized design fire curves include the following phases: (1) incubationrnphase, (2) growth phase, (3) fully-developed phase, and (4) decay phase.
机译:在设计火灾隧道时,需要对设计火灾进行量化。设计火灾由应急通风,疏散和结构设计分析的基本输入决定。 Arndesign火灾是隧道中可能发生的真实火灾的理想化。它定量地描述了特定火灾相对于时间和空间的特征,例如燃料状态(固体,液体或气体),燃料类型和数量,燃料配置和位置,放热率,增长率,生产率燃烧产物(烟,CO,rnCO_2等)。一般来说,设计火灾是根据放热率和种类输出随时间变化而定义的。本文总结了开发一套理想化的设计火灾曲线作为道路隧道火灾风险评估的有用工具的努力。已开发的理想化设计燃烧曲线包括以下几个阶段:(1)孵化阶段,(2)生长阶段,(3)完全发育阶段和(4)衰减阶段。

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