隧道内火灾的热释放速率对火灾蔓延和烟气生成起着关键作用。影响热释放速率的关键参数包括燃烧物特性、隧道形状、通风条件以及车辆流量。综述了几年来热释放速率对这些参数的依赖性所做的研究成果。设计了贝页斯概率模型来模拟火灾热释放速率受隧道形状以及纵向通风的影响,设计了定性模型来模拟火灾在类似海底隧道内从一个物体蔓延到另一个物体的情况,通风条件同样是纵向通风,并给出了此次研究的初步成果。 The rate of heat release from tunnel fires plays a key role in the spread of fires and the generation of smoke. Key parameters that affect the rate of heat release include flammability characteristics, tunnel shape, ventilation conditions, and vehicle flow. The research results on the dependence of heat release rates on these parameters over the years are reviewed. A Bezs probabilistic model was designed to simulate the effect of fire heat release rate on tunnel shape and longitudinal ventilation. A qualitative model was designed to simulate the fire spreading from one object to another within a subsea tunnel. Ventilation conditions were also vertical Ventilation, and gives the preliminary results of this study.