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从隧道火灾发生的原因、特点、危害及启示分析入手,重点对浙江省内在建的苍岭隧道特征及火灾发生频率进行了分析,通过技术、经济、安全等各方面的综合比较后,确定火灾工况条件下采用带独立排烟道的竖井送排式纵向通风模式,文中重点对目前国内山岭隧道中未见采用的带独立排烟通道的通风排烟系统的工作方式进行了深入探讨。以期为后续类似山岭隧道的设计和修建提供参考依据。
Beginning with the analysis of the causes, characteristics, hazards and enlightenment of tunnel fires, the characteristics of Cangling tunnel built in Zhejiang province and the frequency of fire were analyzed. Through comprehensive comparison of technical, economic and security aspects, In the condition of working conditions, vertical ventilation mode of vertical shaft delivery and discharge with independent exhaust duct is adopted. In this paper, the working mode of the ventilation and exhaust system with independent exhaust duct which is not used in domestic mountain tunnel is emphatically discussed. With a view to provide a reference for the design and construction of similar mountain tunnels.