以杭州过江隧道为研究对象,分析了隧道火灾时人员安全疏散准则及影响因素,介绍了隧道火灾时人员安全疏散的一种评估方法。通过设定包含最不利情况的火灾场景,然后对各种火灾场景下的烟气蔓延及人员疏散进行模拟,得到了各种火灾场景下隧道内的可用安全疏散时间ASET曲线和必需安全疏散时间RSET曲线。然后比较分析两曲线,进行方案的优化选择,确定最终的设计方案。 Taking Hangzhou cross-river tunnel as the research object, this paper analyzes the criteria and influencing factors of safety evacuation in tunnel fire and introduces an evaluation method of safety evacuation of people in tunnel fire. By setting up the most unfavorable situation and then simulating the smoke spread and evacuation in various fire scenarios, the available safety evacuation time ASET curve and necessary safety evacuation time in the tunnel under various fire scenarios were obtained. RSET curve. Then, the two curves are compared and analyzed, the optimal selection of the scheme is made, and the final design scheme is determined.