水下立交型复杂隧道疏散中心有效性研究

Study of the effectiveness of evacuation center in a complicated underwater interchange type tunnel

为研究复杂隧道内"准安全区"对人员疏散的有效性,基于南昌市某设置有疏散中心的水下立交型复杂隧道,采用Pathfinder软件模拟得出不同隧道线路火灾时的人员疏散时间。结果表明:设置疏散中心时,左、右线隧道人员疏散行动时间可分别减少29.2%和25.5%,对应的疏散大厅的使用率分别为12.0%和5.8%。复杂隧道内设置疏散中心可提高火灾时人员疏散的有效性。

In order to study the effectiveness of the quasi-safe area for evacuation,based on a complicated underwater interchange type road tunnel which have evacuation center in Nanchang,the evacuation time about different tunnel line fire was simulated by Pathfinder.The result showed that,when the evacuation center is available,the evacuation movement time in the left and right tun nel line can reduced by 29.2%and 25.5%,respectively;the usage rate of the corresponding evacuation center is 12.0%and 5.8%,re spectively.Thus,the effectiveness of the evacuation in complicat ed tunnel which have evacuation center can be improved when a fire break out.