Tunnel Fire Staff Evacuation Channel Distance Design Based on EXODUS

Fire in the underground long and big tunnel is a serious accident. Itpsilas very essential to study the evacuation technology and rescue people in the fire situation. The authors do the theory research about the fire factors that affect the peoplepsilas lives in the tunnel, including high temperature, toxic gases, visibility and heat radiation and so on. Adopted the technical engineering risk theory, the fire evaluation is constructed as 5 levels. That is, 1 fire risk grade is Negligible, 2 is should be considered, 3 is serious, 4 is very serious and 5 is disastrous. Made level 2 as optimize criteria to design evacuation structure and use SMARTFIRE to emulate the fire scenario and import the results to BuildingEXODUS to simulate the evacuation. Contrast the several fire scales and distances between evacuation channels, when the distance between evacuation channels is 100 m, the staff can be evacuate successfully. And when the ventilation rate is 2.5 m/s can disturb smoke flow back effectively. The optimization result is below risk level 2. This risk can be accepted but need to be considered.