FIRE DANGER OF DOUBLE-TRACK UNDERGROUND TUNNELS

The article considers the specific fire hazards of rolling stock and equipment in double track underground tunnels. Examples of major fires in underground tunnels in different countries have shown that the most complicated and catastrophic fires are associated with rolling stock in the tunnel. It is noted that fires in double track tunnels are characterised by the spread of fire hazards in one volume of the tunnel and can lead to the simultaneous stoppage of two electric trains. For the modelling of the fire evolution and its hazard factors, as well as for the development of evacuation measures in double track tunnels, it is recommended to consider the following design accidents: rolling stock fire and tunnel fire.