Study on condition for establishing disaster ventilation system in emergency rescue station between tunnel portals

doi:10.16265/j.cnki.issn1003-3033.2017.05.010

Abstract

Abstract: In order to set reasonably disaster prevention and ventilation systems for emergency rescue stations for a given long railway tunnel group from the point of view of disaster prevention and rescue, effects of train fire smoke on the environments in the adjacent tunnels were studied by means of model tests and numerical simulation. The results show that within the range of 20 m from the fire source point, the smoke has a great influence on the environmental temperature and visibility, but there is almost no effect on the region more than 50 m away from the fire source point, that when the distance between emergency rescue station and tunnel portals is greater than 250 m, the train fire smoke has almost no effect on the tunnel environment and there's no need to set a disaster prevention and ventilation system considering the length of the fire source, the fire train parking error, the influence range of the smoke and other factors, and that when the distance is not greater than 250 m, a disaster prevention and ventilation system should be set.

Key words: railway tunnel group, emergency rescue station, emergency ventilation, disaster rescue, fire test, numerical calculation

CLC Number:

X928.7

LI Qi, YU Li, WANG Mingnian. Study on condition for establishing disaster ventilation system in emergency rescue station between tunnel portals[J]. China Safety Science Journal, 2017, 27(5): 52-57.

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