Study on fire characteristics and evacuation safety of urban utility tunnel

Fire Science and Technology ›› 2020, Vol. 39 ›› Issue (6): 786-789.

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Study on fire characteristics and evacuation safety of urban utility tunnel

XU Zhi-sheng，WANG Bei-lei，KONG Jie，LIANG Yin，CHEN Tao

（Institute of Disaster Prevention and Safety Engineering, Central South University, Hunan Changsha 410075, China）

Received:2020-01-20 Online:2020-06-15 Published:2020-06-15

Abstract

Abstract: In order to study the fire characteristics of urban utility tunnel and the safety of evacuation of personnel, the paper uses numerical simulation method to analyze the fire scale of the corridor cable, the flow characteristics of smoke and the safety of evacuation. The results show that when the fire source is located in the middle of the power cabin, the fire scale is the largest, about 2.5 MW; the safe evacuation time for personnel is 240 s, which is enough for people to escape safely.

Key words: utility tunnel, fire scale, smoke spread, safety evacuation

CLC Number:

X913.4，TU990.3

XU Zhi-sheng, WANG Bei-lei, KONG Jie, LIANG Yin, CHEN Tao. Study on fire characteristics and evacuation safety of urban utility tunnel[J]. Fire Science and Technology, 2020, 39(6): 786-789.

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Study on fire characteristics and evacuation safety of urban utility tunnel

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