摘要
依托建宁西路过江通道工程项目,研究建宁西路过江通道横江大道右线火灾场景下通风排烟方案。结果表明,当火源功率为30 MW、火源位于主线时,仅开启主线车行下游的射流风机,纵向风速为3 m/s时能有效排烟;当火源位于各匝道时,开启火源所在匝道的排烟口以及相邻匝道分岔口附近的射流风机,纵向风速为3~4 m/s时可以有效控制烟气。
Based on the project of Jianning West Road River Crossing Channel,this paper studies the ventilation and smoke extraction scheme of the right line of Hengjiang Avenue in the Jianning West Road River Crossing Channel.The results show that when the heat release rate is 30MW and the fire source is located in the main tunnel,only open the jet fan downstream of the main tunnel and the longitudinal wind speed is 3m/s can effectively exhaust smoke.When the fire source is located at each branch tunnel,open the smoke exhaust port of the branch tunnel where the fire source is located and the jet fan near the fork of the adjacent branch tunnel.When the longitudinal wind speed is 3~4m/s,the smoke can be effectively controlled.
作者
丁鸿志
陈研
Ding Hongzhi;Chen Yan(Nanjing Construction Center of Public Works,Jiangsu Nanjing 210019)
关键词
地下互通隧道
火灾
通风方案
FDS
underground interchange tunnel
fire
ventilation scheme
FDS
