地铁站台公共区排烟方案模拟研究  

Simulation Study on Smoke Exhaust Schemes in Public Areas of Subway Station Platforms

作　　者：朱磊 Zhu Lei(Shanghai Urban Construction Design&Research Institute Co.,Ltd.,Shanghai 200125,China)

机构地区：[1]上海市城市建设设计研究总院(集团)有限公司,上海200125

出　　处：《建筑与装饰》2025年第2期41-44,共4页Construction & Decoration

摘　　要：本文采用数值计算方法,对直接从轨顶排热风道接出辅助排烟管道至站台公共区,火灾时开启排热风机和公共区排烟风机进行排烟的方案进行研究。结果表明,方案可以满足楼扶梯口下部迎面风速不小于1.5m/s的要求。楼扶梯下部0~2.5m高度区域平均迎面风速在2.25m/s以上,1.0~1.8m人员疏散时的呼吸高度区域,平均迎面风速在2.38m/s以上,且能够保证站台烟气不蔓延至站厅区域。By employing numerical calculation methods,a study is conducted on the scheme of connecting the auxiliary smoke exhaust duct directly from the over tunnal exhaust to the public area of the platform.The scheme involves activating the hot air fan and public area smoke exhaust fan during a fire for smoke extraction.The result shows that the scheme can meet the requirement that the head-on wind speed at the lower part of the escalator is not less than 1.5m/s.The average head-on wind speed in the lower part of the stairway at a height of 0 to 2.5 meters is above 2.25m/s.The breathing height area of 1.0 to 1.8 meters when evacuating,and the average head-on wind speed is above 2.38m/s.The platform smoke does not spread to the station hall area.

关 键 词：地铁站台 辅助排烟 迎面风速 数值模拟 

分 类 号：TU8[建筑科学]