停运工况地铁站台初期火灾烟气运动规律

Movement of Smoke of Early-stage Fire on Subway Platform under Out-of-service Condition

选用碎纸、棉绳和聚氨酯塑料试验火,在地铁站台进行火灾实体试验。在车站夜间停运条件下,对不同类型试验火源的烟气速度、温度进行监测分析,研究地铁中具有镂空格栅吊顶车站站台在停运时初期火灾烟气运动的规律,为地铁车站火灾探测研究提供技术支持。

Fire experhnents were carried out on a subway platform with scraps of paper, cotton ropes as well as polyurethane plastics. With the purpose of providing technical support to the study of fire detection, authors of the paper had measured and analyzed the speeds and temperatures of the smoke generated by the fire source. At the same time movement of the smoke of early-stage fire on the platform with grid and pierced ceilings was also studied trader the condition of the subway station being out-of-service at night.