主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2024, Vol. 43 ›› Issue (7): 0-970.

• •    下一篇

轨道交通地下单渡线配线区间烟控实测及模拟研究

刘凯1，2   

  1. （1.中铁第一勘察设计院集团有限公司，陕西 西安 710043；2.陕西省铁道及地下交通工程重点实验室，陕西 西安 710043）
  • 出版日期:2024-07-15 发布日期:2024-07-15
  • 作者简介:刘 凯(1987- )，男，陕西渭南人，中铁第一勘察设计院集团有限公司高级工程师，主要从事城市轨道交通方面的设计及研究工作，陕西省西安市雁塔区公园南路60号，710043，648185054@qq.com。
  • 基金资助:
    基金项目：中铁第一勘查设计院集团有限公司自立科研（院科研18-46）

Measurement and simulation research on smoke control in the underground single crossover distribution section of rail transit

Liu Kai1,2   

  1. (1.China Railway the First Survey and Design Institute Group Co. Ltd., Shaanxi Xi'an 710043, China; 2.Shaanxi Railway and Underground Traffic Engineering Key Laboratory Co., Ltd., Shaanxi Xi'an 710043, China)
  • Online:2024-07-15 Published:2024-07-15

摘要： 为了明确单渡线配线区间不同排烟设计方案的烟气控制效果，选取某地铁线路的单渡线配线区间，通过现场实测和烟流数值模拟分析，得到影响隧道区间整体排烟能力和气流组织分配的因素。结果表明：单渡线形式下，隧道通风系统的排烟能力主要取决于TVF风机，在无射流风机且仅靠TVF风机的情况下，采用2送2排模式，能满足火灾区段断面风速的要求，且均未发生通过渡线烟流串线的现象；TVF开启台数对起火区间的风速提升显著，但采用4送4排模式会导致烟气过站。

关键词: 单渡线；排烟设计；现场测试；数值模拟

Abstract: In order to clarify the smoke control effects of different smoke exhaust design schemes in the single crossover distribution section, a single crossover distribution section of a certain subway line was selected. Through on-site measurement and smoke flow numerical simulation analysis, the factors affecting the overall smoke exhaust capacity and airflow organization distribution of the tunnel section were obtained. The results show that under the single crossover form, the smoke exhaust capacity of the tunnel ventilation system mainly depends on the TVF fan. In the case of no jet fan and only relying on the TVF fan, adopting a 2-supply 2-row mode can meet the requirements of the cross-sectional wind speed in the fire section, and there is no phenomenon of smoke flow crossing the crossover line; The number of TVF units activated significantly increases the wind speed in the fire zone, but using the 4-to-4 exhaust mode will cause smoke to pass through the station.

Key words: single crossover; smoke exhaust design; on site testing; numerical simulation