地铁区间阻塞场景和通风策略探讨

Blocking Scenario at Subway Intervals and Corresponding Ventilation Strategies

地铁区间阻塞是通风设计考虑的重要工况,提出了阻塞场景的概念,并将阻塞场景划分为单点阻塞、连续阻塞、区域阻塞和多点阻塞等几种。结合地铁运营经验,分析了列车迫停区间的诱发原因、影响范围及案例。详细阐述了不同阻塞场景的通风方案,论述了阻塞等待时间的确定过程及影响因素。

Congested traffic operation at subway intervals is one of the most important considerations in subway ventila- tion design. The concept of blocking scenario and its classi- fication are presented, including single point blocking, con- tinuous blocking, regional blocking and multi-point bloc- king, etc. Combined with the practical operation experi- ences, the induced causes and influencing spheres are ex- plored during train forced stop interval in running tunnel incentives, congested coverage and blocking cases, the con- firming process of waiting time in blocking scenarioand the influencing factors are also discussed.