基于活塞风效应的严寒地区冬季典型地铁车站运行方案
Operation scheme of typical underground railway station in severe cold zone based on piston wind effect
摘要:
将乌鲁木齐作为严寒地区的典型代表城市,以2种常见的站台门型式(安全门和屏蔽门)为基础,基于当地典型年和典型日的气象参数,研究了不同运行阶段及运行模式下的冬季地铁车站热环境。结果表明:地铁运行初期,地铁车站温度低于规范要求的12 ℃,综合对比各工况下车站温度和区间温度,屏蔽门+迂回风道闭式运行为最优运行方案,但仍需采取措施提高车站温度;地铁运行近、远期,虽然车站温度和区间温度较初期时有所提高,但在室外温度很低时,各工况下地铁车站温度计算值仍均低于规范要求的12 ℃,屏蔽门+迂回风道闭式运行仍为最优运行方案。
Abstract:
Taking Urumqi as a typical representative city in severe cold zone, based on two common platform types (safety gates and platform screen doors) and local weather parameters for typical years and days, studies the thermal environment of the underground railway station in winter under different operation stages and operating modes. The research results show that during the early stage of operation, the underground railway station temperature is lower than the specification requirement (12 ℃), and the closed operation of platform screen door with bypass wind tunnel is an optimal operation scheme by comprehensively comparing the station and interval tunnel temperatures under various working conditions and related measures should be adopted to improve the temperature of underground railway station. Although the station and interval tunnel temperatures have different growth rates during recent and forward stages compared with the early stage, when outdoor temperature is very low, the calculated temperatures of underground railway station under the different conditions are still below the standard required 12 ℃, and the closed operation of platform screen door with bypass wind tunnel is still an optimal operation scheme.
Keywords:piston wind, platform door, underground railway station, thermal environment, severe cold zone, platform screen door, bypass wind tunnel