摘要
随着城市轨道交通的快速发展,其设定的最高速度目标值突破了现行地铁相关规范最高速度的适用范围,许多在低速时可以忽略的空气动力学现象在快速时就变得不容忽视。结合目前的隧道阻塞比,给出城市快速轨道交通所出现的由空气动力学效应引起的相关现象,并结合地铁自身特点进行定性分析,提出相应的减缓措施,以期对进一步的研究提供参考方向,对类似工程有所帮助。
With the high-speed development of urban rail transit,the target maximum train velocity has exceeded the velocity range specified in the current metro design codes.Some aerodynamic phenomena which could be ignored under the lower velocities have become very prominent under the high speed.This paper presents relative aerodynamic phenomena concerned with the blockage ratio and qualitatively analyzes some alleviation measures accounting for the specialties of subway.
出处
《都市快轨交通》
2011年第2期63-67,共5页
Urban Rapid Rail Transit
关键词
城市快速轨道交通
空气动力学
阻塞比
减缓措施
urban rapid rail transit
aerodynamics
blockage ratio
alleviation measures
