中文摘要：

为明确风屏障对轨道上方风压分布的影响，通过模型风洞试验，采用风压排管测试了轨道上方的风压系数剖面，与CFD模拟结果进行了对比，讨论了平地路基、高路堤、桥梁3种典型线路情况下风屏障设置方式、风屏障高度等对轨道上方风压分布的影响，分析了风屏障的气动机理。研究表明：迎风侧风屏障有效地减小了轨道上方的风压值，背风侧风屏障会增加轨道上方的负压；在3种线路构造中，桥上的风压值最大，能量耗散最小，而高路堤能量耗散最大，并对接触网有一定的防风作用。

英文摘要：

In order to comprehend the wind screen effects to the distribution of wind pressure above tracks, the wind pressure coefficient profile was tested by the wind tunnel test using the wind pressure row tube, and numerical simulation was carried out to contrast with wind tunnel test. The effects of wind screens in leeward, heights of wind screen on the ground roadbed, high embankment and bridge conditions were discussed on the distribution of wind pressure above tracks, and the mechanism of aerodynamics was analyzed. It shows that the wind pressure above tracks were significantly decreased by wind screens in windward; the wind screens in leeward in- creased the negative pressure above tracks; in the three line structure forms, the wind pressure above tracks on bridge was maximum, the energy dissipation was minimum, and the energy dissipa- tion on high embankment were maximum, meanwhile, the wind pressure coefficients on catenary was decreased when the wind screens were installed on high embankment.