摘要
选取露天式、地下式不同结构的三个地铁站,针对有无列车进站等情况,测量了不同位置的电磁辐射峰值、瞬时值及平均值,绘制了车站不同方位电磁辐射分布图,揭示了地铁车站空间电磁场分布规律。基于国家最新电磁辐射安全限度标准对这些地铁站的电磁环境进行了评估。最后,围绕如何降低电磁暴露,针对乘客、地铁站工作人员提出了较为实用的防护建议。
The electromagnetic radiation peak value,instantaneous value and average value of three metro stations with different structures of open-air type and underground type are measured according to whether there are trains entering the station or not.The electromagnetic radiation distribution map in different directions of the station is drawn,and the spatial electromagnetic field distribution pattern of the metro station is revealed.Based on the latest national electromagnetic radiation safety limit standard,the electromagnetic environment of these metro stations is evaluated.Finally,some practical protection suggestions are put forward for passengers and metro station staff on how to reduce electromagnetic exposure.
基金
四川省科技计划重点研发项目(2019YFG0040)。
关键词
电磁场
城市轨道交通
公众电磁暴露
安全评估
electromagnetic field
urban rail transit
public electromagnetic exposure
security assessment
