Abstract: In order to know the regularity of the noise effect of Hainan Eastern Ring Railway, the field measurement of Haikou section was performed. The main conclusions included that the noise increase curve of the train operation period doesn’t present the sound source attenuation characteristic. In the urban area, through monitoring noise of running trains with the different number of the roadside trees, the noise of railway traffic could be reduced. Around the train running line, monitoring indoor noise at different floors, the different regularity of the noise effects was obtained. At the same time, the level of noise when increasing the number of trains per hour in the future was predicted.

Key words: acoustics, rapid transit railway, railway noise, effect regularity

摘要： 为了解海南东环铁路运行的噪声影响情况和规律，对已投入运行的海南东环铁路的海口段进行现场测量，得出列车运行期间的噪声随距离增加并不呈线声源衰减特性；在城区，对在没有行道树情况下运行的列车进行监测，得出行道树对轨道交通的降噪作用很明显；在列车运行线路周边，对不同楼层的噪声进行监测，得出不同楼层间的受噪声影响规律。最后对未来小时列车次数加密后的噪声进行预测。

关键词: 声学, 高速铁路, 轨道噪声, 影响规律