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为了考察350 km/h高速列车运行状态下不同线路形式处的噪声水平,对已开通运行的京津城际铁路某车站北京端处路基、桥梁、路桥过渡段列车运行时辐射噪声进行测试与分析,得出京津城际铁路不同线路形式处的噪声强度。结果表明,在路基、桥梁、路桥过渡段三种线路形式中,列车通过桥梁段所产生的噪声最小,通过路桥过渡段产生的噪声最大,其研究结果对今后高速铁路降噪设计具有一定的参考价值。
In order to investigate the noise level of different line forms under the running condition of 350 km / h high-speed trains, the radiation noise during train operation of Beijing-Tianjin inter-city railway station at the end of Beijing is tested and analyzed , Come to Beijing-Tianjin intercity railway noise in the form of different lines. The results show that the noise produced by the train passing through the bridge section is the smallest and the noise produced by the transition section of road and bridge is the largest among the three types of roadbed in the transitional sections of roadbed, bridge and road bridge. The research results have certain reference to the design of the future high speed railway noise reduction value.