温州市域铁路S1线是我国市域铁路先行先试的示范工程,为了给新建市域铁路环评工作振动源强的获取提供技术参考,在温州市域S1线开展了环境振动源强的试验研究。研究结果及建议：相比地面测点,桥面测点的测试数据具备更好的稳定性和可靠性,市域铁路高架线振动源强类比测试建议采用桥面测点；采用ISO 2631-1:1985计权标准,振动源强VLzmax的测量值较采用ISO 2631-1:1997计权标准小约2~4dB；市域铁路高架线路环境振动源强建议取94.1dB(ISO 2631-1:1997计权标准)或90.6dB(ISO 2631-1:1985计权标准),对应线路工况为直线,列车通过速度95km/h。列车运行速度每增加15km/h,修正量取+3~5dB,曲线地段曲线半径每减小700m,修正量取+4.5dB。

Wenzhou suburban railway line S1 is the first pilot demonstration project of suburban railway in China, in order to provide technical reference for environmental assessment of suburban railway, an experimental study on the source intensity of environmental vibration was carried out in S1 line. The results and suggestions are as follows, the test data of the bridge deck measuring points have better stability and reliability compared with the ground measuring points, so the bridge deck measuring point is recommended for the analogy test of vibration source intensity of suburban railway elevated line. The measurements of vibration source intensity VLzmax using ISO 2631-1:1985 weighting standard is about 2~4dB smaller than that using ISO 2631-1:1997 weighting standard. 94.1dB(using ISO 2631-1:1997 weighting standard) or 90.6dB(using ISO 2631-1:1985 weighting standard) is recommended for vibration source intensity of suburban railway, its corresponding line condition is straight line, and the train passing speed is 95km/h. For every 15km/h increase of train passing speed, the recommended correction value is +3~5dB. For every 700m reduction of curve radius in curve section, the recommended correction value is +4.5dB.

U231.1

中铁第四勘察设计院集团有限公司重点课题(2018K126),湖北省技术创新重大专项（2019AAA059）