北京地铁减振轨道钢轨波磨治理效果试验研究
Experimental Study on Rail Corrugation Treatment for Vibration Reduction Tracks in Beijing Subway
崔日新 1石熠 1李玉路 2王进 3李仲华1
作者信息
- 1. 北京市轨道交通建设管理有限公司,北京 100068;城市轨道交通全自动运行系统与安全监控北京市重点实验室,北京 100068
- 2. 中国铁道科学研究院集团有限公司城市轨道交通中心,北京 100081
- 3. 北京城市快轨建设管理有限公司,北京 100068
- 折叠
摘要
为验证钢轨阻尼装置对减振轨道钢轨波磨的治理效果,选取北京地铁梯形轨枕、钢弹簧浮置板两种减振轨道结构,对试验段添加钢轨阻尼装置前后的轨道及隧道振动、轨旁噪声特性进行测试对比,并对钢轨波磨的发展进行跟踪调查.结果表明:在梯形轨枕轨道上安装钢轨阻尼装置可在较宽频域范围内获得良好的减振降噪效果,可将钢轨振动与轨旁噪声分别降低9.7 dB、11dB(A);在钢弹簧浮置板轨道上安装钢轨阻尼装置,可使其工作频率范围内的钢轨振动与轨旁噪声分别降低8.3 dB、3dB(A).长期跟踪测试表明:钢轨阻尼装置可使减振轨道钢轨波磨的发展速率延长一倍以上.
Abstract
To verify the effects of rail damping devices in the rail corrugation treatment for vibration reduction tracks,rail damping devices were added to a ladder-type sleeper track and a steel-spring floating slab track,respectively,in this study.The vibration and trackside noise characteristics of the two vibration-reduction tracks were reported,and the development of rail corrugation was tracked.The results show that the rail damping devices installed on the ladder-type sleeper track can achieve positive effects in vibration and noise reduction in a wide band range,which can reduce rail vibration and trackside noise by 9.7 dB and 11 dB(A),respectively.The rail damping devices installed on the steel-spring floating slab track can reduce rail vibration and trackside noise by 8.3 dB and 3 dB(A),respectively,within their operational frequency range.Long-term tracking tests revealed that the installation of rail damping devices can at least halve the rate of rail corrugation development on vibration reduction tracks.
关键词
城市轨道交通/波磨/梯形轨枕轨道/钢弹簧浮置板轨道/阻尼装置/减振降噪Key words
urban rail transit/rail corrugation/ladder-type sleeper track/steel-spring floating-slab track/damping device/vibration and noise reduction引用本文复制引用
出版年
2024
NETL
NSTL
万方数据