摘要
随着我国城市轨道交通建设快速发展,轨道交通运行所致沿线建筑物室内振动与二次噪声受到广泛关注。通过对不同速度工况下地铁地下线路R=310 m小半径曲线段隧道内轨道振动、室内振动和二次噪声进行现场测试,发现限速运营状态下小半径曲线段的内轨侧轮轨作用力比外轨侧大导致内轨侧振动大,且振动影响时间长,对小半径曲线内轨侧的振动噪声投诉多于外轨侧。处理投诉一些位于小半径曲线区域的振动噪声的措施,并不是限制运营速度使其越低越好,而是应结合振动、噪声影响时间,以让列车在小半径曲线段以平衡速度运行为最佳。
With the rapid development of urban rail transit in China,the indoor vibration and secondary noise caused by rail transit have been widely concerned.Through the field test of the track vibration in tunnel,indoor vibration and secondary noise in small radius curved section with R=310 m of the subway underground line at different train speeds,it is found that the inner rail side of the small-radius curve section has greater wheel-rail force than that of the outer rail side,resulting in greater vibration and longer vibration effect time on the inner rail side.And the complaints about vibration and noise on the inner rail side of the small-radius curve are more than those on the outer rail side.For some vibration and noise complaints in small radius curved sections,it is not necessary to limit the operating speed as low as possible,and it should be combined with the noise and vibration action time so that the train can operate at the balance speed on the small radius curved sections.
作者
刘鹏辉
牛瑞
吴士亮
李颖
LIU Penghui;NIU Rui;WU Shiliang;LI Ying(Railway Construction Research Institute,China Academy of Railway Sciences,Beijing 100081,China;Wuxi Metro Group Co.,Ltd,Wuxi 214000,Jiangsu,China;Postgraduate Department,China Academy of Railway Sciences,Beijing 100081,China)
出处
《噪声与振动控制》
北大核心
2025年第5期229-233,305,共6页
Noise and Vibration Control
基金
中国铁道科学研究院集团有限公司基金资助项目(2022YJ280)。
关键词
振动与波
轨道交通
运行速度
敏感建筑物
室内振动
二次辐射噪声
vibration and wave
rail transit
operating speed
sensitive buildings
indoor vibration
secondary radiated noise
