小半径曲线地段钢轨波磨对于地面振动影响的测试分析  

Test and Analysis of Influence of Rail Corrugation on Ground Vibration of Curved Tracks

作　　者：杨哲 雷晓燕[1] 刘庆杰[1] 冯青松[1] YANG Zhe;LEI Xiaoyan;LUI Qingjie;FENG Qingsong(Engineering Research Center of Railway Environment Vibration and Noise of the Ministry of Education East China Jiaotong University,Nanchang 330013,China)

机构地区：[1]华东交通大学铁路环境振动与噪声教育部工程研究中心,南昌330013

出　　处：《噪声与振动控制》2022年第1期182-186,共5页Noise and Vibration Control

基　　金：国家自然科学基金资助项目(51868024);江西省自然科学基金资助项目(2020BAB204026)。

摘　　要：针对地铁小半径曲线地段钢轨波磨对于地面环境振动的影响,选取某地铁普通整体道床小半径曲线钢轨有波磨与无波磨地段车辆通过时的隧道内及地面振动状况进行测试,同时测量有波磨地段与无波磨地段钢轨波磨实际状况。从频域角度对数据分析整理,研究结果表明:钢轨波磨对于隧道内及地面振动存在显著增大作用;列车通过引起的振动在钢轨-轨道板-隧道壁-地面的传播过程中逐渐降低,并且高频振动的下降速度大于低频振动;短波波磨对于钢轨振动的影响较为剧烈,而长波波磨对地面环境振动影响较大。The influence of rail corrugation on the ground environment vibration in the area of curved section with small radius of the subway is studied.The vibration conditions in the tunnel and the ground when the vehicle passes through the small radius curved section of a general subway track bed is tested.At the same time,the actual condition of rail wave grinding is measured.The data is analyzed and sorted from the frequency domain point of view.The results show that rail wave grinding can significantly enlarge the vibrations of tunnel and ground,the vibration caused by the train passing decrea-ses gradually in its transfer process from the rail,through the rail plate and tunnel wall to the ground,and the decreasing rate of high-frequency vibration is higher than that of low-frequency vibration.

关 键 词：振动与波 现场实测 钢轨波磨 通过频率 地面环境振动 

分 类 号：TB535[理学—物理] U231[理学—声学]