铁道标准设计2018，Vol.62Issue(7)：63-67,5.DOI:10.13238/j.issn.1004-2954.201706200006
时速130km城际铁路振源特性试验研究
Experimental Study on Vibration Source Characteristics of 130 km/h Intercity Railway
摘要
Abstract
In order to study the vibration source characteristics of an intercity railway,the vibration of the rail,slab and tunnel wall caused by the passing of trains are tested in-situ.The tested data are analyzed from three aspects: time domain,frequency domain and time-frequency domain.The results show that: the energy of rail concentrates on an interval from 400 Hz to 1 000 Hz,and the main vibration is of high frequency vibration.However,the energy of slab concentrates on an interval from 700 Hz to 900 Hz.And for the tunnel wall,it is from 40 Hz to 60 Hz,while most of the vibration is of low frequency vibration.The average value of total vibration delivered from the nail to the slab is reduced by 44 dB with the attenuation about 28％.When vibration is delivered from the slab to the tunnel wall,the attenuation is about 27％and the average value of total vibration is reduced by 31 dB.关键词
城际铁路/振源/现场测试/小波变换/振动特性Key words
Intercity railway/Vibration source/In-situ test/Wavelet transform/Vibration characteristics分类
交通工程引用本文复制引用
陈俊豪,柯文华,陈嵘,赵才友,易强..时速130km城际铁路振源特性试验研究[J].铁道标准设计,2018,62(7):63-67,5.基金项目
国家自然科学基金(51508479) （51508479）
四川省科技计划项目(2017GZ0373) （2017GZ0373）
