桂林理工大学学报Issue(2)：272-277,6.DOI:10.3969/j.issn.1674-9057.2014.02.009
轨道结构参数对地铁引起地面环境振动特性的影响分析
Effect of track parameters on ground-vibration characteristics induced by metro-train
摘要
Abstract
The effect of track parameters on ground-vibration characteristics induced by metro-train in the condi-tion of rail roughness was studied by FEM and on-site experiments.The results show that the ground vibration from metro train mainly is caused by roughness with wavelength of 0.3 -1.0 m.The decreasing fastener stiff-ness and increasing the mass of sleeper can reduce the ground vibration level in the range of 50-100 Hz and 30-100 Hz respectively.The decreasing supporting stiffness of slab can effectively reduce the ground vibration level in the range of 20-100 Hz with about 13.5 dB,but will cause ground-vibration increase in certain fre-quency.关键词
地下列车/轨道结构/地面振动/现场试验/数值计算Key words
metro-train/railway track/ground environment vibration characteristics/numeric analysis/field test分类
交通工程引用本文复制引用
肖桂元,韦红亮,杨圣春,王志驹..轨道结构参数对地铁引起地面环境振动特性的影响分析[J].桂林理工大学学报,2014,(2):272-277,6.基金项目
国家自然科学基金项目（51108110；51369010；41262011；41102202）；广西岩土力学与工程重点实验室项目（11-CX-01；11-KF-02）；广西矿冶与环境科学实验中心项目 （）
