| 运行列车引起的周围地面振动规律研究 |
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| 引用本文： | 陈建国,夏禾,陈树礼,苏木标.运行列车引起的周围地面振动规律研究[J].工程力学,2010(1). |
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| 作者姓名： | 陈建国 夏禾 陈树礼 苏木标 |
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| 作者单位： | 北京交通大学土木建筑学院;石家庄铁道学院土木分院; |
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| 基金项目： | 国家自然科学基金重点项目(50538010);;比利时-中国政府合作项目(BIL07/07);;北京市自然科学基金项目(8082021) |
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| 摘 要： | 在京广铁路线附近进行了现场试验,测试分析了速度在21km/h―128km/h范围内运行列车引起的地面振动。结果表明:运行列车引起的地面振动的频率集中在10Hz―100Hz,车速对地面水平向振动的频率有一定影响;地面振动随至振源距离的增大呈波动性衰减;货物列车引起的地面加速度振级在各个方向上均明显大于旅客列车,其差值一般在10dB左右;列车引起的地面竖向振动大于两个方向的水平向振动,竖向振级为60dB―110dB;垂直线路的水平向振级为50dB―95dB;平行线路的水平向振级为55dB―80dB;线路附近的地面振动超过了我国关于环境振动规范的规定,说明运行列车引起的环境振动问题应当引起重视。
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| 关 键 词： | 列车 速度 地面振动 频率 试验 |
INVESTIGATION ON RUNNING-TRAIN-INDUCED GROUND VIBRATIONS NEAR RAILWAY |
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| CHEN Jian-guo,XIA He,CHEN Shu-li,SU Mu-biao.INVESTIGATION ON RUNNING-TRAIN-INDUCED GROUND VIBRATIONS NEAR RAILWAY[J].Engineering Mechanics,2010(1). |
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| Authors: | CHEN Jian-guo XIA He CHEN Shu-li SU Mu-biao |
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| Affiliation: | 1.School of Civil Engineering;Beijing Jiaotong University;Beijing 100044;China;2.School of Civil Engineering;Shijiazhuang Railway Institute;Shijiazhuang;Hebei 050043;China |
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| Abstract: | A field experiment was carried out near the Beijing-Guangzhou railway line to study the ground vibrations induced by running trains.The train speed in the experiment was from 21km/h to 128km/h.The experimental results show that the frequencies of ground vibrations induced by moving trains range from 10Hz to 100Hz and train speed has some effect on the horizontal vibration frequencies.Generally,the ground vibration levels attenuate with the distance to the track with certain waving patterns.The ground vibrat... |
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| Keywords: | train speed ground vibration frequency experiment |
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