| 地铁与路面交通振动对精密仪器的影响测试 |
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| 引用本文： | 马蒙,韩嵩,刘维宁,刘卫丰,孙晓静,王文斌,李克飞.地铁与路面交通振动对精密仪器的影响测试[J].北方交通大学学报,2012(4):50-54. |
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| 作者姓名： | 马蒙 韩嵩 刘维宁 刘卫丰 孙晓静 王文斌 李克飞 |
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| 作者单位： | [1]北京交通大学土木建筑工程学院,北京100044 [2]北京京港地铁有限公司,北京100068 [3]中国铁道科学研究院,北京100044 |
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| 基金项目： | 国家自然科学基金资助项目（51008017）; 中央高校基本科研业务费专项资金资助项目（2009JBM075,2009JBM074） |
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| 摘 要： | 为评价地铁列车与路面交通振动对某科研机构实验室内精密仪器的影响,在该实验室内对交通环境振动响应进行了全天候连续测试监控.将不同交通工况下实验室振动响应与电镜安装的环境振动要求进行比较.结果表明：钢弹簧浮置板轨道对控制室内振动响应作用明显,总的交通环境振动超过仪器安装对振动的要求,应采取必要的被动隔振措施.建议被动隔振平台的工作频率应小于4 Hz,且在5 Hz附近的隔振量不能低于5.5 dB.
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| 关 键 词： | 交通振动 振动测试 浮置板轨道 精密仪器 被动隔振 |
Measurement of vibration influence on sensitive equipment induced by metro and road traffic |
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| MA Meng,HAN Song,LIU Weining,LIU Weifeng,SUN Xiaojing,WANG Wenbin,LI Kefei.Measurement of vibration influence on sensitive equipment induced by metro and road traffic[J].Journal of Northern Jiaotong University,2012(4):50-54. |
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| Authors: | MA Meng HAN Song LIU Weining LIU Weifeng SUN Xiaojing WANG Wenbin LI Kefei |
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| Institution: | 1. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China; Beijing MTR Corporation, Beijing 100068, China;3. China Academy of Railway Sciences, Beijing 100044,China) |
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| Abstract: | In order to estimate traffic-generated vibration influence on sensitive instruments in a labora- tory building of one research institute, vibration measurement was performed in the laboratory. Com- pared different traffic conditions with vibration criteria of TEMs for installation, results show that floating slab track with steel spring is efficient to mitigate the train-induced vibration level. Environ- mental vibrations induced by traffic are larger than the limits of criteria and affect the instruments in the laboratory. Some more passive isolation measures should be taken to ensure instruments could be installed and work without vibration disturbance in the laboratory. The work frequencies of passive isolator are suggested not to be larger than 4Hz and its transmissibility should be at least 5.5 dB around 5 Hz. |
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| Keywords: | vibrations induced by traffic vibration measurement floating slab track sensitive instru- ments passive isolation |
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