| 软土地区地铁环境振动对精密仪器的影响研究 |
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| 引用本文： | 孙井林,刘郑琦,宋天昊,李俊玺,郭骁.软土地区地铁环境振动对精密仪器的影响研究[J].现代城市轨道交通,2021(2). |
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| 作者姓名： | 孙井林 刘郑琦 宋天昊 李俊玺 郭骁 |
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| 作者单位： | 中铁工程设计咨询集团有限公司 |
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| 摘 要： | 为评估软土地区地铁环境振动对精密仪器的影响,基于环境振动分析预测有限元仿真模型,模拟实际工况下距线路不同距离上的不同楼层内地板的振动响应。模拟计算分析表明,距隧道中心线20 m、50 m、100 m 3种工况中,距隧道中心线20 m、50 m的建筑物内振动超过精密仪器对环境振动的要求限值,距隧道中心线100 m的建筑物内仍有振动超限的风险,软土地区距隧道中心线100 m范围内不宜放置精密仪器。
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| 关 键 词： | 地铁 软土地区 环境振动 精密仪器 影响研究 |
Impact of subway environmental vibration on precision instruments in soft soil area |
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| Abstract: | In order to evaluate the impact of subway environmental vibration on precision instruments in soft soil area,based on the finite element simulation model of environmental vibration analysis and prediction,the vibration response of different floors at different distances from the line under actual working conditions is simulated.The simulation results show that the vibration values of buildings 20 m,50 m and 100 m away from the tunnel center line exceed the required limit values of precision instruments for environmental vibration.There are also potential risks of vibration out of limit in buildings 100 m away from the tunnel center line.It is not suitable to place precision instruments within 100 m away from the tunnel center line in soft soil area. |
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| Keywords: | subway soft soil area environmental vibration precision instrument impact study |
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