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隧道建设(中英文) ›› 2018, Vol. 38 ›› Issue (S2): 379-383.DOI: 10.3973/j.issn.2096-4498.2018.S2.052

• 监控与维护 • 上一篇    下一篇

无锡地铁运行引起上马墩站振动的现场试验研究

张晓磊, 董国威, 李建平, 陈樟龙, 李义成   

  1. (同济大学地下建筑与工程系, 上海 200092; 岩土及地下工程教育部重点实验室, 上海 200092)
  • 收稿日期:2018-07-04 修回日期:2018-11-19 出版日期:2018-12-30 发布日期:2019-01-30
  • 作者简介:张晓磊(1987—),男, 江苏盐城人, 2018年毕业于同济大学,岩土工程专业,博士,工程师,现主要从事轨道交通诱发的环境振动及其控制等研究工作。Email: Xiaolei_Zhang@tongji.edu.cn。
  • 基金资助:

    国家重点基础研究发展计划(973计划)青年科学家项目(2014CB049101); 上海市工程结构安全重点实验室开放课题(2017-KF02)

Insitu Experimental Study of Metro Operationinduced Vibration of Shangmadun Station in Wuxi

ZHANG Xiaolei, DONG Guowei, LI Jianping, CHEN Zhanglong, LI Yicheng   

  1. (1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Shanghai 200092, China)
  • Received:2018-07-04 Revised:2018-11-19 Online:2018-12-30 Published:2019-01-30

摘要:

高频次的地铁运营引发的超量振动对于周边生活和工作造成了明显的负面影响,为了获取地铁诱发振动的传播规律,在无锡地区进行从车站到上盖物业的现场振动实测。在上马墩站搭建整套加速度信号振动测试系统,获取各测点3个方向时域加速度信号,分析结构在时域和频域的基本特征,对地铁运行造成上马墩站振动影响进行评价。研究发现: 1)垂向振动在通常情况下明显占优,横向、纵向振动相当; 2)上盖物业振动主要集中为25~50 Hz; 3)车站的Z振级接近规范规定白天限值,超出了夜间限值,有必要采取结构优化或减振措施对地铁运行引起的振动进行控制。

关键词: 无锡地铁, 现场测试, 上盖物业, 振动规律, 振动评价

Abstract:

The frequently passing trains would induce excessive vibrations to the surrounding environment. Hence, insitu vibration monitoring is carried out for Shangmadun Metro Station and properties above to learn the propagation rules of metro operationinduced vibration. And then, the three directional accelerations are acquired to analyze their timedomain and frequencydomain characteristics and evaluate the influence of vibration on the station. The results show that: (1) The vertical vibration is significantly more obvious than transverse and horizontal ones. (2) The vibration frequency of properties above the station mainly ranges from 25 Hz to 50 Hz. (3) The Level Z vibration of the station is within daytime limit and exceeds night limit, as a result, structural optimization and vibration reduction measures should be adopted to control the vibration.

Key words: Wuxi Metro, insitu experiment, property above metro station, vibration rules, vibration evaluation

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