基于传递函数标定法的异型盾构隧道地铁列车运行振动分析
张啟乐1董连东1刘林芽2拜立岗1马广驰1李枫1
Vibration Analysis of Metro Train Operating in Special Shape Shield Tunnel Based on Transfer Function Calibration Method
ZHANG QileDONG LiandongLIU LinyaBAI LigangMA GuangchiLI Feng
-
作者信息:1.中国电子系统工程第二建设有限公司,214028,无锡；
2.华东交通大学铁路环境振动与噪声教育部工程研究中心,330013,南昌
-
Affiliation:China Electronic System Engineering No.2 Construction Co., Ltd., 214028, Wuxi, China
-
关键词:
-
Key words:
-
DOI:10.16037/j.1007-869x.2021.12.028
-
中图分类号/CLCN:U451+3
-
栏目/Col:研究报告
摘要:
基于某城市地铁的异型盾构隧道，采用实际场地传递函数标定数值模型的方法，对异型盾构隧道地铁振动问题进行了研究。研究结果表明：异型盾构隧道埋深增加量与Z振级衰减量不是线性关系；单从地铁环境振动控制角度而言，存在1个最佳经济埋深，本算例的最佳经济埋深为15~20 m；地铁列车运行引起的80 Hz以上频段的振动衰减非常快，传至地面时振动峰值频率为63 Hz；若采用钢弹簧浮置板进行隔振，隧道正上方地面位置Z计权总振级可以减小14.6 dB。
Abstracts:
Based on the special shape shield tunnel of certain urban metro, the issue of metro vibration in special shape shield tunnel is studied, adopting the method of transfer function calibration numerical model on actual site. The results show that: the increased value of tunnel buried depth is not linear with the VLz attenuation. From the perspective of vibration control of metro environment, there is an optimal economic burial depth. The optimal economic burial depth of this study case is 15~20 m. Vibration caused by metro train operating with a frequency above 80 Hz attenuates very quickly, and when it propagates to the ground, the peak frequency is 63 Hz. If FST (floating slab track) is used for vibration isolation in track system, the VLz of ground surface right above the tunnel can be reduced by 14.6 dB.
引文 / Ref:
张啟乐，董连东，刘林芽，等.基于传递函数标定法的异型盾构隧道地铁列车运行振动分析[J].城市轨道交通研究，2021，24(12):141.
ZHANG Qile，DONG Liandong，LIU Linya，et al.Vibration analysis of metro train operating in special shape shield tunnel based on transfer function calibration method[J].Urban Mass Transit，2021，24(12)：141.
ZHANG Qile，DONG Liandong，LIU Linya，et al.Vibration analysis of metro train operating in special shape shield tunnel based on transfer function calibration method[J].Urban Mass Transit，2021，24(12)：141.
- 上一篇: 高铁物流运输模式及其可行性
- 下一篇: 市域轨道交通地下敷设方式的不利影响亟待引起重视
过刊浏览
资料下载
友情链接