不同隧道埋深下列车运行诱发环境振动研究  

Research on Environmental Vibration Induced by Vehicle Operation under Different Tunnel Depth Conditions

作　　者：张森[1] 朱利明[1] 王霆 ZHANG Sen;ZHU Li-ming;WANG Ting(Nanjing Tech University,Nanjing,Jiangsu 210009,China;Nanjing Metro Construction Co.,Ltd.,Nanjing,Jiangsu 210009,China)

机构地区：[1]南京工业大学,江苏南京210009 [2]南京地铁建设有限责任公司,江苏南京210000

出　　处：《黑龙江交通科技》2021年第4期182-184,共3页Communications Science and Technology Heilongjiang

基　　金：江苏省重点研发计划(社会发展)项目;文物受城市轨道交通振动影响及保护方法研究;(BE2019613)。

摘　　要：考虑到地铁列车运行诱发地面振动的大小可能与隧道埋深有关,开展了地铁列车在不同隧道埋深下运行引起地面振动的传播规律和衰减特性研究,结果表明:不同的隧道埋深并不会改变地表振动强度随着与振源距离增大而衰减的规律,但由于埋深不同会导致振动放大区的起始位置不同,故在某些区段,振动强度会随着埋深的增大而加强,埋深对振动放大区的振动响应峰值的大小和位置均产生了较大的影响。Considering that the magnitude of ground vibration induced by subway train may be related to the buried depth of the tunnel,this paper carried out a study on the propagation law and attenuation characteristics of ground vibration caused by subway trains running under different tunnel depths.The results show that different tunnel burial depths will not change the law of the attenuation of the vibration intensity of the ground surface as the distance from the vibration source increases,but because of the different burial depths,the starting position of the vibration amplification zone will be different,so in some sections,The vibration intensity will increase with the increase of the buried depth,and the buried depth has a greater impact on the size and position of the vibration response peak in the vibration amplification zone.

关 键 词：环境振动 列车运行 隧道埋深 有限元模拟 影响分析 

分 类 号：U492[交通运输工程—交通运输规划与管理]