列车振动对水下隧道影响研究综述  

REVIEW OF THE IMPACT OF TRAIN VIBRATIONS ON UNDERWATER TUNNELS

作　　者：陈超峰 丁智 孙宏磊 王震 CHEN Chaofeng;IDNG Zhi;SUN Honglei;WANG Zhen(College of Civil Engineering,Zhejiang University of Technology,Hangzhou 310014,China;Department of Civil Engineering,HangZhou City University,Hangzhou 310015,China;Key Laboratory of Safe Construction and Intelligent Maintenance for Urban Shield Tunnels of Zhejiang Province,Hangzhou 310015,China)

机构地区：[1]浙江工业大学土木工程学院,杭州310014 [2]浙大城市学院土木工程系,杭州310015 [3]浙江省城市盾构隧道安全建造与智能养护重点实验室,杭州310015

出　　处：《低温建筑技术》2024年第10期81-85,共5页Low Temperature Architecture Technology

基　　金：国家自然科学基金项目(52178400、52278418);浙江省“尖兵”“领雁”研发攻关计划(2023C03182)。

摘　　要：列车荷载作用引起的动力响应,严重时会造成隧道结构及洞周土体变形、开裂等病害,进而影响隧道的运营安全。为了探究列车振动对水下隧道的具体影响,通过归纳总结列车运行过程中隧道结构及洞周土体响应的影响因素,分析了隧道-土系统的动力响应特性。研究发现当列车通过时,隧道结构的应力变化以第一主应力为主,隧道主要承受压应力作用,表现为“竖向增大、横向收敛”的压缩变形特征。洞周土体动力响应表现为周期性波动,距离隧道越近的土体响应越显著。The dynamic response of tunnel structures and surrounding soil due to train loads can lead to serious is-sues such as deformation and cracking of the tunnel structure,which affects operational safety.To investigate the im-pact of train vibrations on underwater tunnels,factors influencing the tunnel structure and surrounding soil respons-es caused by train operations were summarized,the dynamic response characteristics of the tunnel-soil system were analyzed.It was found that the stress changes in the tunnel structure during train passage are predominantly gov-erned by the first principal stress,with the tunnel mainly experiencing compressive stress,this is manifested as"in-creased vertical and convergent horizontal"compressive deformation characterized.The dynamic response of the sur-rounding soil exhibits periodic fluctuations,with responses being more pronounced the closer the soil is to the tunnel.

关 键 词：列车振动 水下隧道 动力响应 

分 类 号：TU435[建筑科学—岩土工程]