首页|列车振动对水下隧道影响研究综述

列车振动对水下隧道影响研究综述

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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.
REVIEW OF THE IMPACT OF TRAIN VIBRATIONS ON UNDERWATER TUNNELS
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.

train vibrationsunderwater tunneldynamic response

陈超峰、丁智、孙宏磊、王震

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浙江工业大学土木工程学院,杭州 310014

浙大城市学院土木工程系,杭州 310015

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

列车振动 水下隧道 动力响应

2024

低温建筑技术
黑龙江省寒地建筑科学研究院

低温建筑技术

影响因子:0.237
ISSN:1001-6864
年,卷(期):2024.46(10)