类矩形盾构隧道结构自振频率试验研究

发布时间：2018-06-20 16:20

本文选题：类矩形盾构 + 隧道结构　；参考：《现代隧道技术》2016年S1期

【摘要】：当结构体系发生自由振动时,其振动规律反映了体系的动力特性,而体系在动力作用下的响应情况又与其动力特性密切相关,因此结构体系的自振频率是反应其动力特性情况的重要指标。文章以宁波地铁3号线类矩形盾构工程段为背景,通过敲击法来研究类矩形盾构隧道结构的自振频率,可为后续列车荷载下的隧道振动特性及减振降噪措施的研究提供依据。
[Abstract]:When the free vibration of the structure system occurs, its vibration law reflects the dynamic characteristics of the system, and the response of the system under the dynamic action is closely related to its dynamic characteristics. Therefore, the natural frequency of the structure system is an important index to reflect its dynamic characteristics. Based on the rectangular shield engineering section of Ningbo Metro Line 3, this paper studies the natural vibration frequency of the rectangular shield tunnel structure by tapping method, which can provide the basis for the study of the vibration characteristics of the tunnel under the following train load and the measures to reduce vibration and noise.
【作者单位】：同济大学地下建筑与工程系;上海隧道工程有限公司;
【基金】：上海市科学技术委员会资助项目(No.14DZ1207900) 宁波市重大科技攻关资助项目(No.2015C110017)
【分类号】：U451.5

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