The vibration caused by the operation of underground high-speed railway propagates through the surrounding strata, which will cause the secondary vibration of nearby underground structures and adjacent buildings above ground, thus affecting the surrounding environment and the performance of buildings. Taking a commercial comprehensive building as the background, a three-dimensional finite element analysis model of "tunnel-soil-building floor-superstructure" is established to calculate the structural vibration response of underground high-speed railway.The vibration reduction and isolation effect of vertical vibration isolation bearing is studied according to the vibration control standard. The results show that the vibration of the building near the underground high-speed railway line exceeds the limit without taking vibration reduction measures. The vertical vibration isolation bearing can effectively restrain the vibration response of the building structure. It can reduce the average vibration level of the building floor by 4.2dB ~ 7.6dB with different parameter. Considering the effect of vibration isolation and the vertical deformation, it is suggested that the damping ratio of the vibration isolation bearing should be 0.01 and the vertical stiffness should be 130kN/mm. Finally, the parameter design method of vertical vibration isolation bearing is obtained, which can provide necessary guidance for follow-up engineering application.
Key words
underground high-speed railway /
whole process analysis /
vibration assessment /
vibration isolation support /
vibration reduction
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
References
[1] 陈建琪,孙勇,张晓敏. 高速铁路环境振动影响综述与实测研究[J]. 工业安全与环保, 2019, 45(03):73-78.
CHEN Jian-qi, SUN Yong, ZHANG Xiao-min. Research of review and measurement on environmental vibration influence induced by high-speed railway[J]. Industrial Safety and Environmental Protection, 2019, 45(03):73-78.
[2] Masoud S, Anish K, James A. Measurement and prediction of train-induced vibrations in a full-scale building[J]. Engineering Structures, 2014, 77(15):119-128.
[3] 王子林. 高速铁路列车振动对周围环境的影响以及解决方案[D]. 石家庄:石家庄铁道大学, 2018.
[4] P. Galvin，J. Dominguez.High-speed train-induced ground motion and interaction with structures[J].Journal of Sound and Vibration,2007,307(3/4/5):755-777
[5] Kirzhner F, Rosenhouse G, Zimmels Y. Attenuation of noise and vibration caused by underground trains, using soil replacement[J]. Tunnelling and Underground Space Technology, 2006, 21(5):561-567.
[6] Fiala P, Degrande G, Augusztinovicz F. Numerical modelling of ground-borne noise and vibration in buildings due to surface rail traffic[J]. Journal of Sound and Vibration, 2007, 301(3-5):718-738.
[7] 杨永斌，高速列车所导致之土壤振动分析[R]. 台北：中兴工程顾问社，1996
[8] 谷音,刘晶波,杜义欣. 三维一致粘弹性人工边界及等效粘弹性边界单元[J]. 工程力学, 2007, 24(12):31-37.
GU Yin, LIU Jing-Bo, DU Yi-Xin.3D Consistent Viscous-Spring Artificial Boundary and Viscous-Spring Boundary Element.[J]. Engineering Mechanics, 2007, 24(12):31-37.
[9] GB 10070-88 城市区域环境振动标准[S]. 北京:国家环境保护局, 1988.
[10] JGJ/T 170-2009 城市轨道交通引起建筑物振动与二次辐射噪声限值及其测量方法标准[S]. 北京:中国建筑工业出版社, 2009.
[11] GB 50355-2018 住宅建筑室内振动限值及其测量方法标准[S]. 北京:中国建筑工业出版社, 2018.
[12] 谢伟平,王政印,孙亮明. 地铁车辆段新型隔振支座的减振效果研究[J]. 振动与冲击, 2018,37(10):63-70.
XIE Wei-Ping, WANG Zhen-yin, SUN Liang-ming. Vibration reduction effect of a new isolation bearing for a metro depot[J]. Journal of Building Structures, 2018,37(10):63-70.
[13] GB-T 1972-2005 碟形弹簧[S]. 北京: 国家质量监督检验检疫总局, 2005.
[14] 王田友. 地铁运行所致环境振动与建筑物隔振方法研究[D]. 上海:同济大学, 2008.
[15] 茅玉泉. 建筑结构防振设计与应用[M]. 北京:机械工业出版社, 2011:150-162.
{{custom_fnGroup.title_en}}
Footnotes
{{custom_fn.content}}
PDF(5067 KB)
