地铁运行对沿线不同砌体结构的振动影响研究  

Study on the Vibration of Different Types of Masonry Structures along the Metro Caused by Train Running

作　　者：赵江涛 苏洁[2] 吴奇兵 宋伟 李明星 Zhao Jiangtao;Su Jie;Wu Qibing;Song Wei;Li Mingxing(Beijing Muntcipal Engineering Research Insututet Beijing 100037,P.R.China;Tunnel and Underground Engineering Research Center of Ministry of Education,Beijing Jiaotong University,Beijing 100044,P.R.China;Beijing Xuanfang Dade Real Estate Investment Co.Ltd.,Beijing 100052,P.R.China)

机构地区：[1]北京市市政工程研究院,北京100037 [2]北京交通大学隧道与地下工程教育部工程研究中心,北京100044 [3]北京宣房大德置业投资有限公司,北京100052

出　　处：《地下空间与工程学报》2021年第5期1578-1585,1612,共9页Chinese Journal of Underground Space and Engineering

基　　金：北京市西城区财政科技专项项目(XCSTS-SD2019-11)。

摘　　要：随着地铁建设规模的不断扩大,地铁列车运行对沿线砌体结构振动影响日趋严重。针对这一问题,以某地铁线路邻近砌体结构为研究对象,建立了车辆轨道隧道地层砌体结构耦合模型,分析了砌体结构层数、墙体材料、基础材料对振动响应分布规律的影响。结果表明,墙体材料除石砌体外,均在不同层数出现振动响应放大现象,且配筋砌体最大;各种基础材料均出现振动响应放大现象,且峰值频域范围均为40~50 Hz;对于不同层数的砌体结构,水平向、垂向倍频程峰值个数略有区别,但每种层数下的最大加速度振级基本相同,均为60 dB左右。研究成果对地铁沿线砌体结构的振动控制具有指导意义。With the continuous expansion of the scale of subway construction,the impact of subway train operation on the vibration of masonry structures along the line has become increasingly serious.Aiming at this problem,the adjacent masonry structure of a certain line was taken as the research object,and the vehicle-track-tunnel-stratigraphic-masonry structure coupling model was established,and the influences of masonry structure layer,wall material and foundation material on the distribution law of vibration response were analyzed.The results show that the wall material has vibration response amplification phenomenon in different layers except stone cladding,and the reinforcement rein-forced masonry is the largest;all kinds of basic materials have vibration response amplification phenomenon,and the peak frequency range is 40〜50 Hz;for different layers of masonry structure,the horizontal and vertical octave peaks are slightly different,but the maximum acceleration vibration level under each layer is basically the same,both about 60 dB.The research results have guiding significance for the vibration control of masonry structures along the subway.

关 键 词：地铁振动 砌体结构 数值模拟 振动放大 

分 类 号：U213.1[交通运输工程—道路与铁道工程]