Analysis on Acceleration Response of Tunnel Lining under Vibration Load of Train with Speed of 300 km/h

被引：0
|
作者：
Tian T. [1 ]
Li G. [1 ]
Qi F. [1 ]
Dong J. [2 ]
机构：
[1] China Academy of Railway Science Co., Ltd., Beijing
[2] Beijing Higher Institution Engineering Research Center of Structural Engineering and New Materials, Beijing University of Civil Engineering and Architecture, Beijing
来源：
Tiedao Xuebao/Journal of the China Railway Society | 2020年 / 42卷 / 06期
关键词：
Dynamic response; Field test; High-speed train load; Numerical simulation; Tunnel lining arch;
D O I：
10.3969/j.issn.1001-8360.2020.06.015
中图分类号：
学科分类号：
摘要：
In this paper, the acceleration response of tunnel lining of high-speed railway under the load of the train with the speed of 300 km/h was studied by field test and finite element numerical model calculation. The field lining vibration test of the high-speed railway tunnel and the comparison of numerical model calculation results verified the correctness and reliability of lining dynamic calculation model. The vertical vibration acceleration of the vibration load in the lining arch ring decreased from the corner of the wall to the vault, while the transverse vibration acceleration of the arch ring decreased first and then increased from the corner of the wall to the vault. The absolute values of the two types of acceleration show that the acceleration near the train side is obviously greater than that far away from the train side. It is confirmed that the second-order natural frequency of EMU train wheel set has a great influence on the vibration acceleration response frequency of tunnel lining arch ring. The empirical trigonometric function formula of acceleration transfer of lateral and vertical vibration response of tunnel lining arch ring under the action of 300 km/h train was obtained by fitting. The research results can provide a reference for the subsequent study of the vibration response mechanism of the tunnel lining under the train load. © 2020, Department of Journal of the China Railway Society. All right reserved.
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页码：112 / 120
页数：8
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