Studies on Ground Environmental Vibration Induced by Urban Rail Transit

Abstract:

In order to offer theoretical basis for the vibration prevention and noise reduction for the area along urban rail traffic line, the propagation laws of environmental vibration are summarized by analyzing observation data in time and frequency domain based on actual field observation data in Beijing. The mathematical statistics method under the criterion of least-squares has been used to study the vibration propagation and to establish the empirical formula of vertical ground vibration. The results obtained from the empirical formulas proposed agree with the results of field observation well. The vertical ground vibration level is much higher than that of horizontal. So the vertical ground vibration level is the most important aspect when evaluating ground environmental vibration level. The field response near the rail depends on the high frequency vibration caused by moving train and that far from the rail is dominated by the natural vibration frequency of train and the field vibration. The response amplitude of environmental vibration would be changed when load changed.

• Periodical: Applied Mechanics and Materials (Volumes 34-35)
• Pages: 1886-1890
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.34-35.1886
• Online since: October 2010
• Authors: Lian Cheng Dong, Guang Ying Li, Yan Juan Yang, Xia Xin Tao
• Keywords: Ground Environmental Vibration, Propagation Law, Urban Rail Transit (URT)

References

[1] Yang Y B, Hung H H, Chang D W. Train-induced wave propagation in layered soils using finite/infinite element simulation. Soil Dynamics and Earthquake Engineering(2003).

DOI: 10.1016/s0267-7261(03)00003-4

[2] Xia He，Cao Yanmei. Problem of railway traffic induced vibrations of environments，Journal of railway science and engineering and engineering(2004).

[3] Li Xiaolin. Study on Influence of vibration induced by subway train on ground and ground structures. Beijing: Beijing University Of Technology(2003).

[4] Sheng X, Jones C J C, Petyt M. Ground vibration generated by a load moving along a railway rail. Journal of Sound and Vibration(1999).

DOI: 10.1006/jsvi.1999.2406

[5] Kurze UJ. Tools for measuring prediction and reducing the environmental impact from railway noise and vibration. Journal of Sound and Vibration(1996).

DOI: 10.1006/jsvi.1996.0264

[6] K.A. Ravshanovich, H. Yamaguchi, Y. Matsumoto, etc. Mechanism of noise generation from a modular expansion joint under vehicle passage. Engineering Structures(2007).

DOI: 10.1016/j.engstruct.2006.11.016

[7] Mao Yuquan. The Influence of Environmental Vibration and Its Prevention and Cure， construction & design for project(2002).