Dynamic response induced by running subway in saturated ground

被引：7
|
作者：
Gao G.-Y. [1 ]
He J.-F. [2 ]
Li J. [1 ]
机构：
[1] Key Laboratory of Geotechnical and Underground Engineering, Tongji University
[2] Yibin Municipal Bureau of Transportation, Sichuan Province
来源：
Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2010年 / 44卷 / 10期
关键词：
Dynamic response; Inverse Fourier transform; Saturated soil; Subway moving load; U-w format 2.5D finite element;
D O I：
10.3785/j.issn.1008-973X.2010.10.014
中图分类号：
学科分类号：
摘要：
The Galerkin method was used to derive the u-w format 2.5D finite element equation in the frequency domain and wave-number domain by Fourier transform based on Biot's wave propagation equations for a saturated porous medium. The three-dimensional time-space domain dynamic response of the track and the ground was obtained from the fast inverse Fourier transform. The model of 2.5D finite element model was verified by the calculation example. The subway-tunnel-saturated ground's dynamic interaction model was established to analyze the dynamic response induced by subway moving load. Results showed that the oscillation frequency of subway moving loads greatly influenced the vibration amplitude and the attenuation law. It is the best measures to control the oscillation frequency for reducing the environment vibration.
引用
收藏
页码：1925 / 1930
页数：5
相关论文
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