RESEARCH ARTICLE


Seismic Resistance and Damping Model Test and Numerical Simulation of Highway Tunnel



Sheng Bao Zheng*, 1, Shu Ping Jiang2
1 Chongqing Jiaotong University, Chongqing, 400074, China
2 Chongqing Communications Research and Design Insti-tute, Chongqing, 400074, China


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Creative Commons License
© 2015 Zheng and Jiang;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Abstract

In this paper,we established a seismic resistance and damping model to study the effects of tunnel under seismic waves.We took the entrance of Galongla Tunnel as prototype, drafted the similarity relationships of the model.Damping layers and the measuring points of shaking table model have been arranged. We carried out loading test of the shaking table. Compared with the results of finite element analysis, the damping ratio has been defined to analyze the dynamic characteristics and the effect of damping layers. We come to conclusion that damping layers have some effects and surrounding rocks can filter high frequency components of the seismic waves.

Keywords: Damping layer, FE model, damping ratio, model test. seismic wave, tunnel.