Experimental Study on Seismic Dynamic Characteristics of Shallow-Bias Tunnel with a Small Space

In order to obtain the seismic dynamic characteristics of a shallow-bias tunnel with a small space, a series of large-scale shaking table model tests were carried out. The key technology of the test is introduced in detail, for example, similar ratios of model, test equipment, testing model box, tes...

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Bibliographic Details
Published in:Shock and vibration 2018-01, Vol.2018 (2018), p.1-9
Main Authors: Hui, Yang, Niu, Jiayong, Xueliang, Jiang, Wang, Feifei
Format: Article
Language:English
Subjects:
Bias
Civil engineering
Dimensional analysis
Dynamic characteristics
Earthquakes
Geological engineering
Geology
Laboratories
Model testing
Seismic engineering
Seismic waves
Shake table tests
Shaking
Shear strength
Studies
Test equipment
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Summary:In order to obtain the seismic dynamic characteristics of a shallow-bias tunnel with a small space, a series of large-scale shaking table model tests were carried out. The key technology of the test is introduced in detail, for example, similar ratios of model, test equipment, testing model box, testing model, sensor arrangement, seismic waves, and testing system. The results show that the first predominant frequency is similar between measuring points. However, the second predominant frequency is highly different between measuring points. The first and second predominant frequencies gradually decrease with the increasing of input PGA. The rock stratum can shield seismic wave in the high frequency band. The research results provide reference for similar tunnels.
ISSN:1070-9622
1875-9203
DOI:10.1155/2018/6412841