Shaking-table tests for seismic response of tunnel-soil system affected by adjacent upper structure

被引：0
|
作者：
Li Y. [1 ]
Tian Y. [1 ]
Zong J. [1 ]
Ma G. [1 ]
机构：
[1] School of Civil Engineering and Transportation, Hebei University of Technology, Tianjin
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2020年 / 39卷 / 03期
关键词：
Acceleration; Shaking-table test; Strain; Tunnel-soil-adjacent upper structure system;
D O I：
10.13465/j.cnki.jvs.2020.03.032
中图分类号：
学科分类号：
摘要：
In order to study seismic response laws of a tunnel-soil system under existing upper structure, a ground surface structure and underground upper and lower parallel tunnels system were taken as background, shaking-table tests were conducted for a tunnel-soil-adjacent upper structure system on soft soil site. Here, the general situation of the overall experiment was introduced including shaking table performance and model material, dynamic similarity relations of model's various physical quantities, model structure sizes, boundary conditions inside model box chosen according to existing studies, positions of sensors in model, and seismic waves suitable for the site and loading scheme. Then, seismic responses of upper and lower parallel tunnels and soil were analyzed from two aspects of acceleration and strain under existing upper structure. The test results showed that soil's peak acceleration value increases from bottom to top along depth and soil's on upper part of tunnel increases obviously, while with increase in input peak acceleration value, soil's acceleration amplification coefficient decreases; under action of seismic waves, acceleration response of upper tunnel is larger than that of lower tunnel, peak strain values of upper tunnel's arch waist and arch foot as well as lower tunnel's arch shoulder and arch foot are the maximum. © 2020, Editorial Office of Journal of Vibration and Shock. All right reserved.
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页码：233 / 241and259
相关论文
共 18 条
  • [1] Du X., Wang G., Lu D., Earthquake damage mechanism analysis of Dakai Metro station by Kobe earthquake, Journal of Disaster Prevention and Mitigation Engineering, 36, 2, pp. 165-171, (2016)
  • [2] Wang R., Luo Q., Analysis of destruction imagination of underground structure and tunnel in Kobe Earthquake, Journal of Catastrophology, 13, 2, pp. 63-66, (1998)
  • [3] Gong B., Zhao D., Experimental study on dynamic interaction of structure and soil, Underground Space, 22, 4, pp. 320-324, (2002)
  • [4] Zhuang H., Chen G., Analysis of nonlinear earthquake response of metro double-tunnels, Earthquake Engineering and Engineering Vibration, 26, 2, pp. 131-137, (2006)
  • [5] Yang L., Ji Q., Zheng Y., Et al., Shaking table model test of subway station structure of soft soil, Modern Tunnelling Technology, 40, 1, pp. 7-11, (2003)
  • [6] Li F., Zhao F., Zhang Y., Et al., Influence of relative position of ground structure on seismic response of underground station structure, Earthquake Research in China, 26, 2, pp. 201-209, (2010)
  • [7] He W., Chen J., Influence of ground surface building on seismic response of underground station structure, Journal of Vibration and Shock, 31, 9, pp. 53-58, (2012)
  • [8] Yang L., Ji Q., Zheng Y., Et al., Study on design of test box in shaking table test for subway station structure in soft soil, Chinese Joumal of Geotechnical Engineering, 26, 1, pp. 75-78, (2004)
  • [9] Wang J., Dou Y., Tian G., Et al., Shaking table model test study of the effect on tunnel structure existing void behind lining of circular tunnel, Industrial Construction, 47, 3, pp. 117-124, (2017)
  • [10] Zhang M., Some problems in application of similarity law in earthquake simulation test, Earthquake Engineering and Engineering Vibration, 17, 2, pp. 52-58, (1997)
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