|Table of Contents|

[1] Liu Chunxiao, Tao Lianjin, Bian Jin, et al. Influence of the liquefied soil layer distributionon the seismic response of rectangular tunnel [J]. Journal of Southeast University (English Edition), 2018, (2): 259-268. [doi:10.3969/j.issn.1003-7985.2018.02.016]
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Influence of the liquefied soil layer distributionon the seismic response of rectangular tunnel()
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
Issue:
2018 2
Page:
259-268
Research Field:
Civil Engineering
Publishing date:
2018-06-20

Info

Title:
Influence of the liquefied soil layer distributionon the seismic response of rectangular tunnel
Author(s):
Liu Chunxiao1 2 Tao Lianjin1 2 Bian Jin3 Feng Jinhua1 2Zhang Yu1 2 Dai Xitong1 2 Wang Zhaoqing1 2
1Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing 100124, China
2Center of Cooperative Innovation for Beijing Metropolitan Transportation, Beijing University of Technology, Beijing 100124, China
3Engineering College, Guangdong Ocean University, Zhanjiang 524088, China
Keywords:
liquefaction seismic response rectangular tunnel PL-Finn constitutive model numerical simulation
PACS:
TU43
DOI:
10.3969/j.issn.1003-7985.2018.02.016
Abstract:
In order to obtain the seismic responses of the soil-rectangular tunnel structure, based on the PL-Finn constitutive model, four different conditions, namely, the liquefied soil around the rectangular tunnel, the liquefied soil below the rectangular tunnel, the liquefied soil on either side of the tunnel and the structure on non-liquefied soil, are compared. In accordance to the time at which a large deformation occurs, the possibility of destruction from hard to easy follows a descending order: the liquefied soil all around the structure, the liquefied soil on the bottom of the structure, and the liquefied soil on the two sides of the structure. The area of large deformation is mostly beneath the two arch angles of the tunnel floor. The soil on the two sides, especially close to the structure, is the hardest to liquefy and deform. The large deformation of soil caused by the liquefaction appears after the peak seismic value occurs. The higher the input seismic value is, the easier a large deformation can take place. With the same input of peak ground motion, the total displacement vector of the structure and differential displacement of the side-wall are in accordance with an order from large to small in the three situations: when the saturated sand is on two sides, all around the structure, and on the bottom of the structure.

References:

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Memo

Memo:
Biographies: Liu Chunxiao(1992—), female, Ph.D. candidate; Tao Lianjin(corresponding author), male, doctor, professor, ljtao@bjut.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.41572276), the National Key Research and Development Program of China(No.2017YFC0805400).
Citation: Liu Chunxiao, Tao Liajin, Bian Jin, et al. Influence of the liquefied soil layer distribution on the seismic response of rectangular tunnel[J].Journal of Southeast University(English Edition), 2018, 34(2):259-268.DOI:10.3969/j.issn.1003-7985.2018.02.016.
Last Update: 2018-06-20