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Effect of Flexibility Ratio on Seismic Response of Cut-and-Cover Box Tunnel
Joint Authors
Sadiq, Shamsher
van Nguyen, Quang
Jung, Hyunil
Park, Duhee
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-07-29
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
Equivalent linear time history analyses are conducted to calculate the seismic response of various types of cut-and-cover single box tunnels.
A finite-element numerical model is calibrated against the results of centrifuge tests.
The calculated tunnel responses compare favourably with the measurements.
A validated model is then used to quantify the seismic response of box tunnels.
The flexibility ratio (F) is illustrated to have a governing influence on the tunnel response.
It is shown that the previously developed relationship between F and the racking ratio (R) is applicable for a wide range of F up to 20.
It is also shown that an increase in F accompanies corresponding increase in R, the spectral acceleration in the tunnel lining, and the shear stress along the tunnel lining-soil interface.
The thrust in the tunnel lining is also revealed to increase with F, although the calculated value is significantly lower than the pressure on yielding walls.
Additionally, the surface settlement is shown to increase with an increase in F.
American Psychological Association (APA)
Sadiq, Shamsher& van Nguyen, Quang& Jung, Hyunil& Park, Duhee. 2019. Effect of Flexibility Ratio on Seismic Response of Cut-and-Cover Box Tunnel. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-16.
https://search.emarefa.net/detail/BIM-1116342
Modern Language Association (MLA)
Sadiq, Shamsher…[et al.]. Effect of Flexibility Ratio on Seismic Response of Cut-and-Cover Box Tunnel. Advances in Civil Engineering No. 2019 (2019), pp.1-16.
https://search.emarefa.net/detail/BIM-1116342
American Medical Association (AMA)
Sadiq, Shamsher& van Nguyen, Quang& Jung, Hyunil& Park, Duhee. Effect of Flexibility Ratio on Seismic Response of Cut-and-Cover Box Tunnel. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-16.
https://search.emarefa.net/detail/BIM-1116342
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116342