Effect of Flexibility Ratio on Seismic Response of Cut-and-Cover Box Tunnel
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 measuremen...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/4905329 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832551745881899008 |
|---|---|
| author | Shamsher Sadiq Quang van Nguyen Hyunil Jung Duhee Park |
| author_facet | Shamsher Sadiq Quang van Nguyen Hyunil Jung Duhee Park |
| author_sort | Shamsher Sadiq |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-88bcbf5c2add4b00873de9fd05709b8c |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-88bcbf5c2add4b00873de9fd05709b8c2025-02-03T06:00:40ZengWileyAdvances in Civil Engineering1687-80861687-80942019-01-01201910.1155/2019/49053294905329Effect of Flexibility Ratio on Seismic Response of Cut-and-Cover Box TunnelShamsher Sadiq0Quang van Nguyen1Hyunil Jung2Duhee Park3Graduate Student, Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Sageun-dong, Seongdong-gu, Seoul, Republic of KoreaGraduate Student, Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Sageun-dong, Seongdong-gu, Seoul, Republic of KoreaGraduate Student, Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Sageun-dong, Seongdong-gu, Seoul, Republic of KoreaProfessor, Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Sageun-dong, Seongdong-gu, Seoul, Republic of KoreaEquivalent 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.http://dx.doi.org/10.1155/2019/4905329 |
| spellingShingle | Shamsher Sadiq Quang van Nguyen Hyunil Jung Duhee Park Effect of Flexibility Ratio on Seismic Response of Cut-and-Cover Box Tunnel Advances in Civil Engineering |
| title | Effect of Flexibility Ratio on Seismic Response of Cut-and-Cover Box Tunnel |
| title_full | Effect of Flexibility Ratio on Seismic Response of Cut-and-Cover Box Tunnel |
| title_fullStr | Effect of Flexibility Ratio on Seismic Response of Cut-and-Cover Box Tunnel |
| title_full_unstemmed | Effect of Flexibility Ratio on Seismic Response of Cut-and-Cover Box Tunnel |
| title_short | Effect of Flexibility Ratio on Seismic Response of Cut-and-Cover Box Tunnel |
| title_sort | effect of flexibility ratio on seismic response of cut and cover box tunnel |
| url | http://dx.doi.org/10.1155/2019/4905329 |
| work_keys_str_mv | AT shamshersadiq effectofflexibilityratioonseismicresponseofcutandcoverboxtunnel AT quangvannguyen effectofflexibilityratioonseismicresponseofcutandcoverboxtunnel AT hyuniljung effectofflexibilityratioonseismicresponseofcutandcoverboxtunnel AT duheepark effectofflexibilityratioonseismicresponseofcutandcoverboxtunnel |