Seismic response of deep circular tunnels subjected to S-waves: Axial bending
Ovaling deformation of circular tunnels has received great interest from the tunneling community because this mode of seismic-induced deformation is considered the most critical. However, there is growing evidence that other deformation modes can also be important and thus need to be considered in d...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2024-08-01
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| Series: | Underground Space |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2467967424000187 |
| _version_ | 1797272413155622912 |
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| author | Chatuphat Savigamin Antonio Bobet Osvaldo P.M. Vitali |
| author_facet | Chatuphat Savigamin Antonio Bobet Osvaldo P.M. Vitali |
| author_sort | Chatuphat Savigamin |
| collection | DOAJ |
| description | Ovaling deformation of circular tunnels has received great interest from the tunneling community because this mode of seismic-induced deformation is considered the most critical. However, there is growing evidence that other deformation modes can also be important and thus need to be considered in design. This study presents a new analytical solution to estimate axial bending (snaking), a mode of deformation caused by S-waves impinging on a tunnel parallel to the tunnel axis. The solution is developed using the soil-structure interaction approach with the assumption that the interface between the ground and the tunnel lining is frictionless (full-slip). Full dynamic numerical simulations are conducted to verify the new full-slip solution, together with the existing no-slip solution. Effects of dynamic amplification are also explored for both full-slip and no-slip interface conditions by changing the wavelength (or frequency) of the seismic input motions. |
| first_indexed | 2024-03-07T14:27:57Z |
| format | Article |
| id | doaj.art-577c3c716ed4457081d57115e1f393ad |
| institution | Directory Open Access Journal |
| issn | 2467-9674 |
| language | English |
| last_indexed | 2024-03-07T14:27:57Z |
| publishDate | 2024-08-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Underground Space |
| spelling | doaj.art-577c3c716ed4457081d57115e1f393ad2024-03-06T05:28:27ZengKeAi Communications Co., Ltd.Underground Space2467-96742024-08-0117267279Seismic response of deep circular tunnels subjected to S-waves: Axial bendingChatuphat Savigamin0Antonio Bobet1Osvaldo P.M. Vitali2HR Engineering Services, Inc., Medley, FL 33166, United States; Lyles School of Civil Engineering, Purdue University, West Lafayette, IN 47907, United States; Corresponding author.Lyles School of Civil Engineering, Purdue University, West Lafayette, IN 47907, United StatesLyles School of Civil Engineering, Purdue University, West Lafayette, IN 47907, United States; Department of Civil, Environmental, and Construction Engineering, University of Hawaii at Manoa, Honolulu, HI 96822, United StatesOvaling deformation of circular tunnels has received great interest from the tunneling community because this mode of seismic-induced deformation is considered the most critical. However, there is growing evidence that other deformation modes can also be important and thus need to be considered in design. This study presents a new analytical solution to estimate axial bending (snaking), a mode of deformation caused by S-waves impinging on a tunnel parallel to the tunnel axis. The solution is developed using the soil-structure interaction approach with the assumption that the interface between the ground and the tunnel lining is frictionless (full-slip). Full dynamic numerical simulations are conducted to verify the new full-slip solution, together with the existing no-slip solution. Effects of dynamic amplification are also explored for both full-slip and no-slip interface conditions by changing the wavelength (or frequency) of the seismic input motions.http://www.sciencedirect.com/science/article/pii/S2467967424000187Seismic response of tunnelsAnalytical solutionsSoil-structure interactionAxial bendingSnakingS-waves |
| spellingShingle | Chatuphat Savigamin Antonio Bobet Osvaldo P.M. Vitali Seismic response of deep circular tunnels subjected to S-waves: Axial bending Underground Space Seismic response of tunnels Analytical solutions Soil-structure interaction Axial bending Snaking S-waves |
| title | Seismic response of deep circular tunnels subjected to S-waves: Axial bending |
| title_full | Seismic response of deep circular tunnels subjected to S-waves: Axial bending |
| title_fullStr | Seismic response of deep circular tunnels subjected to S-waves: Axial bending |
| title_full_unstemmed | Seismic response of deep circular tunnels subjected to S-waves: Axial bending |
| title_short | Seismic response of deep circular tunnels subjected to S-waves: Axial bending |
| title_sort | seismic response of deep circular tunnels subjected to s waves axial bending |
| topic | Seismic response of tunnels Analytical solutions Soil-structure interaction Axial bending Snaking S-waves |
| url | http://www.sciencedirect.com/science/article/pii/S2467967424000187 |
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