Empirical vibration investigation of homogeneous ground with shallow tunnel by low-frequency excitation
Urban tunnels and underground structures usually stay at small overburden heights. The insight of shallow underground structures' behaviours is challenging. Low-frequency seismic waves can create significant deformations to civil structures, so the prediction and warning of the damage possibili...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Mouloud Mammeri University of Tizi-Ouzou
2024-12-01
|
| Series: | Journal of Materials and Engineering Structures |
| Subjects: | |
| Online Access: | https://revue.ummto.dz/index.php/JMES/article/view/3705 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849392072283389952 |
|---|---|
| author | Thu-Hang TRAN Duc-Phong PHAM |
| author_facet | Thu-Hang TRAN Duc-Phong PHAM |
| author_sort | Thu-Hang TRAN |
| collection | DOAJ |
| description | Urban tunnels and underground structures usually stay at small overburden heights. The insight of shallow underground structures' behaviours is challenging. Low-frequency seismic waves can create significant deformations to civil structures, so the prediction and warning of the damage possibility of a low-frequency earthquake to the civil infrastructure has attracted research attention. This paper presented an experimental investigation on a physical model including a homogeneous ground and a shallow tunnel. The model underwent an artificial harmony low-frequency excitation created by a 2x2m shaking table. The vibration characteristics of the model’s components were studied and discussed. The accelerograms and the FFT spectrum analysis was realised to understand the similarity of the input and output signals. The Cumulative Absolute Velocity and the Arias Intensity were determined and the correlation between them was investigated. The results proved the complexity of the vibration behaviours of the physical model during the artificial earthquake. The severe effect of the low-frequency excitation on the ground and underground structure motion was also detected. |
| format | Article |
| id | doaj-art-a91237ca3ce74d60870e597be2f2bff2 |
| institution | Kabale University |
| issn | 2170-127X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Mouloud Mammeri University of Tizi-Ouzou |
| record_format | Article |
| series | Journal of Materials and Engineering Structures |
| spelling | doaj-art-a91237ca3ce74d60870e597be2f2bff22025-08-20T03:40:51ZengMouloud Mammeri University of Tizi-OuzouJournal of Materials and Engineering Structures2170-127X2024-12-011144114192329Empirical vibration investigation of homogeneous ground with shallow tunnel by low-frequency excitationThu-Hang TRAN0Duc-Phong PHAM1University of Transport and CommunicationsLe Quy Don Technical UniversityUrban tunnels and underground structures usually stay at small overburden heights. The insight of shallow underground structures' behaviours is challenging. Low-frequency seismic waves can create significant deformations to civil structures, so the prediction and warning of the damage possibility of a low-frequency earthquake to the civil infrastructure has attracted research attention. This paper presented an experimental investigation on a physical model including a homogeneous ground and a shallow tunnel. The model underwent an artificial harmony low-frequency excitation created by a 2x2m shaking table. The vibration characteristics of the model’s components were studied and discussed. The accelerograms and the FFT spectrum analysis was realised to understand the similarity of the input and output signals. The Cumulative Absolute Velocity and the Arias Intensity were determined and the correlation between them was investigated. The results proved the complexity of the vibration behaviours of the physical model during the artificial earthquake. The severe effect of the low-frequency excitation on the ground and underground structure motion was also detected.https://revue.ummto.dz/index.php/JMES/article/view/3705low-frequency excitationshallow tunnelloose fine sand foundationshaking table |
| spellingShingle | Thu-Hang TRAN Duc-Phong PHAM Empirical vibration investigation of homogeneous ground with shallow tunnel by low-frequency excitation Journal of Materials and Engineering Structures low-frequency excitation shallow tunnel loose fine sand foundation shaking table |
| title | Empirical vibration investigation of homogeneous ground with shallow tunnel by low-frequency excitation |
| title_full | Empirical vibration investigation of homogeneous ground with shallow tunnel by low-frequency excitation |
| title_fullStr | Empirical vibration investigation of homogeneous ground with shallow tunnel by low-frequency excitation |
| title_full_unstemmed | Empirical vibration investigation of homogeneous ground with shallow tunnel by low-frequency excitation |
| title_short | Empirical vibration investigation of homogeneous ground with shallow tunnel by low-frequency excitation |
| title_sort | empirical vibration investigation of homogeneous ground with shallow tunnel by low frequency excitation |
| topic | low-frequency excitation shallow tunnel loose fine sand foundation shaking table |
| url | https://revue.ummto.dz/index.php/JMES/article/view/3705 |
| work_keys_str_mv | AT thuhangtran empiricalvibrationinvestigationofhomogeneousgroundwithshallowtunnelbylowfrequencyexcitation AT ducphongpham empiricalvibrationinvestigationofhomogeneousgroundwithshallowtunnelbylowfrequencyexcitation |