The Influence of the Track Parameters on Vibration Characteristics of Subway Tunnel
In soft soil areas, such as the Nanjing, it is very important to quantitatively analyze the dynamic behaviors of soft soils during the metro train operation. A nonlinear coupling model of wheel-track and a finite element calculation model of tunnel and soil were established based on the mechanical c...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2018/2506909 |
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| _version_ | 1832560448386367488 |
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| author | Wenbo Shi Linchang Miao Junhui Luo Honglei Zhang |
| author_facet | Wenbo Shi Linchang Miao Junhui Luo Honglei Zhang |
| author_sort | Wenbo Shi |
| collection | DOAJ |
| description | In soft soil areas, such as the Nanjing, it is very important to quantitatively analyze the dynamic behaviors of soft soils during the metro train operation. A nonlinear coupling model of wheel-track and a finite element calculation model of tunnel and soil were established based on the mechanical character of elastic supporting block ballastless track and the actual parameters of Nanjing soft soil. The time-variant vertical acceleration of the rail, the sleepers, and the surface of the tunnel can be calculated by the models, and the frequency dependence acceleration was verified by the fast Fourier transform algorithm. A modified vibration power level for human sensitivity was used to quantify the vibration energy of each part of the system, and the impact of the parameters in the model was evaluated. The results can be applied to the metro design and construction, which also can be the guidance during the tunnel construction. |
| format | Article |
| id | doaj-art-957737d429d847c2a6bf65aa09a40cbe |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-957737d429d847c2a6bf65aa09a40cbe2025-02-03T01:27:33ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/25069092506909The Influence of the Track Parameters on Vibration Characteristics of Subway TunnelWenbo Shi0Linchang Miao1Junhui Luo2Honglei Zhang3School of Traffic and Transportation, Xuchang College, Xuchang 461000, ChinaInstitute of Geotechnical Engineering, Southeast University, Nanjing 210018, ChinaGuangxi Communications Planning Surveying and Designing Institute Co., Ltd., Nanning 530029, ChinaHenan Zhibo Architectural Design Group Co., Ltd., Xuchang 461000, ChinaIn soft soil areas, such as the Nanjing, it is very important to quantitatively analyze the dynamic behaviors of soft soils during the metro train operation. A nonlinear coupling model of wheel-track and a finite element calculation model of tunnel and soil were established based on the mechanical character of elastic supporting block ballastless track and the actual parameters of Nanjing soft soil. The time-variant vertical acceleration of the rail, the sleepers, and the surface of the tunnel can be calculated by the models, and the frequency dependence acceleration was verified by the fast Fourier transform algorithm. A modified vibration power level for human sensitivity was used to quantify the vibration energy of each part of the system, and the impact of the parameters in the model was evaluated. The results can be applied to the metro design and construction, which also can be the guidance during the tunnel construction.http://dx.doi.org/10.1155/2018/2506909 |
| spellingShingle | Wenbo Shi Linchang Miao Junhui Luo Honglei Zhang The Influence of the Track Parameters on Vibration Characteristics of Subway Tunnel Shock and Vibration |
| title | The Influence of the Track Parameters on Vibration Characteristics of Subway Tunnel |
| title_full | The Influence of the Track Parameters on Vibration Characteristics of Subway Tunnel |
| title_fullStr | The Influence of the Track Parameters on Vibration Characteristics of Subway Tunnel |
| title_full_unstemmed | The Influence of the Track Parameters on Vibration Characteristics of Subway Tunnel |
| title_short | The Influence of the Track Parameters on Vibration Characteristics of Subway Tunnel |
| title_sort | influence of the track parameters on vibration characteristics of subway tunnel |
| url | http://dx.doi.org/10.1155/2018/2506909 |
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