Numerical Analysis of Subgrade Behavior under a Dynamic Maglev Train Load
Medium-low-speed maglevs are increasingly used in the urban rail transit industry because of their advantages, such as low noise and low energy consumption. In this study, a finite element analysis of the responses of the subgrade that supports a medium-low-speed maglev structure under a dynamic mag...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/2014376 |
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| _version_ | 1832565303759863808 |
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| author | Wubin Wang Zhixing Deng Yandong Li Zhichao Huang Yunbin Niu Kang Xie |
| author_facet | Wubin Wang Zhixing Deng Yandong Li Zhichao Huang Yunbin Niu Kang Xie |
| author_sort | Wubin Wang |
| collection | DOAJ |
| description | Medium-low-speed maglevs are increasingly used in the urban rail transit industry because of their advantages, such as low noise and low energy consumption. In this study, a finite element analysis of the responses of the subgrade that supports a medium-low-speed maglev structure under a dynamic maglev load is presented. First, the finite element analysis considers a low-lying structure with different elastic moduli. Then, the attenuation laws of the dynamic stress and dynamic deformation for different depth ranges of the subgrade under the rail beam are analyzed. In addition, the magnitude of the influence of the dynamic load is clarified. The results lead to a recommendation of a base bed thickness of 1.5 m, graded gravel or group A filler as the surface layer of filler, and gravel soil as the bottom layer. This study provides theoretical support for the construction design of a subgrade structure under the rail beam of a low-lying maglev line. |
| format | Article |
| id | doaj-art-5d36f48607fa463198e13f0f77be89c0 |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-5d36f48607fa463198e13f0f77be89c02025-02-03T01:08:45ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/2014376Numerical Analysis of Subgrade Behavior under a Dynamic Maglev Train LoadWubin Wang0Zhixing Deng1Yandong Li2Zhichao Huang3Yunbin Niu4Kang Xie5National Engineering Laboratory for Technology of Geological Disaster Prevention, Land TransportationSchool of Civil EngineeringSchool of Civil EngineeringSchool of Civil EngineeringSchool of Civil EngineeringDepartment of Civil EngineeringMedium-low-speed maglevs are increasingly used in the urban rail transit industry because of their advantages, such as low noise and low energy consumption. In this study, a finite element analysis of the responses of the subgrade that supports a medium-low-speed maglev structure under a dynamic maglev load is presented. First, the finite element analysis considers a low-lying structure with different elastic moduli. Then, the attenuation laws of the dynamic stress and dynamic deformation for different depth ranges of the subgrade under the rail beam are analyzed. In addition, the magnitude of the influence of the dynamic load is clarified. The results lead to a recommendation of a base bed thickness of 1.5 m, graded gravel or group A filler as the surface layer of filler, and gravel soil as the bottom layer. This study provides theoretical support for the construction design of a subgrade structure under the rail beam of a low-lying maglev line.http://dx.doi.org/10.1155/2022/2014376 |
| spellingShingle | Wubin Wang Zhixing Deng Yandong Li Zhichao Huang Yunbin Niu Kang Xie Numerical Analysis of Subgrade Behavior under a Dynamic Maglev Train Load Advances in Civil Engineering |
| title | Numerical Analysis of Subgrade Behavior under a Dynamic Maglev Train Load |
| title_full | Numerical Analysis of Subgrade Behavior under a Dynamic Maglev Train Load |
| title_fullStr | Numerical Analysis of Subgrade Behavior under a Dynamic Maglev Train Load |
| title_full_unstemmed | Numerical Analysis of Subgrade Behavior under a Dynamic Maglev Train Load |
| title_short | Numerical Analysis of Subgrade Behavior under a Dynamic Maglev Train Load |
| title_sort | numerical analysis of subgrade behavior under a dynamic maglev train load |
| url | http://dx.doi.org/10.1155/2022/2014376 |
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