Analysis of Environmental Vibrations in Suburban Railways Affected by Adjacent Bidirectional Tunnels
Train-induced environmental vibrations are a common issue in urban rail transit systems, particularly in suburban railways operating at high speeds, where the impact of these vibrations is more pronounced. This presents significant challenges for urban planners and engineers. Existing research has m...
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MDPI AG
2025-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/2/812 |
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| author | Dong Li Zhimin Li Hongkai Wang Jili Yin Zhoujian You Futong Wang |
| author_facet | Dong Li Zhimin Li Hongkai Wang Jili Yin Zhoujian You Futong Wang |
| author_sort | Dong Li |
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| description | Train-induced environmental vibrations are a common issue in urban rail transit systems, particularly in suburban railways operating at high speeds, where the impact of these vibrations is more pronounced. This presents significant challenges for urban planners and engineers. Existing research has mainly focused on the impact of single tunnel structures on ground vibrations, with limited understanding of the vibration propagation characteristics of adjacent bidirectional tunnels. To address this gap in knowledge, this study investigates the ground vibration attenuation characteristics induced by train operations in the underground sections of suburban railways, with a focus on the amplification effects of adjacent tunnels on ground vibrations. The results show that the vibrations induced by the trains are concentrated in the 20–50 Hz frequency range and exhibit similar characteristics in all directions. The maximum vertical vibration acceleration and peak acceleration occur directly above the train tunnel. Additionally, adjacent tunnels significantly amplify the maximum peak acceleration at measurement points in directions perpendicular to the track, including both horizontal and vertical directions. Furthermore, the soil within the adjacent tunnels also exhibits amplification of the vertical power spectral amplitude in the 40–100 Hz frequency range. The findings of this study provide new insights into the influence of adjacent bidirectional tunnels on environmental vibrations in suburban railway operations. These results are of significant importance for optimizing railway design and vibration mitigation measures. |
| format | Article |
| id | doaj-art-e139178bb02f488a967ebc011aaf6245 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-e139178bb02f488a967ebc011aaf62452025-01-24T13:20:54ZengMDPI AGApplied Sciences2076-34172025-01-0115281210.3390/app15020812Analysis of Environmental Vibrations in Suburban Railways Affected by Adjacent Bidirectional TunnelsDong Li0Zhimin Li1Hongkai Wang2Jili Yin3Zhoujian You4Futong Wang5School of Civil Engineering, Heilongjiang University, Harbin 150080, ChinaSchool of Civil Engineering, Heilongjiang University, Harbin 150080, ChinaSchool of Civil Engineering, Heilongjiang University, Harbin 150080, ChinaSchool of Civil Engineering, Heilongjiang University, Harbin 150080, ChinaSchool of Civil Engineering, Heilongjiang University, Harbin 150080, ChinaSchool of Civil Engineering, Heilongjiang University, Harbin 150080, ChinaTrain-induced environmental vibrations are a common issue in urban rail transit systems, particularly in suburban railways operating at high speeds, where the impact of these vibrations is more pronounced. This presents significant challenges for urban planners and engineers. Existing research has mainly focused on the impact of single tunnel structures on ground vibrations, with limited understanding of the vibration propagation characteristics of adjacent bidirectional tunnels. To address this gap in knowledge, this study investigates the ground vibration attenuation characteristics induced by train operations in the underground sections of suburban railways, with a focus on the amplification effects of adjacent tunnels on ground vibrations. The results show that the vibrations induced by the trains are concentrated in the 20–50 Hz frequency range and exhibit similar characteristics in all directions. The maximum vertical vibration acceleration and peak acceleration occur directly above the train tunnel. Additionally, adjacent tunnels significantly amplify the maximum peak acceleration at measurement points in directions perpendicular to the track, including both horizontal and vertical directions. Furthermore, the soil within the adjacent tunnels also exhibits amplification of the vertical power spectral amplitude in the 40–100 Hz frequency range. The findings of this study provide new insights into the influence of adjacent bidirectional tunnels on environmental vibrations in suburban railway operations. These results are of significant importance for optimizing railway design and vibration mitigation measures.https://www.mdpi.com/2076-3417/15/2/812vibration acceleration levelground surface vibrationground surface displacement amplitudepeak accelerationsuburban railway |
| spellingShingle | Dong Li Zhimin Li Hongkai Wang Jili Yin Zhoujian You Futong Wang Analysis of Environmental Vibrations in Suburban Railways Affected by Adjacent Bidirectional Tunnels Applied Sciences vibration acceleration level ground surface vibration ground surface displacement amplitude peak acceleration suburban railway |
| title | Analysis of Environmental Vibrations in Suburban Railways Affected by Adjacent Bidirectional Tunnels |
| title_full | Analysis of Environmental Vibrations in Suburban Railways Affected by Adjacent Bidirectional Tunnels |
| title_fullStr | Analysis of Environmental Vibrations in Suburban Railways Affected by Adjacent Bidirectional Tunnels |
| title_full_unstemmed | Analysis of Environmental Vibrations in Suburban Railways Affected by Adjacent Bidirectional Tunnels |
| title_short | Analysis of Environmental Vibrations in Suburban Railways Affected by Adjacent Bidirectional Tunnels |
| title_sort | analysis of environmental vibrations in suburban railways affected by adjacent bidirectional tunnels |
| topic | vibration acceleration level ground surface vibration ground surface displacement amplitude peak acceleration suburban railway |
| url | https://www.mdpi.com/2076-3417/15/2/812 |
| work_keys_str_mv | AT dongli analysisofenvironmentalvibrationsinsuburbanrailwaysaffectedbyadjacentbidirectionaltunnels AT zhiminli analysisofenvironmentalvibrationsinsuburbanrailwaysaffectedbyadjacentbidirectionaltunnels AT hongkaiwang analysisofenvironmentalvibrationsinsuburbanrailwaysaffectedbyadjacentbidirectionaltunnels AT jiliyin analysisofenvironmentalvibrationsinsuburbanrailwaysaffectedbyadjacentbidirectionaltunnels AT zhoujianyou analysisofenvironmentalvibrationsinsuburbanrailwaysaffectedbyadjacentbidirectionaltunnels AT futongwang analysisofenvironmentalvibrationsinsuburbanrailwaysaffectedbyadjacentbidirectionaltunnels |