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With the rapid development of urban transportation construction, numerous engineering projects involving the construction of new roads crossing established underground railway lines have emerged. The vibratory compaction of road surfaces has a significant impact on the structural integrity of subway stations to some extent. In the context of the crossing of Road 5 with the established shallow-buried subway station, numerical simulation methods were employed to study the dynamic response characteristics of the shallow-buried subway station under the action of surface vibration loads. Furthermore, sensitivity analysis was conducted on factors such as vibration frequency and excitation force. The research results indicate that under the influence of surface vibration loads, the acceleration response of the station’s structure exhibits a trend of attenuation from top to bottom and from the center towards both sides, specifically: top plate > middle plate > side walls > bottom plate. As the vibration frequency increases, the acceleration response of the station’s structure gradually intensifies. Based on the aforementioned research findings, it is recommended that the optimal construction parameters for vibratory compaction of the roadbed above this shallow-buried subway entail a vibration frequency of 28-33Hz and an excitation force ranging from 150-300kN. © 2024 The Author(s).
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Year: 2024
Page: 1216-1223
Language: English
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 1
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