Modal analysis of subway tunnel in soft soil during operation

Wan, Ling; Xie, Xuansong; Wang, Lujun; Li, Pan; Huang, Qiang

doi:10.1016/j.undsp.2022.04.008

Cited by 6 publications

(1 citation statement)

References 20 publications

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“…Kuo et al [3] introduced a double-tunnel model, which improves the accuracy of vibration prediction for underground railways by calculating the interactions between the two tunnels. Wan et al [4] monitored the vibration response of a subway tunnel in operation and proposed an identification method for structural modal parameters. Zou et al [5] developed a computational model for train-generated vibration and studied the vibration transmission modes in transmission structures in architectural design.…”

Section: Introductionmentioning

confidence: 99%

Influence and the Control of Shield Tunneling on Ancient Tower Vibration

Liang,

Xu,

Zhang

et al. 2024

Advances in Civil Engineering

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In recent years, to effectively mitigate the issue of urban traffic congestion, tunnels have become widely used new type of road. However, when the soil layer is excavated and disturbed, the resulting vibration affects the safety of the buildings above it, especially for ancient buildings that are very sensitive to vibrations. Taking the White Tower in Hangzhou as an example, in this paper, the vibration response propagation of large-diameter shield tunnel excavation to adjacent ancient towers is studied through field measurements. The vibration response of the unexcavated south line tunnel is predicted by using 3D numerical analysis software, and the optimal construction parameters are obtained. The study found that the frequency domain component of the White Tower bedrock vibration caused by shield tunneling is mainly 5–20 Hz, and the vibration response attenuates significantly beyond 40 m. Further, reducing the propulsive force can reduce the vibration response of the White Tower; therefore, controlling the propulsion and reducing the tunneling velocity can reduce the vibration response.

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Section: Introductionmentioning

confidence: 99%