Investigation on evolution mechanism and treatment of invert damage in operating railway tunnels under heavy rainfall

Luo, Yubo; Yang, Junsheng; Xie, Yipeng; Fu, Jinyang; Zhang, Cong

doi:10.1007/s10064-024-03655-4

Bull Eng Geol Environ

2024

DOI: 10.1007/s10064-024-03655-4

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Investigation on evolution mechanism and treatment of invert damage in operating railway tunnels under heavy rainfall

Yubo Luo,

Junsheng Yang,

Yipeng Xie

et al.

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Study on the Impact of Groundwater and Soil Parameters on Tunnel Deformation and Sensitivity Analysis

Li,

Zhang,

Dong

et al. 2024

Applied Sciences

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Based on the Xiaolangdi North Bank Irrigation Area Project, this study combines numerical simulation and BP neural network methods to investigate the sensitivity of tunnel soil and its parameter inversion under continuous heavy rainfall. The research results indicate that changes in water-level and soil strength parameters have a significant impact on the deformation of tunnel surrounding rock. By comparing the sensitivity factors of different parameters, the main parameter sensitivities affecting the displacement of tunnel surrounding rock were determined to be water level, internal friction angle, and cohesion. The mechanical characteristics of the tunnel construction process were analyzed using finite difference method numerical analysis software FLAC3D, and the results were used as a sample dataset for inversion analysis. Through neural network inverse analysis based on orthogonal design method, the cohesion and internal friction angle of loess layer ④, loess layer ④-1, and loess layer ⑤ were determined, and the data of groundwater level elevation were obtained. Field applications proved the effectiveness and rationality of this method.

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Study on the Impact of Groundwater and Soil Parameters on Tunnel Deformation and Sensitivity Analysis

Li,

Zhang,

Dong

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

show abstract

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Investigation on evolution mechanism and treatment of invert damage in operating railway tunnels under heavy rainfall

Cited by 1 publication

References 25 publications

Study on the Impact of Groundwater and Soil Parameters on Tunnel Deformation and Sensitivity Analysis

Study on the Impact of Groundwater and Soil Parameters on Tunnel Deformation and Sensitivity Analysis

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