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September 23, 2025BuildingsOpen Access

Study of Factors Influencing the Longitudinal Mechanical Performance of Shield Tunnels Traversing Soft–Hard Heterogeneous Soils

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Authors

XXXiaojie XueUniversity of Electronic Science and Technology of ChinaQZQingcheng ZengBay InstituteXPXinhua PengUniversity of Science and Technology of China

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Overview

Numerical model reveals that longitudinal thrust influences tunnel stiffness and joint integrity in heterogeneous soils.

Key Points

  • Significant differential settlement occurs at soft-hard soil interfaces, affecting tunnel stability.
  • Increased longitudinal thrust enhances tunnel stiffness but raises compressive and tensile damage risk.
  • Optimized bolt configurations improve longitudinal stiffness, reducing tensile damage during construction.
  • Tunnel design needs to consider varying soil conditions for performance optimization and damage control.

Cite This Study

Xue et al. (2025) studied this question.

synapsesocial.com/papers/68d4724f31b076d99fa6ad73https://doi.org/10.3390/buildings15183417
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Also Consider

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  1. 1Model test on longitudinal differential settlement of operational shield tunnel under localized surface loading2026
  2. 2Mechanical Performance Investigation of the Effective Longitudinal Torsional Stiffness Ratio in Rectangular Shield Tunnels Under Combined Loadings2026
  3. 3The Mechanical Behavior of a Shield Tunnel Reinforced with Steel Plates Under Complex Strata2025 · 1 citations
  4. 4Stability Analysis of Shield Tunnels Considering Spatial Nonhomogeneity and Anisotropy of Soils with Tensile Strength Cut-Off2025
  5. 5Incomplete soil arching effect and responses of existing tunnels induced by undercrossing super-large-diameter shield tunneling in soft strata2026 · 1 citations