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March 10, 2026KSCE Journal of Civil EngineeringOpen Access

3D modelling the long-term ageing performance of a CERN tunnel

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Authors

ZXZhipeng XiaoCWChao WangCPChuanyang Peng

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Overview

Finite element analysis reveals effects of hydraulic and mechanical deterioration on a tunnel's performance.

Key Points

  • This research aims to analyze the long-term performance of a tunnel by evaluating the impact of various deterioration factors.
  • Conducted three-dimensional finite element analysis of a horseshoe-shaped tunnel at CERN.
  • Modeled hydraulic deterioration by reducing lining permeability.
  • Simulated mechanical deterioration through decreased lining stiffness.
  • Validated models against geodetic and DFOS data at a specific tunnel section.
  • Performed parametric studies on ground layering and permeability anisotropy.
  • Hydraulic deterioration causes vertical elongation, while mechanical deterioration results in tunnel contraction.
  • Marl swelling is identified as the primary cause of deformation, with deterioration effects being less significant.
  • Tunnel alignment through stratified ground leads to varying deformation due to geological differences.
  • Permeability anisotropy increases groundwater pressure buildup, exacerbating vertical elongation.

Cite This Study

Xiao et al. (2026) studied this question.

synapsesocial.com/papers/69af944f70916d39fea4b60dhttps://doi.org/10.1016/j.kscej.2026.100570
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Also Consider

Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Time-Dependent Modeling of Tunnels in Squeezing Conditions2011 · 167 citations
  2. 2Three-dimensional finite element analysis of the behaviour of cross passage between cast-iron tunnels2015 · 18 citations