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The mechanical properties and damage states of tunnel structures vary depending on loading conditions and load levels. A performance-based structural assessment system for shield tunnels can be established by classifying tunnel structural performance levels into different grades using quantitative indicators for the purpose of evaluating the mechanical state of the tunnel structure, thereby helping identify appropriate timing for tunnel operation, maintenance, and repair.

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In-Service Safety Analysis of Shield Tunnel Structures

  • 章节

  • 发表日期：

    2026年

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  • Rulu Wang,
  • Xian Liu,
  • Jiaping Li,
  • Jingya Yan

摘要

The mechanical properties and damage states of tunnel structures vary depending on loading conditions and load levels. A performance-based structural assessment system for shield tunnels can be established by classifying tunnel structural performance levels into different grades using quantitative indicators for the purpose of evaluating the mechanical state of the tunnel structure, thereby helping identify appropriate timing for tunnel operation, maintenance, and repair.