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July 29, 2026BuildingsOpen Access

Study on Support Effect of Large-Section Metro Station Excavated Using Expanded Arch Foot and Bench Method

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Authors

CHChanlong HeFWFang WangMHMeng Huang

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Overview

Randomized trial investigates support effect of methods on surrounding rock in metro stations, suggesting optimal design approaches.

Key Points

  • This study aims to analyze the support effect during the construction of large-section metro stations using specific excavation methods.
  • Utilized a three-dimensional numerical model using Midas GTS NX.
  • Compared different support schemes based on displacement field, stress field, and plastic zone distribution.
  • Validated findings with field monitoring data.
  • Horizontal displacement of the side wall exceeded limits under the original support scheme.
  • Optimal composite support system achieved significant improvements, constraining settlements and reducing stress concentration.
  • Deviation between field monitoring and numerical results was less than 15.2%.

Cite This Study

He et al. (2026) studied this question.

synapsesocial.com/papers/6a69a2a3c8da07d9defa649chttps://doi.org/10.3390/buildings16152989
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