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April 4, 2026Applied SciencesOpen Access

Stability Study of Deep-Buried Tunnels Crossing Fractured Zones Based on the Mechanical Behavior of Surrounding Rock

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Authors

RYRui YangHLHanjun LuoWSWei Sun

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Overview

Evaluates surrounding rock stability in fractured zones, suggesting measures for construction safety.

Key Points

  • The aim is to investigate the mechanical behavior of surrounding rock in deep-buried tunnels through fractured zones.
  • Conducted laboratory triaxial tests to assess peak strength and failure modes of surrounding rock.
  • Employed a multi-source geological prediction workflow for site-specific analysis.
  • Utilized Mohr–Coulomb numerical simulations to evaluate mechanical properties and behavior under disturbance.
  • Average peak strength of surrounding rock is 149.04 MPa, with variability among samples.
  • Identified a fractured zone approximately 130 m wide with high intrinsic strength but low stability.
  • Simulation results closely matched field monitoring data, particularly peak displacements.

Cite This Study

Yang et al. (2026) studied this question.

synapsesocial.com/papers/69d0afde659487ece0fa5f87https://doi.org/10.3390/app16073473
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Also Consider

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  1. 1Study on the evolution law of rock fracture damage in deep buried tunnel based on in-situ monitoring data2026
  2. 2Analysis of Mechanical Properties of Steep Surrounding Rock and Failure Process with Countermeasures for Tunnel Bottom Structures2024
  3. 3Research on the Mechanism of Loose Deformation in Weak Fracture Zone Tunnel Surrounding Rock and Support Control2024 · 6 citations
  4. 4Mechanical Behaviors and Structure Safety of a Tunnel Crossing a Water-Rich Fault Fracture Zone—A Case Study2024 · 4 citations
  5. 5From microseismic monitoring to targeted reinforcement: a data-driven simulation approach for deep tunnel stability2026