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June 7, 2026SymmetryOpen Access

Study on Rock Bolt Deterioration and Roadway Deformation in Alkaline Water-Flooded Roadways

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Authors

HFHaochen FengWGWeiming GuanHWH B Wang

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Overview

Randomized trial investigates bolt corrosion impact on roadway deformation in alkaline conditions, highlighting safety concerns.

Key Points

  • This study aims to understand how rock bolt deterioration affects roadway stability in alkaline water-flooded environments.
  • Conducted accelerated corrosion tests in 10% Na2SO4 solutions at varying pH levels for 3, 6, and 9 days.
  • Performed uniaxial tensile tests and FLAC3D numerical simulations to analyze bolt behavior and roadway response.
  • Documented mass loss rates and yield loads under different corrosion conditions.
  • Corrosion rates increased with time, highest at pH=13 after 9 days with significant mass loss.
  • Yield load decreased with mass loss rates, with slopes of −0.1842, −0.07531, and −0.04998 kN/% for pH levels 9, 11, and 13, respectively.
  • Horizontal displacement reached approximately −153.7 mm and 155.4 mm, with maximum roof subsidence and floor heave at −188.7 mm and 191.3 mm under severe corrosion.

Cite This Study

Feng et al. (2026) studied this question.

synapsesocial.com/papers/6a250be87def13d035e1be3ehttps://doi.org/10.3390/sym18060976
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