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April 18, 2026BuildingsOpen Access

Research on Optimization of Forced Ventilation Parameters for Blasting Construction in Large-Section Tunnels Based on CFD

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Authors

SXSong XinShandong University of Science and TechnologyQCQi CuiShandong University of Science and TechnologyHGHuidong GaoInstitute of Refrigeration

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Implication

Research demonstrates enhanced dust removal in tunnel construction, suggesting improved worker safety and cost-effectiveness.

Key Points

  • The study aims to optimize forced ventilation parameters in large-section tunnels to improve air quality and worker safety during construction.
  • Combined computational fluid dynamics simulations with on-site measurements.
  • Investigated gas-solid two-phase flow theory to analyze dust and airflow behavior.
  • Conducted a two-factor orthogonal experiment for optimal ventilation parameter determination.
  • Performed economic analysis on ventilation configurations.
  • Initial airflow configuration divided into three stages affecting dust diffusion.
  • Average dust concentration in the breathing zone decreased from 36.8 mg/m3 to 1.5 mg/m3 post-optimization.
  • Optimal ventilation parameters included an outlet air velocity of 18 m/s and a duct-to-face distance of 40 m.
  • Achieved a 95.9% improvement in dust removal efficiency.
  • Cost savings of USD 4.39 per hour in electricity compared to higher air velocities.

Cite This Study

Xin et al. (2026) studied this question.

synapsesocial.com/papers/69e3205140886becb653f67ahttps://doi.org/10.3390/buildings16081563
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