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  3. Study On The Stability Of Waste Rock Filling In Goaf Based On Dynamic Comprehensive Analysis Method.
  1. Home
  3. Study On The Stability Of Waste Rock Filling In Goaf Based On Dynamic Comprehensive Analysis Method.

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Study on the stability of waste rock filling in goaf based on dynamic comprehensive analysis method.

Gongyong Wu1, Xingxin Nie1, Linhai Zhao2

  • 1Xi'an University of Architecture and Technology, Xi'an, 710055, China.

Heliyon
|December 25, 2024

View abstract on PubMed

Summary
This summary is machine-generated.

Combining waste rock filling and cemented roof filling effectively stabilizes underground mining voids. This approach reduces rock stress, improves goaf stability, and minimizes surface deformation, promoting environmentally sustainable mining practices.

Keywords:
Green minesMidas GTS/NXStabilityUnderground mine goafWaste rock filling

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Area of Science:

  • Mining Engineering
  • Geotechnical Engineering
  • Environmental Science

Background:

  • Underground void treatment is crucial for sustainable mining.
  • Existing methods face challenges in ensuring safety and stability.
  • Environmentally sustainable mine construction requires effective void management.

Purpose of the Study:

  • To evaluate the combined approach of waste rock filling and cemented roof filling for mining voids.
  • To analyze the impact of these treatments on rock stress, strain, and surface stability.
  • To provide insights into green mining and void treatment strategies.

Main Methods:

  • Integrated numerical simulation analysis.
  • Onsite displacement monitoring.
  • Dynamic analysis of stress-strain conditions during cavity formation and treatment.

Main Results:

  • The combined "waste rock filling + cemented roof filling" effectively reduces surrounding rock stress and improves goaf stability.
  • Surface displacement and deformation are significantly reduced, ensuring surface riverbed stability.
  • Stress and strain sensitive points are primarily located in the roof, bottom, and intercolumn of the stope.

Conclusions:

  • The "waste rock filling + cemented roof filling" method enhances mining void stability and promotes green mine construction.
  • This approach effectively transforms solid waste into valuable resources within mines.
  • The study offers viable solutions for similar complex underground void treatment challenges.