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Deviation to mucking analysis.

Coralee Heske1,2, Derek B Apel1, Muhammad Adil1

  • 1School of Mining and Petroleum Engineering, University of Alberta, Edmonton, Canada.

Discover Minerals
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Summary
This summary is machine-generated.

Drill hole deviations in underground mining reduce efficiency and safety. Limiting deviations to under 21% and maintaining drill speeds of 9.14 m/hr improves operations and resource recovery.

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Area of Science:

  • Mining Engineering
  • Geotechnical Engineering

Background:

  • Drill hole deviations in underground mining significantly impact operational efficiency and safety.
  • Systematic deviations of approximately 1 meter were observed in six stopes at Thompson Mine.

Purpose of the Study:

  • To investigate the correlation between drill hole deviations and operational metrics.
  • To establish parameters for mitigating deviations to improve mining outcomes.

Main Methods:

  • Analysis of drill hole data from six stopes at Thompson Mine.
  • Correlation analysis between deviation percentage, mucking rate, and drilling speed.

Main Results:

  • A correlation exists between the percentage of deviating holes and the mucking rate.
  • To maintain 544 tonnes/day, less than 21% of holes should exceed average deviation.
  • Average drill speeds of 9.14 m/hr are recommended, especially for novice operators, to reduce deviations.

Conclusions:

  • Regulated drilling rates enhance precision, efficiency, and economic viability.
  • Sophisticated tools, planning, and monitoring are essential for managing drill hole variations.
  • Mitigating deviations is crucial for improving resource recovery, reducing waste, and enhancing production in underground mining.