Stability Analysis and Optimized Slope Angle for the Iron Ore Open-Pit Mine

AKDAG S., BASARIR H., KARPUZ C., OZYURT M.

24th INTERNATIONAL MINING CONGRESS OF TURKEY, Antalya, Turkey, 14 - 17 April 2015, pp.606-611 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • City: Antalya
  • Country: Turkey
  • Page Numbers: pp.606-611
  • Keywords: Open-pit mining, rock slope stability, overall slope angle, limit equilibrium method, numerical modeling, factor of safety
  • Middle East Technical University Affiliated: Yes

Abstract

With an increase in the overall slope height of open pit mines, stability analysis and amount of stripping waste rock becomes progressively difficult. It is necessary to optimize the overall slope angle by increasing it as much as possible with ensuring the mining safety. After comprehensive geotechnical investigation and rock mechanical laboratory tests, the combined use of limit equilibrium and numerical modeling analysis methods increases reliability and accuracy of the stability analysis. With the optimum slope design in Bizmisen iron ore mine, there will be a significant decrease in production cost and in the amount of stripping.