PLAN GEOMETRY AND OTHER FACTORS RELATING TO NATURAL ROCK SLOPE STABILITY APPLIED TO DESIGN OF DE BEERS MINE

As part of a major study relating to the stability of rock slopes of De Beers Mine, a detailed investigation was made of the natural slopes of De Beers Mine and four other diamond mines in Kimberley, South Africa. Attempt was made to determine the controlling factors which either lead to or detract from the stability of the slopes, the main objective being to assess whether the natural breakback of the slopes would jeopardize the main railway line located in close proximity to the pit. The slopes were considered to be in a state of limiting stability and had a factor of safety of just less than unity. As the study progressed it became apparent that the radius of curvature of the slopes had a significant effect on the stability of the natural pits investigated and also that the major dimensions of the pipes were important factors for the stability of a curved slope. Factors such as rate of breakback, comparison of the effects of radius of curvature on the upper and lower parts of the slopes, mechanics of failure and the possible effects of regional stress were assessed.

  • Supplemental Notes:
    • From PhD Thesis, Volume 2, University of Witwatersrand.
  • Corporate Authors:

    Canadian Department of Energy, Mines and Resources

    580 Booth Street
    Ottawa, Ontario K14 OE4,   Canada 
  • Authors:
    • Piteau, D R
  • Publication Date: 1974-6

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: 20 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00263837
  • Record Type: Publication
  • Report/Paper Numbers: TB190 Tech Bultn
  • Files: TRIS
  • Created Date: Dec 13 1974 12:00AM