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Per-Face Analysis

Purpose

Assessment of performance on a per face basis. This analysis used to identify trends unique to specific stope faces, for example, Stability Chart analysis or a comparative assessment overbreak of hanging wall faces with and without ground support.

Analysis options consist of:

  • 3D view
  • Tables (regular and LITE version)
  • Charts:
    • A vs B Chart
    • 3D Chart
    • Cumulative Chart (Group By)
    • Cumulative Log Chart (Group By)
    • The Stability Chart
      • Plots the Stability Number and the Hydraulic Radius of a face. The chart also includes standard design curves while also allowing site specific curves to be entered.
Stability Chart
Stability Chart
  • To create custom curves:
    • Step 1. Go into the control panel
    • Step 2. Tick the Edit box and insert a row
    • Step 3. Input the information for the new curve
    • Step 4. Tick the option to show the custom labels
    • Step 5. Finally tick on the Custom Curves series to see them
Custom Stability Chart
Custom Stability Chart

At a per face resolution, a greater variety of parameters can be queried and are listed here:

  • Face geometry (Area, perimeter, Hydraulic radius, Dip, Dip direction, planarity, Max ERF)
  • Tags (Face type, Ground support tags, Stope tags)
  • Geomechanical parameters (Ja, Jn, Jr, RQD, UCS, Q', N')
  • Stand-up time (days)
  • Position (X,Y,Z)
  • Number of blast
  • First blast date
  • Stope performance
    • OB (ELOS, rock, fill, max and mean distance)
    • UB (ELLO, rock, fill, max and mean distance)
    • Projected distance (min, mean, StdDev, max)

Video

Explains the Per Face window layout and tools in the stope reconciliation Analysis App.