Cemented Backfill Pillar Performance

Software:
FLAC 8.0
Example Write-Up:
Walk-Through: 
Runs in Demo: 
Yes
Level: 
BEG
Consulting Service: 
Details and Description: 

The failure mode of cemented backfill pillars is studied with FLAC.  A sliding interface is used to represent the orebody-sandfill contact to allow downward settling of sand during collapse.  The model is run in large-strain mode to illustrate the active collapse of the pillar.

Keywords: 
  • Backfill
  • Pillar
  • Mining stages
  • Interface
  • Large-strain
  • Mohr-Coulomb model
Materials: 
  • Backfill
  • Cement
  • Ore
  • Rock
Analyses: 
  • Static