Cemented Backfill Pillar Performance

Software

Version Notes:
FLAC 8.0

Level: Beginner
Runs in Demo: Yes

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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
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