Post pillars are created when mechanized cut-and-fill stopes are mined on all sides. A FLAC model studies the potential instability of the pillars. Axisymmetric geometry in FLAC provides a reasonable representation of the three-dimensional condition.
Keywords:
- Post-pillar
- Cut-and-fill
- Stress
- Displacements
- Mining stages
- Axisymmetric
- Mohr-Coulomb model
- Double-Yield model
Materials:
- Backfill
- Rock
Analyses:
- Static