Post-Peak Pillar Behavior and the Effects of Backfill Confinement

Software

Version Notes:
FLAC 8.0

Level: Intermediate
Runs in Demo: No

Write Up
Walk Through
Project Files
Consulting Services

FLAC is applied to study the behavior of progressively collapsing pillars. The effect of backfill confinement is evaluated by comparing different scenarios: no backfill, tight backfill and backfill with a 10 cm gap between the backfill and the roof. The peak/residual strength of the pillar is simulated using the strain-softening material model in FLAC, and the pore-collapse behavior of the backfill is simulated using the double-yield material model.

Keywords:

  • Backfill
  • Pillar deformation
  • Sliding contact
  • Strain- Softening model
  • Double-Yiled model
  • Residual stress

Materials:

  • Backfill
  • Rock
  • Talc

Analyses:

  • Static
Latest News
  • Newsletter October 2023 ...
    Read More
  • Newsletter August 2023 ...
    Read More
  • New General Manager for ITASCA Sweden We have appointed a new GM in Sweden!...
    Read More

Upcoming Events
29 Oct
Getting Started with 3DEC
Objectives of the training: Understand the 3DEC numerical approach and the types of problems it can solveKnow how to manipulate the 3DE... Read More
5 Nov
Python in Itasca Software
This course provides an overview of the Python programming language in Itasca software.The course covers major applications of Python t... Read More
19 Nov
Getting Started with FLAC2D/FLAC3D
This training is an introduction to continuous modeling with FLAC2D and FLAC3D. At the end of the course, participants will master the ... Read More