Simulation of Cascading Pillar Failure in Room-And-Pillar Mines Using Boundary-Element-Method
Abstract
A "Cascading Pillar Failure" can occur in certain room-and-pillar mines when one pillar in a mine layout fails which transfers its load to neighboring pillars causing them to fail, and so forth. Whether failure occurs in a stable, nonviolent manner or in an unstable violent manner is governed by the local mine stiffness stability criterion. To apply this stability criterion, a boundary-element-method computer program with a strain-softening material model calculates the local mine stiffness and the post-failure pillar stiffness. The behavior of computer simulations changes depending on whether the model satisfies or violates this stability criterion. Example analyses illustrate how the computer program can simulate stable and unstable failures in mines.
Recommended Citation
R. K. Zipf, "Simulation of Cascading Pillar Failure in Room-And-Pillar Mines Using Boundary-Element-Method," Proceedings of the 2nd North American Rock Mechanics Symposium, American Rock Mechanics Association (ARMA), Jan 1996.
Meeting Name
2nd North American Rock Mechanics Symposium
Department(s)
Mining Engineering
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 1996 American Rock Mechanics Association (ARMA), All rights reserved.
Publication Date
01 Jan 1996
