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Stability analysis of entries in a deep coal mine using finite element method.
Min Sci Technol 1985 Oct; 3(1):11-20
Strain-softening behavior of rock and coal layers around a coal mine opening was simulated using a quasi-elastic approach, which accounts for residual strength after failure. This simulation was achieved in such a way that material values were modified after each run, according to stress distribution, until the simulation reached an equilibrium condition, MSC/NASTRAN Finite Element Method program was used for the simulation. The effect of a yield pillar system was analyzed in comparison with a regular pillar system. The results agreed with the field measurement in terms of stress distribution and floor heave.
Mining-industry; Underground-mining; Coal-mining; Simulation-methods
OP; Journal Article
Issue of Publication
Mining Science & Technology
University of Alabama
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division