Numerical Simulation of Reasonable Width of Section Coal Pillar of Fully - mechanized Caving Face with Hard Coal Layered
Abstract：In order to ensure the reasonable width of section coal pillar, the FLAC3D numerical simulation software combined with the specific conditions of a mine has been adopted. The stress intensity and plastic destruction under different width of coal pillar have been analyzed. The results show that the coal pillar still has better carrying capacity while the width of coal pillar reduces from 20 m to 13 m, but when the width of coal pillar is less than 13 m, the coal pillar loses its carrying capacity. Finally, the reasonable width of coal pillar is 13 m.
Keywords：hard coal layeredsection coal pillarFLAC3Dnumerical simulationfully - mechanized caving face
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 37-40 )