Numerical Simulation Analysis on Stability of Coal Pillar of Empty Mine Goaf in North of Shanxi Province

Hao Tang; Zi Guang He; Hai Bo Lian

doi:10.4028/www.scientific.net/AMM.470.205

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 470Numerical Simulation Analysis on Stability of Coal...

Numerical Simulation Analysis on Stability of Coal Pillar of Empty Mine Goaf in North of Shanxi Province

Abstract:

The analysis model of coal pillar of a empty mine goaf in north of Shanxi province was constructed and the process of coal pillar from formation to weathering was simulated through the application of software of FLAC3D in this article. The stressstrain and the law of plasticity transformation of coal pillar from formation to weathering were analyzed and the long-term stability of coal pillar was forecasted. The result showed that the stability of coal pillar was bad for excessive excavated and weathering and the coal pillar will be broken easier for pressure and shear.

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Periodical:

Applied Mechanics and Materials (Volume 470)

Pages:

205-210

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.470.205

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Online since:

December 2013

Authors:

Hao Tang, Zi Guang He, Hai Bo Lian

Keywords:

Coal Pillar, Simulation, Stability

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