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| Numerical analysis research on horizontal pillar stability under mining disturbance |
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Received:April 14, 2014
Revised:April 22, 2014
Accepted:April 24, 2014
Published Online:August 10, 2015
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| DOI： |
| KeyWord:horizontal;pillar, mining;disturbance, numerical;calculation, stability;analysis |
| Author | Institution |
| Dong kai cheng |
Beijing General Research Institute of Mining and Metallurgy |
| yu shi bo |
Beijing General Research Institute of Mining and Metallurgy |
| cui song |
Beijing General Research Institute of Mining and Metallurgy |
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| Abstract: |
| Analysis of the -290m level isolation pillar stability in mining mechanical effects appeared in the process of mining by the method of numerical simulation. The research results show that stope mining cemented filled and the upper chamber excavated, stress transfer to the isolated pillar; After the mining lower stopes, the isolated pillar in the high stress concentration, most of the region of the pillar will recover from a tensile shear failure state to the elastic state in the process of mining Comprehensive analysis shows that the horizontal pillar is stable in the process of mining disturbance. |
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