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| Research on deformation mechanism and support of the Baluba copper mine’s central tramming haulage |
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Received:February 27, 2014
Revised:April 09, 2014
Accepted:April 09, 2014
Published Online:April 20, 2015
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| DOI： |
| KeyWord:central tramming haulage ;deformation mechanism; tunnel repair; cable anchor; combined support |
| Author | Institution |
| Wang Jingjun |
CNMC Luanshya Copper Mines PLC |
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| Abstract: |
| The 580ml central tramming haulage of CNMC Luanshya copper mine was serious collapsed before the first time repairing that used the arch set for supporting, but it still can’t stop the deformation. After researching on the deformation mechanism, we realized that the there had some problem of stress concentration in the rock, some area was not steady like transition area because the rock in this area is very weak, also there has some rock which was easily hydrated and expanded under the effect of water, and the support was in the poor condition. These were the reasons leading to the deformation. After analyzing and thinking about the condition, we considered that the tunnel should be repaired immediately, the combined support should be used in order to stopping the deformation as soon as possible. |
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