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LI Zhonghui. Bolt Support Technology in Zhangshigou Coal Mine[J]. Safety in Coal Mines, 2014, 45(1): 74-77.
Citation: LI Zhonghui. Bolt Support Technology in Zhangshigou Coal Mine[J]. Safety in Coal Mines, 2014, 45(1): 74-77.
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Bolt Support Technology in Zhangshigou Coal Mine

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  • Published Date: January 19, 2014
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    • Abstract
  • Aiming at the mining conditions of 15# coal seam working face in Zhangshigou Coal Mine, it was based on the determination of physical-mechanical properties of 15# coal and its roof and floor rocks. Though the stability analysis of roadway surrounding rock, the anchoring methods and parameters were obtained, it was verified with numerical calculation. The surrounding rock deformation observation showed that the roof maximum variation was 79 mm, the maximum convergence amount of two sidewalls was 108 mm, which indicated that this supporting scheme improved the whole load capacity of roadway supporting structure, and it could control effectively the deformation of surrounding rock.
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    • References (5)
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