Rapid Excavation Technical Research of Blasting Mining Face in Liangzhuang Mine

Zheng Bin Yan; Xiao Xu; Tao Tao Li; Shang Wu; Shi Yan Ma

doi:10.4028/www.scientific.net/AMM.580-583.2550

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The Influences and the Mechanism of Action of Grinding Aid Agent during Micro Fine Particle of Lean Hematite Ore of Grinding Operation
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Rapid Excavation Technical Research of Blasting Mining Face in Liangzhuang Mine
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The Research of Gas Drainage Technology in Daning Coal Mine
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 580-583Rapid Excavation Technical Research of Blasting...

Rapid Excavation Technical Research of Blasting Mining Face in Liangzhuang Mine

Abstract:

The paper studied the driving blasting mechanism and blasting parameters in working face, in order to improve the advance rate of blasting mining face in Liangzhuang mine. The research results show that taking the air column interval charging structure can reduce the peak pressure on the borehole wall, change the distribution ratio of explosion energy, decrease the smash district radius and increase the effect of secondary stress wave. To improve the energy utilization efficiency was improved in this structure, the consumption was reduced by 35.3%, the cyclical footage from 0.8m to 1.2m and crushing effect is obvious.

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Periodical:

Applied Mechanics and Materials (Volumes 580-583)

Pages:

2550-2553

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.580-583.2550

Citation:

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Online since:

July 2014

Authors:

Zheng Bin Yan, Xiao Xu, Tao Tao Li, Shang Wu, Shi Yan Ma

Keywords:

Air Column Interval Charging Structure, Blasting Face, Blasting Parameters, Drive Speed

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References

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