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Supervisor：Jiangxi University Of Science And Technology
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Jiangxi Nonferrous Metals Society
ISSN：1674-9669
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CODEN YJKYA9
Volume 8 Issue 1
Feb.  2017
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HU Mingbing, CHEN Zhongxi, XIAO Fan, LI Gang, ZHAO Kui, ZHANG Liang, CHENG Sanjian. Thickness optimization for stage pillar based on blasting vibration[J]. Nonferrous Metals Science and Engineering, 2017, 8(1): 127-133. DOI: 10.13264/j.cnki.ysjskx.2017.01.022
Citation: HU Mingbing, CHEN Zhongxi, XIAO Fan, LI Gang, ZHAO Kui, ZHANG Liang, CHENG Sanjian. Thickness optimization for stage pillar based on blasting vibration[J]. Nonferrous Metals Science and Engineering, 2017, 8(1): 127-133. DOI: 10.13264/j.cnki.ysjskx.2017.01.022
shu

Thickness optimization for stage pillar based on blasting vibration

  • 1.

    School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China

  • 2.

    Shanxi Zhongtiaoshan Engineering Design and Research Co. Ltd., Yuncheng 043700, China

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  • Received Date: February 28, 2016
  • Published Date: February 27, 2017
    Graphical Abstract
    • Abstract
  • To determine the minimum reserve safe thickness level of stage pillar, the middle stope mining from -100 m to -150 m in a copper mine in Shangrao City was studied. According to the effects of blasting vibration to practical mining, the designed stage pillar with thickness of 5 m is checked by FLAC3D. A reasonable minimum reserve safe thickness level of stage pillar is proposed. Through comparative analysis of simulation results under static and dynamic load blasting conditions, the results show that stopes are stable under static condition when the thickness of stage pillar is 5 m or 6 m. Under the blasting dynamic load condition, the stope is stable if the thickness of stage pillar is 6 m. However, when it is 5 m, the stope is in a less stable state. On the basis of analyzing theoretical model, the minimum reserve safe thickness level of stage pillars with thickness of 6 m is concluded.
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    • References (19)
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