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Optimization of Buffer Blasting Parameters for Deep-Hole Bench Blasting in Open-Pit Mine
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Niansheng CUI1, Xiaoming LOU2
Mining and Metallurgical Engineering | 2023, 43(4) : 44 - 47
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Mining and Metallurgical Engineering | 2023, 43(4): 44-47
MININP
Optimization of Buffer Blasting Parameters for Deep-Hole Bench Blasting in Open-Pit Mine
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Niansheng CUI1, Xiaoming LOU2
Affiliations
  • 1.Fujian Xinhuadu Engineering Co Ltd, Xiamen 361002, Fujian, China
  • 2.Zijin School of Geology and Mining, Fuzhou University, Fuzhou 350108, Fujian, China
Published: 2023-08-01 doi: 10.3969/j.issn.0253-6099.2023.04.009
Outline
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In order to improve the effect of deep-hole bench blasting in open-pit mines, a buffer blasting technique was proposed based on the on-site investigation of existing bench blasting parameters and rock fragmentation. In combination with simulation study by using LS-DYNA software and theoretical calculation, optimal borehole parameters and buffer thickness were finally determined, which were applied into the field blasting experiment. With buffer thickness of 5 m, borehole spacing of 5 m and burden of 4 m, the field blasting experiment brought an average fragmentation of less than 7%, showing a good blasting effect.

open-pit mining  /  bench blasting  /  buffer blasting  /  blasting parameter optimization  /  commercial experiment  /  numerical analysis
Niansheng CUI, Xiaoming LOU. Optimization of Buffer Blasting Parameters for Deep-Hole Bench Blasting in Open-Pit Mine[J]. Mining and Metallurgical Engineering, 2023 , 43 (4) : 44 -47 . DOI: 10.3969/j.issn.0253-6099.2023.04.009
Year 2023 volume 43 Issue 4
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Article Info
doi: 10.3969/j.issn.0253-6099.2023.04.009
  • Receive Date:2023-02-03
  • Online Date:2026-03-05
  • Published:2023-08-01
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  • Received:2023-02-03
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Affiliations
    1.Fujian Xinhuadu Engineering Co Ltd, Xiamen 361002, Fujian, China
    2.Zijin School of Geology and Mining, Fuzhou University, Fuzhou 350108, Fujian, China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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