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Parameter Selection of Deep-hole Blasting Based on Blasting Crater Test
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Hongning FU1, Haiyang LIU1, Zhiyong HOU1, Zhengping KUANG1, Zaidao LIU1, Fan YANG1, Yunchao MA1, Dongrui LIU2, Weixing ZHANG2
Uranium Mining and Metallurgy | 2023, 42(4) : 8 - 12
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Uranium Mining and Metallurgy | 2023, 42(4): 8-12
• MINING AND HYDROMETALLURGY •
Parameter Selection of Deep-hole Blasting Based on Blasting Crater Test
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Hongning FU1, Haiyang LIU1, Zhiyong HOU1, Zhengping KUANG1, Zaidao LIU1, Fan YANG1, Yunchao MA1, Dongrui LIU2, Weixing ZHANG2
Affiliations
  • 1.Shaoguan Jinyuan Uranium Co., Ltd., CNNC, Shaoguan 512329, China
  • 2.Changsha Institute of Mining Research Co., Ltd., Changsha 410012, China
Published: 2023-11-20 doi: 10.13426/j.cnki.yky.2023.04.05
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Deep-hole blasting is used in the mining of hard rock uranium ore in Mianhuakeng mine, the blasting parameters are derived from the experience value of the diameter of the blasting hole, which has the problem of low blasting quality. The optimum depth and radius of 300 g charge are 0.65 m and 0.63 m respectively from the single hole blasting crater test, the optimum distance between holes is 0.9~1.0 m and its ratio to the optimum crater radius is 1.43~1.59 from the multi-hole blasting test with variable hole spacing, the optimum minimum resistance line from the slope step blasting is 0.41 m. Based on the blasting similarity law, the optimum hole spacing of 65 mm deep hole is calculated to be 1.7 m. Considering that the test results of slope step blasting are not ideal, the empirical value of hole bottom density coefficient of fan-shaped hole layout is 1.0~1.3, and the row spacing of deep-hole blasting is recommended to be 1.3 m after calculation.

hard rock mine  /  deep-hole blasting  /  blasting crater test  /  blasting parameters
付宏宁, 刘海洋, 侯志永, 匡正平, 刘再道, 杨帆, 马云超, 刘东锐, 张为星. 基于爆破漏斗试验的深孔爆破参数选择. 铀矿冶, 2023 , 42 (4) : 8 -12 . DOI: 10.13426/j.cnki.yky.2023.04.05
Hongning FU, Haiyang LIU, Zhiyong HOU, Zhengping KUANG, Zaidao LIU, Fan YANG, Yunchao MA, Dongrui LIU, Weixing ZHANG. Parameter Selection of Deep-hole Blasting Based on Blasting Crater Test[J]. Uranium Mining and Metallurgy, 2023 , 42 (4) : 8 -12 . DOI: 10.13426/j.cnki.yky.2023.04.05
Appendix
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Year 2023 volume 42 Issue 4
62
15
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Article Info
doi: 10.13426/j.cnki.yky.2023.04.05
  • Receive Date：2023-04-13
  • Online Date：2026-10-23
  • Published：2023-11-20
Article Data
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History
  • Received：2023-04-13
Affiliations
    1.Shaoguan Jinyuan Uranium Co., Ltd., CNNC, Shaoguan 512329, China
    2.Changsha Institute of Mining Research Co., Ltd., Changsha 410012, China
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https://castjournals.cast.org.cn/joweb/yky/EN/10.13426/j.cnki.yky.2023.04.05
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
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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