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Study on the Influence of Different Charge Structures on Morphology of Explosion Pile based on GDEM-BlockDyna
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Ken ZHANG1, Yan YU2, Ben LIU3, Jian-hua ZHANG1, Gang HUANG1, Jiang-jiang LI4, Eric Munene Kinyua1
Blasting | 2024, 41(2) : 127 - 135
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Blasting | 2024, 41(2): 127-135
• BLASTING IN ORE AND ROCK •
Study on the Influence of Different Charge Structures on Morphology of Explosion Pile based on GDEM-BlockDyna
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Ken ZHANG1, Yan YU2, Ben LIU3, Jian-hua ZHANG1, Gang HUANG1, Jiang-jiang LI4, Eric Munene Kinyua1
Affiliations
  • 1.School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
  • 2.Huaxin Cement Co., Ltd., Wuhan 430073, China
  • 3.Huaxin Cement (Chenzhou) Co., Ltd., Chenzhou 423022, China
  • 4.Wuhan University of Science and Technology, Wuhan 430081, China
Published: 2024-06-01 doi: 10.3963/j.issn.1001-487X.2024.02.016
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This study focuses on the impact of charge structure on the distribution of blast pile morphology in a limestone mine. A combination of theoretical analysis, GDEM-BlockDyna numerical simulation, and on-site optimization tests were conducted to investigate the morphological distribution of step blasting and blast reactors. The change in blast pile morphology with different charge structures was analyzed. The results indicate that the looseness and throwing distance of the blast pile initially increase and then decrease with an increase in the upper charge proportion of the interval section. The height of the explosion pile generally decreases but shows an initial decrease followed by an increase when there is a large air interval proportion. Additionally, the slope angle of the blast pile increases with an increase in charge proportion in the upper section of the interval section but decreases when this proportion becomes too large. These findings demonstrate that explosive pile patterns vary according to charge structure. Furthermore, through numerical simulation methods, effective optimization can be achieved for charge structure, leading to improved on-site explosion patterns and economic benefits for mining operations.

step blasting  /  numerical simulation  /  charge structure  /  burst pattern
Ken ZHANG, Yan YU, Ben LIU, Jian-hua ZHANG, Gang HUANG, Jiang-jiang LI, Eric Munene Kinyua. Study on the Influence of Different Charge Structures on Morphology of Explosion Pile based on GDEM-BlockDyna[J]. Blasting, 2024 , 41 (2) : 127 -135 . DOI: 10.3963/j.issn.1001-487X.2024.02.016
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  • National Natural Science Foundation of China(42271296)
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Year 2024 volume 41 Issue 2
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Article Info
doi: 10.3963/j.issn.1001-487X.2024.02.016
  • Receive Date：2023-08-14
  • Online Date：2026-03-20
  • Published：2024-06-01
Article Data
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History
  • Received：2023-08-14
Funding
National Natural Science Foundation of China(42271296)
Affiliations
    1.School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
    2.Huaxin Cement Co., Ltd., Wuhan 430073, China
    3.Huaxin Cement (Chenzhou) Co., Ltd., Chenzhou 423022, China
    4.Wuhan University of Science and Technology, Wuhan 430081, China

Corresponding:

YU Yan (1981-), female, Qixia County, Yantai City, Shandong Province, bachelor's degree, resource development engineering, (E-mail) .
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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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