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Experimental Study on Fusion Delay Detonation Network in Small Section Excavation
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Shao-bing QIN1, 2, Zi-dong XU3, Dao-yin WANG4, Zi-hang QIN1, Yong-xiang GE2
Blasting | 2024, 41(4) : 174 - 180
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Blasting | 2024, 41(4): 174-180
BLASTING SAFETY
Experimental Study on Fusion Delay Detonation Network in Small Section Excavation
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Shao-bing QIN1, 2, Zi-dong XU3, Dao-yin WANG4, Zi-hang QIN1, Yong-xiang GE2
Affiliations
  • 1.Wuhan Safety and Environmental Protection Institute Co., LTD., Sinosteel, Wuhan 430081, China
  • 2.School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
  • 3.Fujian Yishun Construction Engineering Co., LTD., Quanzhou 362200, China
  • 4.Yichang Gem Mountain Mining Co., LTD., Yichang 443145, China
Published: 2024-12-01 doi: 10.3963/j.issn.1001-487X.2024.04.022
Outline
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The construction of a blasting network is challenging, with high risks and costs associated with blasting equipment. Considering the geological structure, physical and mechanical properties of the excavation target, and the detonation characteristics of the detonating cable, a delayed detonation network was designed to combine a digital electronic detonator and a detonating cord. This design replaced the digital electronic detonator with the detonating cord in auxiliary and peripheral holes within the same section. In contrast, a single digital electronic detonator was used to initiate detonation to reduce the networking complexity and improve the overall reliability of the network. Field tests conducted at Guangshan iron mine and Gemstone phosphate mine verified the applicability of this method in different mineral environments. The results show that the fusion delay detonation network can significantly reduce detonation equipment costs, simplify initiation network construction, improve cutting effectiveness, and reduce safety risks during excavating small-section roadways in iron mines. However, during the underground phosphate rock test, the unique geological structure and the properties of phosphate rock prevented the designed network from achieving the expected results, indicating a need for further research.

small section excavation  /  digital electronic detonator  /  detonating cord  /  fuse  /  delayed initiation network
Shao-bing QIN, Zi-dong XU, Dao-yin WANG, Zi-hang QIN, Yong-xiang GE. Experimental Study on Fusion Delay Detonation Network in Small Section Excavation[J]. Blasting, 2024 , 41 (4) : 174 -180 . DOI: 10.3963/j.issn.1001-487X.2024.04.022
  • The Key Research and Development Program of Hubei Province(2022BEC040)
Year 2024 volume 41 Issue 4
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Article Info
doi: 10.3963/j.issn.1001-487X.2024.04.022
  • Receive Date:2024-05-10
  • Online Date:2026-03-19
  • Published:2024-12-01
Article Data
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History
  • Received:2024-05-10
Funding
The Key Research and Development Program of Hubei Province(2022BEC040)
Affiliations
    1.Wuhan Safety and Environmental Protection Institute Co., LTD., Sinosteel, Wuhan 430081, China
    2.School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
    3.Fujian Yishun Construction Engineering Co., LTD., Quanzhou 362200, China
    4.Yichang Gem Mountain Mining Co., LTD., Yichang 443145, China

Corresponding:

QIN Zi-hang (1996-), male, assistant engineer, mainly engaged in the research and application of mining safety technology, occupational health management and occupational hazard control technology, (E-mail) .
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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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