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Research and Application of Smooth Blasting Technology in Fault Fracture Zone
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Dan WEI1, Hai-hua HUANG2, Si-you PENG2, Long-sheng WANG2
Blasting | 2023, 40(1) : 85 - 91
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Blasting | 2023, 40(1): 85-91
• BLASTING IN ORE AND ROCK •
Research and Application of Smooth Blasting Technology in Fault Fracture Zone
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Dan WEI1, Hai-hua HUANG2, Si-you PENG2, Long-sheng WANG2
Affiliations
  • 1.Guizhou Geology and Mining Group Co., Ltd., Guiyang 550000, China
  • 2.Guangdong Guangye Cloud Sulphur Mining Co., Ltd., Yunfu 527300, China
Published: 2023-03-01 doi: 10.3963/j.issn.1001-487X.2023.01.012
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In order to study the reasonable smooth blasting parameters such as smooth blasting range, hole spacing, line charge concentration and charge structure in a fault fracture zone, empirical formula is first used for calculation. Then the blasting effect is compared by field blasts to analyze the influencing factors of smooth blasting in a fault fracture zone, so that to improve the blasting parameters and charging structure. Research results and field applications show that the smooth blasting effect is relatively good when the charge column size is ϕ 60 mm×400 mm with an uncoupled charge structure, the hole spacing is 1.2~1.5 m, the smooth blasting range is 2.5~3.0 m, the linear charge concentration is 1.2~1.4 kg/m, and the air deck length is 0.6~0.8 m. When the charge column size is ϕ 60 mm×600 mm with an uncoupled charge structure, the hole spacing is 1.2~1.5 m, the smooth blasting range is 2.5~3.0 m, the linear charge concentration is 0.7~1.0 kg/m, the stemming length is 1m,, the air deck length under the stemming is 3.0~4.0 m and the normal air deck length is 1.5~2.0 m, the smooth blasting effect is the most ideal with a smooth and stable slope. Moreover, the latter scheme has a better economic return than the former one. The selection of blasting parameters, charge structure and charge column for this smooth blasting technology can provide reference for similar projects.

smooth blasting  /  analysis after explosion  /  hole spacing  /  smooth blasting range  /  linear charge concentration  /  charge structure
Dan WEI, Hai-hua HUANG, Si-you PENG, Long-sheng WANG. Research and Application of Smooth Blasting Technology in Fault Fracture Zone[J]. Blasting, 2023 , 40 (1) : 85 -91 . DOI: 10.3963/j.issn.1001-487X.2023.01.012
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Year 2023 volume 40 Issue 1
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doi: 10.3963/j.issn.1001-487X.2023.01.012
  • Receive Date：2022-09-28
  • Online Date：2026-03-19
  • Published：2023-03-01
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  • Received：2022-09-28
Affiliations
    1.Guizhou Geology and Mining Group Co., Ltd., Guiyang 550000, China
    2.Guangdong Guangye Cloud Sulphur Mining Co., Ltd., Yunfu 527300, China
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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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