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Optimization of Open-Pit Bench Blasting Parameters Based on Cylindrical Charge Blasting Crater Test
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Bo LI1, Yu ZHOU2, 3, Xinlu ZHAO1, Qiang LI3, Tao HU3, Hao WANG3, Jianguo WANG3, 4
Mining Research and Development | 2025, 45(8) : 37 - 44
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Mining Research and Development | 2025, 45(8): 37-44
Optimization of Open-Pit Bench Blasting Parameters Based on Cylindrical Charge Blasting Crater Test
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Bo LI1, Yu ZHOU2, 3, Xinlu ZHAO1, Qiang LI3, Tao HU3, Hao WANG3, Jianguo WANG3, 4
Affiliations
  • 1.Heidaigou Open-Pit Coal Mine, CHN Energy Zhunneng Group Co., Ltd., Ordos, Inner Mongolia 010300, China
  • 2.Haerwusu Open-Pit Coal Mine, CHN Energy Zhunneng Group Co., Ltd., Ordos, Inner Mongolia 010300, China
  • 3.Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China
  • 4.Advanced Blasting Technology Engineering Research Center of Yunnan Province Education Department, Kunming, Yunnan 650093, China
Published: 2025-08-25
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Based on the theory of cylindrical charge blasting carter, on-site blasting carter test with variable depth and variable hole spacing were designed and carried out to determine the optimal burial depth and blasting hole spacing. The determined blasting parameters were applied to the coarse sandstone bench of a large open-pit mine in Inner Mongolia. The results indicate that the optimal burial depth range for the cylindrical charge is 1.10 m to 1.16 m, where the energy utilization rate of the charge is high and the volume of the blasting crater is large. The detonation of adjacent cylindrical charges will generate stress wave superposition effect, which gradually weakens and disappears with the increase of hole spacing. The optimal hole spacing is 1.28 m to 1.60 m. The field application results show that the overall shape of the blasting pile is gentle slope, the rock fragmentation is uniform, and the shoveling efficiency is high. Research has confirmed that conducting cylindrical charge blasting crater tests has a guiding significance for optimizing blasting hole network parameters.

Cylindrical charge  /  Blasting crater test  /  Open-pit bench blasting  /  Similarity criterion  /  Parameter optimization
李波, 周宇, 赵鑫璐, 李强, 胡涛, 王浩, 王建国. 基于柱状药包爆破漏斗试验的露天台阶爆破参数优化研究. 矿业研究与开发, 2025 , 45 (8) : 37 -44 .
Bo LI, Yu ZHOU, Xinlu ZHAO, Qiang LI, Tao HU, Hao WANG, Jianguo WANG. Optimization of Open-Pit Bench Blasting Parameters Based on Cylindrical Charge Blasting Crater Test[J]. Mining Research and Development, 2025 , 45 (8) : 37 -44 .
Appendix
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Year 2025 volume 45 Issue 8
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  • Receive Date：2024-09-23
  • Online Date：2026-10-28
  • Published：2025-08-25
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History
  • Received：2024-09-23
Funding
Affiliations
    1.Heidaigou Open-Pit Coal Mine, CHN Energy Zhunneng Group Co., Ltd., Ordos, Inner Mongolia 010300, China
    2.Haerwusu Open-Pit Coal Mine, CHN Energy Zhunneng Group Co., Ltd., Ordos, Inner Mongolia 010300, China
    3.Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China
    4.Advanced Blasting Technology Engineering Research Center of Yunnan Province Education Department, Kunming, Yunnan 650093, 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
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Genus		 种数
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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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