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Optimization of Sequence of Drift Stoping by Cemented Backfilling Under Complex Stress Conditions
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Yanlong LI1, Longzhe YU2, Zhongjie CHEN1, 3, Biao YU2, Wenjie WANG2
Mining and Metallurgical Engineering | 2024, 44(4) : 144 - 149
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Mining and Metallurgical Engineering | 2024, 44(4): 144-149
• MINING •
Optimization of Sequence of Drift Stoping by Cemented Backfilling Under Complex Stress Conditions
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Yanlong LI1, Longzhe YU2, Zhongjie CHEN1, 3, Biao YU2, Wenjie WANG2
Affiliations
  • 1.No.2 Mine of Jinchuan Group Co., Ltd., Jinchang 737100, Gansu, China
  • 2.School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China
  • 3.School of Resources and Safety Engineering, Central South University, Changsha 410083, Hunan, China
Published: 2024-08-01 doi: 10.3969/j.issn.0253-6099.2024.04.027
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For discussing rational sequence of drift stoping by cemented backfilling under complex stress conditions, with No.2 mine of Jinchuan Group as an example, a three-dimensional numerical model was constructed with a numerical simulation software, and was then used to analyze the stress field, displacement field and plastic failure zone in drift stoping with different sequences. On this basis, the drift stoping sequence, after optimization by adopting a combined weighting and fuzzy comprehensive evaluation, was then adopted in an on-site industrial experiment. The results show that both mining sequence by overhand or underhand stoping and drift stoping with different spatial sequence can bring a certain influence to the maximum principal stress, maximum tensile stress, vertical displacement, plastic failure zone, as well as the maximum principal stress and vertical displacement in the next stope nearby; mining sequence of underhand stoping followed by overhand stoping, or firstly drift stoping of vertical ore mass, can make the overall mining with higher safety. The on-site experiment with such mining sequence presents better effect. It is concluded that this research can provide some reference in the design and optimization of mining sequence for drift stoping by cemented backfilling under complex stress conditions.

complex stress conditions  /  cemented backfilling  /  underhand sublevel drift stoping  /  drift stoping sequence  /  stress on stope  /  numerical analysis
Yanlong LI, Longzhe YU, Zhongjie CHEN, Biao YU, Wenjie WANG. Optimization of Sequence of Drift Stoping by Cemented Backfilling Under Complex Stress Conditions[J]. Mining and Metallurgical Engineering, 2024 , 44 (4) : 144 -149 . DOI: 10.3969/j.issn.0253-6099.2024.04.027
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Article Info
doi: 10.3969/j.issn.0253-6099.2024.04.027
  • Receive Date：2024-03-12
  • Online Date：2026-03-18
  • Published：2024-08-01
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  • Received：2024-03-12
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Affiliations
    1.No.2 Mine of Jinchuan Group Co., Ltd., Jinchang 737100, Gansu, China
    2.School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China
    3.School of Resources and Safety Engineering, Central South University, Changsha 410083, Hunan, 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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