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Optimization Analysis of Stope Structure Parameters of Upward Layered Point Pillar Filling Mining Method in a Mine
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Zhijun ZHANG1, Ning YANG2, 3, Qinglin REN2, 3, Weixing LIN2, 3
Mining Research and Development | 2025, 45(10) : 43 - 52
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Mining Research and Development | 2025, 45(10): 43-52
Optimization Analysis of Stope Structure Parameters of Upward Layered Point Pillar Filling Mining Method in a Mine
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Zhijun ZHANG1, Ning YANG2, 3, Qinglin REN2, 3, Weixing LIN2, 3
Affiliations
  • 1.MCC Tongsin Resources Ltd., Beijing 100028, China
  • 2.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China
  • 3.Research Center for National Metal Mining Engineering Technology, Changsha, Hunan 410012, China
Published: 2025-10-25
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With the increase of mining depth, open stope mining method is facing greater safety hazards and environmental pressure. Filling mining method, as a safe and green mining technology, has been widely used in mining. Taking a large copper mine as the research object, combined with theoretical analysis and numerical simulation methods, the stope structure parameters of upward layered point pillar filling mining method were optimized, and the effects of stope length, point pillar size and point pillar center spacing on stope stability and mine production capacity were systematically analyzed. The results show that when the stope length is 65 m, the point pillar size is 5 m×5 m, and the point pillar center spacing is 15 m, the stability of the mine stope is high and the production efficiency is the best. The optimization scheme of stope structure parameters can not only effectively guarantee the safe mining of the mine, but also improve the utilization rate of resources, which provides a scientific basis for the application of filling mining technology in similar mines.

Upward layered point pillar filling mining method  /  Stope structural parameter  /  Stope length  /  Point pillar size  /  Point pillar center spacing
Zhijun ZHANG, Ning YANG, Qinglin REN, Weixing LIN. Optimization Analysis of Stope Structure Parameters of Upward Layered Point Pillar Filling Mining Method in a Mine[J]. Mining Research and Development, 2025 , 45 (10) : 43 -52 .
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Year 2025 volume 45 Issue 10
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Article Info
  • Receive Date：2025-07-17
  • Online Date：2026-02-06
  • Published：2025-10-25
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  • Received：2025-07-17
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Affiliations
    1.MCC Tongsin Resources Ltd., Beijing 100028, China
    2.Changsha Institute of Mining Research Co., Ltd., Changsha, Hunan 410012, China
    3.Research Center for National Metal Mining Engineering Technology, Changsha, Hunan 410012, 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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