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Parameter Optimization for Shaft Support Based on Combined Weighting and Response Surface Methodology
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Chao LIU1, Yunpu QI1, Zhanglun SONG1, Liang WANG1, Dingyang CAO2, Dapeng CHEN2
Mining and Metallurgical Engineering | 2023, 43(2) : 16 - 20
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Mining and Metallurgical Engineering | 2023, 43(2): 16-20
• MINING •
Parameter Optimization for Shaft Support Based on Combined Weighting and Response Surface Methodology
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Chao LIU1, Yunpu QI1, Zhanglun SONG1, Liang WANG1, Dingyang CAO2, Dapeng CHEN2
Affiliations
  • 1.North Mining Co Ltd, Beijing 100053, China
  • 2.School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China
Published: 2023-04-01 doi: 10.3969/j.issn.0253-6099.2023.02.004
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For determining support parameters in an advancement project of the secondary shaft of Comica Mining's Kamoya copper-cobalt mine in the DRC, 25 sets of testing schemes were designed by using Box-Behnken based on the engineering geological conditions. After numerical analysis with FLAC3D, the mechanical response characteristics under various support conditions were obtained. In combination with technical and economic requirement, analysis hierarchy process and principal component analysis were adopted for the combined weighting of nine selected indices, including advancement cost, maximum tensile stress among others, and then a comprehensive evaluating model was established for the parameters of shaft support. A multivariate second-order regression prediction equation was then obtained with the comprehensive scores as response indicators, and shaft support parameters as the variables. It is found that shaft is supported with 35 anchor bolts with thread length of 2.5 m arranged in horizontal direction, with spacing of 1 m in vertical direction, as well as the concrete lining with strength grade of C35, and the best comprehensive benefits can be obtained.

response surface methodology  /  analysis hierarchy process (AHP)  /  principal component analysis (PCA)  /  shaft  /  support  /  optimization
Chao LIU, Yunpu QI, Zhanglun SONG, Liang WANG, Dingyang CAO, Dapeng CHEN. Parameter Optimization for Shaft Support Based on Combined Weighting and Response Surface Methodology[J]. Mining and Metallurgical Engineering, 2023 , 43 (2) : 16 -20 . DOI: 10.3969/j.issn.0253-6099.2023.02.004
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Article Info
doi: 10.3969/j.issn.0253-6099.2023.02.004
  • Receive Date：2022-10-12
  • Online Date：2026-03-05
  • Published：2023-04-01
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  • Received：2022-10-12
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Affiliations
    1.North Mining Co Ltd, Beijing 100053, China
    2.School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, 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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