Optimization of Mining Method for Gently Inclined Broken Thin Vein Based on Bayes Algorithm and Numerical Simulation

WANG Xiaolin; LI Zechen; GUO Jinping; LIU Yaxiong; LU Yongli; LU Jiaoxu; LU Caiwu; GU Qinghua

doi:10.13779/j.cnki.issn1001-0076.2024.02.008

2024 Vol. 44, No. 2

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Article navigation > Conservation and Utilization of Mineral Resources > 2024 > 44(2): 58-66

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WANG Xiaolin, LI Zechen, GUO Jinping, LIU Yaxiong, LU Yongli, LU Jiaoxu, LU Caiwu, GU Qinghua. Optimization of Mining Method for Gently Inclined Broken Thin Vein Based on Bayes Algorithm and Numerical Simulation[J]. Conservation and Utilization of Mineral Resources, 2024, 44(2): 58-66. doi: 10.13779/j.cnki.issn1001-0076.2024.02.008

Citation:

WANG Xiaolin, LI Zechen, GUO Jinping, LIU Yaxiong, LU Yongli, LU Jiaoxu, LU Caiwu, GU Qinghua. Optimization of Mining Method for Gently Inclined Broken Thin Vein Based on Bayes Algorithm and Numerical Simulation[J]. Conservation and Utilization of Mineral Resources, 2024, 44(2): 58-66. doi: 10.13779/j.cnki.issn1001-0076.2024.02.008

Optimization of Mining Method for Gently Inclined Broken Thin Vein Based on Bayes Algorithm and Numerical Simulation

1.
School of Resources Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi, China
2.
Henan Fender mining Co., LTD, Luoyang 471000, Henan, China
3.
Department of Emergency Management of Shaanxi Province, Xi’an 710021, Shaanxi, China

More Information

Corresponding author: GUO Jinping, 414075711@qq.com

Received Date: 22 February 2024

Publish Date: 15 April 2024

Abstract

Abstract

To achieve safe, efficient, and economically viable mining of a manganese mine with a fractured, low−grade, gently sloping, thin ore body, five technically feasible mining methods were first designed based on the mining conditions. Subsequently, a mining method optimization was conducted, utilizing a system established on Bayes and Monte Carlo methods, encompassing 17 evaluation criteria covering both technical and economic aspects. The research findings indicated that the comprehensive scores of the shallow hole approach V−cut retreat/advance mining method, the medium−deep hole approach V−cut/parallel throw mining method, and the shallow hole drill head oblique cut mining method were 0.524, 0.193, 0.214, 0.228, and 0.221, respectively. The shallow hole approach V−cut retreat mining method was found to be the most optimal. Finally, MIDAS numerical simulation was employed to analyze the stability of four different span stops of the selected mining methods. A span of 12 meters was found to achieve a favorable balance between stope stability and ore recovery rate. Considering technical, economic, and safety indicators, the optimization approach for mining methods and stope structural parameters can assist in selecting a safe and efficient mining scheme for the mine, and can also serve as a reference for similar mines to improve their operations.
- gentle dip thin vein /
- broken roof /
- mining method /
- design and optimization /
- numerical simulation; stope span

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References

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