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Back Analysis of Surrounding Rock Parameters in Pingdingshan Mine Based on BP Neural Network Integrated Mind Evolutionary Algorithm

Author

Listed:
  • Jianguo Zhang

    (State Key Laboratory of Coking Coal Exploitation and Comprehensive Utilization, China Pingmei Shenma Group, Pingdingshan 467000, China)

  • Peitao Li

    (School of Civil Engineering, Wuhan University, Wuhan 430072, China)

  • Xin Yin

    (School of Civil Engineering, Wuhan University, Wuhan 430072, China)

  • Sheng Wang

    (State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430072, China)

  • Yuanguang Zhu

    (State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430072, China)

Abstract

The mechanical parameters of surrounding rock are an essential basis for roadway excavation and support design. Aiming at the difficulty in obtaining the mechanical parameters of surrounding rock and large experimental errors, the optimized BP neural network model is proposed in this paper. The mind evolutionary algorithm can adequately search the optimal initial weights and thresholds, while the neural network has the advantage of strong nonlinear prediction ability. So, the optimized BP neural network model (MEA-BP model) takes advantage of the two models. It can not only avoid the local extreme value problem but also improve the accuracy and reliability of the prediction results. Based on the orthogonal test method and finite element analysis method, training samples and test samples are established. The nonlinear relationship between rock mechanical parameters and roadway deformation is established by the BP model and MEA-BP model, respectively. The importance analysis of the three input variables shows that the ∆D is the most important input variable, while ∆BC has the smallest impact. The comparison of prediction performance between the MEA-BP model and BP model demonstrates that the optimized initial weights and thresholds can improve the accuracy of prediction value. Finally, the MEA-BP model has been well applied to predicting the mechanical parameter for the surrounding rock in the Pingdingshan mine area, which proves the accuracy and reliability of the optimized model.

Suggested Citation

  • Jianguo Zhang & Peitao Li & Xin Yin & Sheng Wang & Yuanguang Zhu, 2022. "Back Analysis of Surrounding Rock Parameters in Pingdingshan Mine Based on BP Neural Network Integrated Mind Evolutionary Algorithm," Mathematics, MDPI, vol. 10(10), pages 1-16, May.
  • Handle: RePEc:gam:jmathe:v:10:y:2022:i:10:p:1746-:d:819947
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    References listed on IDEAS

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    4. Gobeyn, Sacha & Mouton, Ans M. & Cord, Anna F. & Kaim, Andrea & Volk, Martin & Goethals, Peter L.M., 2019. "Evolutionary algorithms for species distribution modelling: A review in the context of machine learning," Ecological Modelling, Elsevier, vol. 392(C), pages 179-195.
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    Cited by:

    1. Lintian Miao & Zhonghui Duan & Yucheng Xia & Rongjun Du & Tingting Lv & Xueyang Sun, 2022. "Analysis of Factors Influencing Mining Damage Based on Engineering Detection and Machine Learning," Sustainability, MDPI, vol. 14(15), pages 1-23, August.

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