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Rock Mass Classification Method Based on Entropy Weight–TOPSIS–Grey Correlation Analysis

Author

Listed:
  • Bing Dai

    (School of Resource Environment and Safety Engineering, University of South China, Hengyang 421001, China)

  • Danli Li

    (School of Resource Environment and Safety Engineering, University of South China, Hengyang 421001, China)

  • Lei Zhang

    (School of Resource Environment and Safety Engineering, University of South China, Hengyang 421001, China)

  • Yong Liu

    (School of Resource Environment and Safety Engineering, University of South China, Hengyang 421001, China
    School of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China)

  • Zhijun Zhang

    (School of Resource Environment and Safety Engineering, University of South China, Hengyang 421001, China)

  • Shirui Chen

    (School of Resource Environment and Safety Engineering, University of South China, Hengyang 421001, China)

Abstract

The accurate and reliable classification of rock mass is the basis of a reasonable engineering design. In the Xishan mining region of Sanshandao Gold Mine, three conventional rock mass classification methods of Tunneling Quality Index (Q), Rock Mass Rating (RMR) and China National Standard-basic quality (BQ), were compared in the burial depth area above 780 m, and it was discovered that the classification results of different rock mass classification methods had a low coincidence rate in the deep area; Therefore, this paper adopted entropy weight method, TOPSIS method and grey correlation analysis method to calculate the entropy weight and relative closeness of different methods in different middle sections. The study’s findings revealed that in the deep area, the relative closeness between each classification mass was: RMR > Q > BQ; Based on the above results, the IRMR method with modified RMR was selected for comprehensive analysis, and the concept of importance degree of evaluation index was defined; it was found that the importance degree of evaluation index of in-situ stress loss was the highest, while the importance degree of joint direction was the lowest; The “ETG” rock mass classification method based on “site-specific” is established, which provides a reference for the establishment of deep rock mass classification method.

Suggested Citation

  • Bing Dai & Danli Li & Lei Zhang & Yong Liu & Zhijun Zhang & Shirui Chen, 2022. "Rock Mass Classification Method Based on Entropy Weight–TOPSIS–Grey Correlation Analysis," Sustainability, MDPI, vol. 14(17), pages 1-18, August.
  • Handle: RePEc:gam:jsusta:v:14:y:2022:i:17:p:10500-:d:895427
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    References listed on IDEAS

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    1. M. L. Walker & Y. H. Dovoedo & S. Chakraborti & C. W. Hilton, 2018. "An Improved Boxplot for Univariate Data," The American Statistician, Taylor & Francis Journals, vol. 72(4), pages 348-353, October.
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    Cited by:

    1. Hongxing Deng & Wen Wen & Jie Zhou, 2023. "Competitiveness Evaluation of Express Delivery Enterprises Based on the Information Entropy and Gray Correlation Analysis," Sustainability, MDPI, vol. 15(16), pages 1-11, August.
    2. Jianjun Wang & Chicheng Ma & Sai Wang & Xiaojuan Lu & Dongyi Li, 2022. "Risk Assessment Model and Sensitivity Analysis of Ordinary Arterial Highways Based on RSR–CRITIC–LVSSM–EFAST," Sustainability, MDPI, vol. 14(23), pages 1-19, December.

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