Journal of Hebei University(Natural Science Edition) ›› 2023, Vol. 43 ›› Issue (3): 330-336.DOI: 10.3969/j.issn.1000-1565.2023.03.014

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Three-way decision method for rock mass quality evaluation of underground engineering

MAO Hua1,2,LIU Qian1,2,LIAN Mengxuan1,2,WANG Gang3, ZHANG Zhiming1   

  1. 1.College of Mathematics and Information Science, Hebei University, Baoding 071002, China; 2.Hebei Key Laboratory of Machine Learning and Computer Intelligence, Baoding 071002, China; 3.College of Life Sciences, Hebei University, Baoding 071002, China
  • Received:2021-11-19 Online:2023-05-25 Published:2023-06-15

Abstract: In order to improve the evaluation efficiency of underground engineering, the method of three-way decision is used to evaluate the stability of surrounding rock. Firstly,the surrounding rock of underground engineering is sorted by fuzzy relative comparison decision. Afterwards, the decision with the least expected loss is made by Bayesian decision rule. Then, the quality of surrounding rock of underground engineering is evaluated by three-way decision, and the classification results are obtained. At last, the model is applied to a practical project to verify the scientificity and feasibility of the evaluation model.It lays a good theoretical foundation for the further application of computer in surrounding rock quality evaluation.

Key words: three-way decision, rock quality evaluation, fuzzy decision, Bayesian criterio

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