Application of set pair analysis on safety evaluation of tailing dam stability
Wei Yong · Journal of Safety Science and Technology · 2012
By applying correlation analysis method,the parameters and design indexes related to the stability of tailing dam were classified,and the index system for evaluating the stability of tailing dam.The set pair analysis theory was applied to establish the model for evaluating the stability of tailing dam.Combining with the hierarchy analysis method,the weights of the indexes affecting the stability of tailing dam were determined by domestic tailingreservoir experts system evaluation these indexes.Based on the set pair analysis theory,these indexes related to the stability of tailing dam were classified to three grades,and because of normalized connection degree(μ) values ranging from-1 to 1 and in accordance with the equipartition principle,the method for classifying the stability grades of tailing dam and corresponding standard were proposed accordingly.At last,the model for evaluating the stability of tailing dam was applied to calculate and analyze the stability of a tailing dam,and the application indicated that the established index system and safety model for evaluating the stability of tailing dam in the paper can be used to evaluate the stability status of tailing dam in the operation period of tailing reservoir.