Research on Mining Method Optimization Model Based on GRA and TOPSIS
There are many factors that affect the selection of mining methods.A mining method optimization model based on G1 method and GRA-TOPSIS was established to achieve comprehensive scientific judgment of multiple mining schemes.Taking a gently inclined thick and large ore body in Shandong Province as the research object,three mining plans were preliminarily selected.Based on the construction of the evaluation index system for mining plan optimization,the G1 method was used to assign weights to the indicators,and the GRA-TOPSIS principle was used to calculate the grey correlation closeness degree to determine the ranking of the advantages and disadvantages of each mining plan.The results showed that Plan I was the optimal plan,and the optimization results were in line with engineering reality and met the expected needs.
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