Optimization of structural parameters of deep stope based on combination weighting game theory

The Scale-Extending AHP method and the entropy method are used to calculate the subjective and objective weights of each index. Based on the game theory, the combination weighting model is established to calculate the combined weights of the evaluation indexes. Finally, Evaluation Model of Deep Stope Structure Arrangement is created based on game theory combined weights TOPSIS Method. According to the example calculation, the interrelated degree of each scheme is calculated as follows: scheme one, 58.05 %; scheme two, 41.95 %; scheme three, 41.61 %; scheme four, 56.87 %. So the best option scheme is the scheme one for which accesses to stopes is 4.5×4 m with pillar non-glued filling. Compared with the linear weighting method and the multiplicative normalization method, the results show that the advantages and disadvantages of the four schemes obtained by the three combinations of TOPSIS are the same, and the results of scheme one are the best, followed by the scheme Second, the program three, which demonstrate the game theory combined weight model is reasonable and feasible.