Multiple Attribute Decision Making of Stope Parameters Based on SPA-GRA Model

Abstract

Aiming at the problems of multi-attribute and uncertainty in the selection of stope structural parameter scheme, we proposed a new multi-attribute decision-making model of stope parameters based on set pair analysis and grey relational theory. Based on the SPA-GRA theory, we used the dialectical viewpoint of opposition and unity to combine the determinacy and uncertainty factors, and establish the set pairs between evaluation set and index set respectively. In addition, we quantitatively analyzed the correlation degree of the set pair’s identity, diversity and opposites. Through comprehensively evaluating 6 characteristics of 5 stope schemes, we determined the grade of stope structural parameters and chose the best scheme. The research shows that the evaluation method is used to fully consider the identity, diversity and opposites of the comparison set, which avoids the inevitable one-sidedness in the past evaluation process. It is more objective, comprehensive and reasonable and it can be applied and popularized in the engineering field.