Abstract:In order to solve the problem that it is difficult to decide the optimal blasting scheme in open-pit blasting engineering, this paper establishes a combinatorial weights-fuzzy comprehensive evaluation model based on analytic hierarchy process, entropy weight method and fuzzy comprehensive evaluation. From the three aspects of quality of blasting, blasting safety and blasting efficiency rate of blasting chunk is selected the specific charge, vibration velocity, and other 12 factors as evaluation index of open-pit blasting effect, through the analytic hierarchy process (AHP) and entropy weight method to calculate the combination of each evaluation index weight value, and then combined with fuzzy comprehensive evaluation method calculated engineering blasting effect. Taking ME-13-01-1 blasting project in Gui "an New Area as an example, this model was applied to optimize four blasting schemes to be implemented. The blasting effect evaluation scores of each scheme were obtained by model calculation as follows: 75.131, 83.777, 80.095 and 88.026, and scheme 4 was determined to be the optimal blasting scheme.