Evaluation of Excavation Ergonomics of Drill and Blast Method Based on Game Theory G2-EW-TOPSIS Model

The demand for tunnel construction continues to grow by leaps and bounds. Therefore, mechanization is receiving more attention improving excavation ergonomics. To enhance the scientific comprehensive evaluation results of drilling blasting method ergonomics, a set methods ergonomics based on game theory G2-EW-TOPSIS model proposed. From three dimensions efficiency, process duration, synergistic influence factors, index system consisting 11 indicators such as perimeter hole quality, cost constructed. subjective objective weights are calculated using improved sequential relationship analysis (G2 method) entropy weight method, respectively, combination carried out (GTM) with Nash equilibrium goal. indices classified into five grades: excellent (I), good (II), average (III), rather poor (IV), (V), according daily construction. be evaluated combined weights, technique order preference similarity an ideal solution (TOPSIS). proposed rating was used analyze Shangtianling Tunnel in Chizhou–Huangshan High-Speed Railway jumbo drills (JD) machines (DM) large- small-mileage construction, obtain each object. research show that established can effectively identify main factors affecting drill blast has certain reference value.