Abstract:

In order to make a synthetic assessment about filling schemes optimization，the synthetic assessment index system of filling scheme was established according to the analytic hierarchy process（AHP） and TOPSIS methods.Based on the four filling schemes optimization in a metal mine，considering the economic，technical，security and etc，which influenced the evaluation indexes（filling difficulty level，roof-contacted filling level，settlement of filling body，strength of filling body，etc） of filling schemes，the influence factor indexes of the filling schemes were transformed into multi-factor decision matrix；the weight of the influence factors matrix were gotten according to the AHP method，and then，the AHP-TOPSIS multi-factor decision model was established with the fundamental theory of TOPSIS，and the synthetic superior degree of the four filling schemes were obtained.The research results show that the synthetic superior degree of filling schemes are 36.2%，85.2%，57.6%，32.0%，respectively，according to the method，and thus determine the second scheme（consolidated filling method） is the optimal one.The optimization scheme is consistent with an actual mining，filling effect is good.Practical application shows that the decision model provides a new method to the filling schemes optimization.

Key words: filling schemes, analytic hierarchy process, TOPSIS methods, comprehensive evaluation system model, evaluation indexes