Abstract:

In order to make scientific evaluation on the optimization of mining method to avoid the subjective arbitrariness of experience analogy method of the under-three-objects orebody，based on entropy weight theory and CTODIM decision method，the mining method optimization evaluation model of a submarine hard rock mines was established.In consideration of four aspects of technique，economy，security and resources，and selected ten evaluation indexes to build the structure of evaluation indexes，and to get the entropy weight of the indexes.Then used CTODIM decision to calculate overall perceived dominance degree of mining method selection and sorting. Eventually determine the mechanized panel in filling mining method for the optimal solution.Mining practice shows that the decision model provides a scientific basis for the mining optimization of “under-three objects”，and it has a certain theoretical significance and practical value，and also provides a new method for the similar systems engineering decision problem.

Key words: optimization of mining method, entropy weight, CTODIM decision making method, perceived dominance degree