Mining Production Scale Optimization of Metal Mines Due to Transformation from Deep Open-Pit to Underground Mining

摘要

Rationally determining the scale of production is one of the key technical problems of the mining from open-pit to underground. In this paper, technical, economic and social factors on the production scale of Daye Iron Mine are considered comprehensively, and the theory and method of fuzzy comprehensive evaluation are used to select. Then, verified by the gray system theory, the optimal scale of production after from open-pit to underground mining is obtained, which provides an advantaged theoretical basis for decision-making and design of the mine.