| Production capacity is one of the important economic and echnical index of the mine production, the stable of it affects the scale of construction ind long-term development of mining enterprises stability.As ore of the old mine of Anshan Iron and Steel Company, Dagushan has provided a guarantee for the development of Anshan Iron and steel company since its construction,, because of the complex and changeable market of iron and steel, in the new period, the continuous improvement of production efficiency. and the increasing demand of iron ore, Anshan Iron and Steel Company raises never and higher demand for the production capacity of its subordinate mines.Under such a background, Dagushan Iron Mine combines its own characteristics, ind makes overall plans and takes all factors into consideration to stabilize the yield ndicator of different production stages. Through making scientific and reasonable excavation plans and adopting effective measures to increase the visible ore reserves, hereby to expands mining excavation in the northwest slide, which is the second hase of mining area. with the development of excavation, the connection problems of he two mining areas are more and more important. It hardly becomes true that join he first and second mining stages at-222 together. By the end of 2016, comparing the schemes, the excavation of steep-wall mining has some potential problems, however, ut during the period of connection and transition, it can remit the pressure and cost of stripping rocks effectively. Meanwhile, it can balance stripping ratio, make sure to keep quite separate of mining horizontal during the connection period. So it can not only take full advantage of the mining area, but also reduce the interaction of production, increase rocks, the maximum amount of excavation in the second mining stage. through the Dagushan ore output index to maintain a stable and effective with the strengthening of the various production processes, to ensure the completion of a smooth transition in two mining area and extablished index. |