我国目前露天矿山绝大部分均采用缓帮开采,很少采用陡帮开采。但随着矿山技术装备水平的提高,管理工作的加强,生产不断发展,陡工作帮开采将会逐步广泛应用。陡帮开采增加工作帮坡面角,主要采取组合台阶方法(附图)。组合台阶个数的多少,取决于计划推进部位的快慢,产量的多少,设备装备 At present, most open-pit mines in our country use slow-relief mining and seldom steep-cut mining. However, with the improvement of mine technology and equipment level, the strengthening of management work and the continuous development of production, the steep work will help the mining gradually and widely. Steep mining to help increase the slope to help slope angle, the main method to take the combination of steps (with photos). How many combinations of steps, depending on the speed of the site to promote the project, the amount of output, equipment and equipment