露天金属矿山高台阶陡帮开采的新概念及连续运输工艺

The New Conception and Continuous Transportation Technics of Open - pit Mine＇s Exploitation of High Bench Cliffs

在露天矿一定的剥离境界或封闭条件下，大幅度增加台阶高度可以实现陡帮开采和形成更大的采场空间，从而有利于矿山平衡剥采比，增加备采储量，提高矿山开采强度和生产能力。为突破基于常规工艺和设备配套的设计理念，推荐采用束状阶段深孔或在巷道中采用大直径深孔的方法实现露天开采的高台阶穿爆作业；采用大斗容索铲下挖作业实现自工作面开始的索斗铲-移动式旋回破碎机-带式输送机的连续运输工艺，从而形成有利于提高露天开采设计总体技术经济效果的新的工艺技术系统。

Under the determinate boundary or close condition increasing the height of steps can realize steep slope mining and engender more much stope space, which will be propitious to balance stripping ratio, increase storage for exploiting and improve mining intensity and production capacity. In order to break through the traditional technology and the conception of equipment design, suggest to use bunchy phase deep hole or big diameter deep hole in laneway to realize the exploding of high step on opencast working; Digging with big contain forklift to realize the continuous transportation of dragline - mobile convolution crusher - belt transportation machine, therefore form a new technology system that be propitious to increase collectivity technique and economic benefit.