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鉴于我国金属及非金属矿山用无底柱或有底部结构分段崩落法开采厚矿体的比重很大,因此,本文看重讨论这两种方法的采矿顺序问题。所谓顺序问题,实质上是指在垂直走向和沿走向方向的开采顺序。 对于无底柱分段崩落法,当矿体水平厚度大于10米时,用一条沿走向的进路来开采不能满足要求,绝大多数矿山都采用垂直走向布置进路的方法。于是就有由底盘向顶盘开采,还是由顶而底的顺序问题。
In view of the large proportion of thick ore bodies mined by non-pillar or subsoil caving method in China’s metal and non-metal mines, this paper focuses on the mining sequence of these two methods. The so-called order of problems, in essence, refers to the vertical direction and along the direction of the mining order. For the subsea caving method, when the horizontal thickness of the ore body is more than 10 meters, the mining with one along the way can not meet the requirements. Most of the mines adopt the method of vertical arrangement of the approach. So there is from the chassis to the top mining, or by the top and bottom of the order problem.