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一、关于最佳适用条件 每一种被推广应用的采矿方法,都有它本身的结构和工艺特点,及其固有的优缺点和最佳适用条件。在最佳适用条件下,该采矿法可以获得最佳技术经济效果。 无底柱分段崩落采矿法的主要特点是:在崩落围岩复盖下的巷道端部出矿;凿岩爆破和出矿工作在同一分段水平巷道内顺序作业;一次爆破1～2排扇形炮孔,用深孔崩矿但一次崩矿量少,装矿点经常变动。 这种采矿方法的优点是工人在水平进路巷道中作业,工作安全;利用进路采矿,
First, on the best conditions for application Each is the promotion of the use of mining methods, it has its own structure and process characteristics, and its inherent advantages and disadvantages and the best conditions for application. Under the best possible conditions, the mining method can achieve the best technical and economic results. The main features of subsea caving method are as follows: out of oreway at the end of the roadway covered by caving rock; drilling and blasting work in sequence within the same sub-level roadway; blasting once or twice Fan-shaped hole, with deep-hole collapse mine but a small amount of ore collapse, loading often changes. The advantage of this mining method is that workers work safely and safely in roadway with horizontal approach; using the approach of mining,