为了成倍的提高井下开采矿山的生产能力,以满足高速度发展冶金工业的需要,在国內有色和黑色金屬矿山的厚及中厚以上的矿床条件下,将日益广泛的采用深孔或药室进行大量崩矿的高生产率的开采方法:留矿法、小中段平(横)巷崩矿的空场法(矿房法)、阶段强制崩落法,以及其他矿房用深孔崩矿,而矿柱在矿房充填后用崩落法回采的联合法等等。在 In order to double the production capacity of underground mining mines in order to meet the high-speed development of the needs of the metallurgical industry in the domestic non-ferrous and non-ferrous metal mining thick and thick deposits, the increasingly widespread use of deep holes or medicine Room for a large number of colliery high productivity mining methods: retention method, small flat (horizontal) alley collapse of the open field method (mining method), stage forced caving method, and other mining with deep-hole collapse, The pillars in the mining after filling with caving method of mining and so on. in