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有底柱崩落法是属于以崩落围岩来实现地压管理的采矿方法。按矿块划分的高度大小,又分为有底柱分段崩落法和有底柱阶段崩落法两大类。该采矿法具有生产效率高、作业安全、使用灵活等优点。从六十年代以来,在我国地下金属矿山(尤其是有色金属矿山)已获得较广泛的使用。1961年分段崩落和阶段崩落法的产量已分别占地下开采总量的6.48％和5.6％。1971年增至15.5％和8.8％。至1978年止,仅就分段崩落法的产量已占地下开采总量的27.3％,仅次于留矿法,在地下采矿方法中占有特殊的地位。
Bottom-column caving method belongs to the mining method of underground pressure management by caving surrounding rock. Divided by the height of the block size, and is divided into bottomed column caving method and bottomed column caving two categories. The mining law has the advantages of high production efficiency, safe operation, flexible use and so on. Since the 1960s, underground metal mines (especially non-ferrous metal mines) in our country have been widely used. The production of the Caving and Caving Cuts in 1961 respectively accounted for 6.48% and 5.6% of the total underground mining. 1971 to 15.5% and 8.8%. As of 1978, only the production of the subsided caving method has accounted for 27.3% of the total underground mining production, second only to the retention method, which holds a special position in underground mining methods.