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为了提高矿床开采的回采率,并有效地、尺可能地降低大量贫化,一方面应采用合理的采矿方法;另一方面需要有良好的矿柱回采方法和顺序。矿柱矿量一般佔整个开采矿床矿量的25～50％。所以研究矿柱间采的方法是目前我国采矿工业的重要课题。东北区的一些有色金属矿山对矿柱同采方面及矿柱回采的及时性与合理性都没有引起应有的重视。因而,使矿柱回采工作造成困难,在安全上受到很大的威胁。某矿在近二年来,根据地质特点,广泛地采用了
In order to increase the recovery rate of the ore deposits and to effectively reduce the large amount of depletion, reasonable mining methods should be adopted on the one hand and good pillar recovery methods and sequences are required on the other hand. Pillar ore generally accounts for 25 ~ 50% of the total ore deposits. Therefore, the method of mining pillar between mining is an important issue in China’s mining industry. Some non-ferrous metal mines in northeast China have not paid due attention to the timeliness and rationality of ore pillar mining and pillar mining. As a result, it is difficult to mine the pillar mining and pose a great threat to safety. A mine in the past two years, according to geological features, widely used