苏联的锡矿床主要是构造复杂、走向不定的急倾斜薄(3m 以内)矿脉,因而决定了广泛应用留矿法开采。而且分析表明,虽然留矿法的回采质量指标优于其它采矿法,但这种采矿法的劳动生产率增长潜力实际上已经挖尽。由于留矿法开采强度和劳动生产率均低以及受伤危险性大,要求最大限度地限制其应用。深孔落矿采矿法是可供选择的方法,而且分段落矿方案是最有发展前途的。可用深孔落矿法形成宽1.3～1.5m 的回采空间,在这种情况下炮孔直径不要超过从给定直径和质量的药包最优爆破条件获得 The tin deposits in the Soviet Union are mainly composed of complex and undulating steep inclined thin (within 3m) veins, thus determining the widespread application of the ore retention method. Moreover, the analysis shows that although the mining quality indicator of the retention method is superior to other mining methods, the potential for productivity growth of this mining method has actually been depleted. Due to the low strength and labor productivity of the ore retention method and the high risk of injury, its application is required to be limited to the maximum. Deep hole mining method is an alternative method, and sub-ore mining program is the most promising. Available deep hole mining method to form a wide 1.3 ~ 1.5m back to the mining space, in this case the diameter of the hole should not exceed the diameter and quality of a given packet of the optimal blasting conditions obtained