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在充填采矿法中,使用最早的是干式充填法。由于这种采矿法劳动强度大,工序复杂,采场作业周期长,采矿强度和工效低,经济效果不好,故在五十年代前后,国内外应用充填法的比重曾大为缩减。但充填采矿法亦有不可忽视的优点,如矿损贫化低,能防止或减缓地表塌陷,这在某些特定条件下,是其它所谓高效率采矿方法无法比拟的。因此,从六十年代后期以来,随着充填、回
In the filling mining law, the earliest is the dry filling method. As a result of this mining law labor-intensive, complex processes, stope operation cycle is long, mining intensity and efficiency is low, the economic effect is not good, so before and after the fifties, the proportion of domestic and international application of filling method has greatly reduced. However, there are also undeniable advantages of the Filling and Mining Law, such as the low depletion of mines to prevent or slow down the subsidence of the earth’s surface, which is unmatched by other so-called high-efficiency mining methods under certain conditions. Therefore, since the late 1960s, with filling, back