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充填在地下矿山开采起着主要作用。调查了安大略70％的矿山,其日充填量达42000吨,主要是支护采空区、作为采场回采期间的支撑面维持相邻矿柱的回采和减少地表堆放尾矿的设施。图1简要说明了几种主要充填形式的使用率。
Filling in underground mining plays a major role. 70% of Ontario's mines were surveyed and their daily filling capacity was 42,000 tons, mainly supporting gob, as a supporting surface during the mining of stopes to maintain the recovery of adjacent pillars and to reduce the facilities for surface dumping of tailings. Figure 1 briefly illustrates the usage of several major forms of fill.