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回采矿柱是一项技术复杂,安全条件差,贫损较大的采矿作业。特别是矿柱比重较大的采矿方法,合理选择矿柱回采方案对有效的开采矿床具有十分重要的意义。铜官山铜矿原用水平分层充填法回采矿房,矿柱未作具体方案设计,只提了一句分层崩落法回采,使我们碰到不少问题。在矿党委领导下,三结合试验小组和广大工人、干部和技术人员共同努力,通过多次试验和总结,试验成功了顶底柱间柱一次回采分段崩落法方案,逐年推广使用,并取得了较好的效果。
Back to the mining pillar is a technology complex, poor security conditions, loss of larger mining operations. In particular, the larger proportion of ore pillars mining methods, a reasonable choice of pillars recovery program for the effective mining deposits is of great significance. The Tongguan Mountain Copper Mine originally used the horizontal stratification filling method to recover the mining house and the ore pillar did not make a specific plan design, only mentioning a subsidence caving method so that we encountered many problems. Under the leadership of the Party Committee of the mine, the three combined test groups and the vast numbers of workers, cadres and technicians worked together to successfully test the first sub-caving sub-caving method through repeated experiments and summing-ups and experiments, which were promoted and used year by year. A better effect.