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福克斯(FOX)矿于1966年开始开发,1970年投入生产,采用深孔分段空场法事后水力充填的采矿方法。在这期间,为使矿柱回采获得成功和具有最小的贫化,对合适的充填型式按岩石力学研究协会提供的,控制和改变生产作业的资料,进行了大量的试验。矿山采用1:30的水泥尾矿比的充填料。为了减少充填费用,加添了露天开采的砾岩和坑内开拓的廢石。在矿柱回采前后,凭经验和用多层锚定伸长仪广泛地监测围岩的应力情况,以决定采用非胶结充填代替胶结充填。並于1976年结合矿柱回采的矿块尺寸,回采顺序和爆破技术方面的一些变化,实现了这一改变。到目前为止,矿山已采出和充填了22个矿房和10个间柱,回收率达85—90％而贫化也最小。这编论文描述了充填系统的規则,试验和设计情况,对矿山七年生产当中所获得的经验作出了评价。
The FOX mine started its development in 1966 and was put into production in 1970, using a deep hole sub-field method for post-hydraulic mining. During this period, a large number of tests were conducted on the suitability of filling patterns to control and alter production operations provided by the Society for Rock Mechanics Research in order to achieve pillared recovery with minimal depletion. Mine 1:30 cement tailings than the filling material. In order to reduce the filling costs, added open-pit rock and open pit mining waste rock. Before and after mining the pillars, the stress conditions of the surrounding rock were extensively monitored by experience and using multi-layer anchoring extensometer to decide to adopt non-cementing instead of cementing. This change was achieved in 1976 in conjunction with some changes in the size of plutons recovered from the pillars, the sequence of the recovery and blasting techniques. So far, the mine has been produced and filled 22 mines and 10 columns, the recovery rate of 85-90% and the least depleted. This editorial describes the rules, tests, and design of filling systems and assesses the experience gained during the seven-year mine production.