• The upward horizontal cut and fill stoping method and the measures for safe mining are recommended.

    推荐使用机械化上向水平分层充填采矿提出安全回采措施。

    youdao

  • This paper introduced a new method for it, ie continuous stoping of room and pillar in stages and to fill mined bed with falling roof by deep-hole blasting.

    本文提出了种矿矿柱阶段性连续回采,深孔放顶处理空区的采矿方法。

    youdao

  • The security of the stoping-cemented fill method is good and the rate of extraction is high. It has made the contribution for mine in technical progress and improving economic benefits.

    胶结充填采矿安全性回采矿山技术进步提高经济效益起到积极作用

    youdao

  • The security of the stoping-cemented fill method is good and the rate of extraction is high. It has made the contribution for mine in technical progress and improving economic benefits.

    胶结充填采矿安全性回采矿山技术进步提高经济效益起到积极作用

    youdao

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