• Because of these problems such as unstable ore bodies, moderately-stable wall rock, large work-out area, the design proposal of mining these ore bodies by filling-up method is presented.

    针对其矿体不稳固、围岩中等稳固,以及存在较大采空区,矿体完整性遭破坏的情况,提出了上向进路充填法开采的设计方案。

    youdao

  • Because of these problems such as unstable ore bodies, moderately-stable wall rock, large work-out area, the design proposal of mining these ore bodies by filling-up method is presented.

    针对其矿体不稳固、围岩中等稳固,以及存在较大采空区,矿体完整性遭破坏的情况,提出了上向进路充填法开采的设计方案。

    youdao

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