The shrinkage method and the cut wall filling method were used to mine the steep orebody with a high grade in Dashuiqing gold mine, which resuled in greater dilution and loss as well as the unsafe.

 
  • 大水清金礦曾用留礦法、削壁充填法開(kāi)采高品位急傾斜礦體,貧化、損失率較大,且存在不安全因素。
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