One time blasting of deep and medium holes was applied for the cut through raise and smooth surface blasting was used for the stope periphery and upper wall to ensure the stope safety.

 
  • 采場(chǎng)切割井用中深孔一次爆破技術(shù),采場(chǎng)周邊及上盤(pán)則采用光面爆破技術(shù),確保采場(chǎng)穩定。
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