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通过优化深孔松动爆破参数,采用双回路闭合孔内外延期非电微差起爆网路,严格控制同段起爆药量,采取有效的安全技术措施,成功地进行山体路堑爆破开挖。
By optimizing the parameters of deep hole loose blasting, the two-loop closed-hole closed-loop non-electric differential detonation network with internal and external delay is adopted to strictly control the amount of initiating charge in the same section and effective safety measures are taken to successfully excavate the mountain road cutting blasting.