This paper analysizes the acoustic emission (AE) law before and after the bulk blasting of the stope in Yunnan Dayao Copper Mine, and monitors the stope stability after the bulk blasting.
本文分析研究了云南大姚铜矿大空区采场大爆破前后的声发射规律；并对大爆破后采场的稳定性进行了安全监测。
After the blasting, the block must be moderate, the bulk rate must be within 7%, can meet the shipment operating machinery, can requirement for roadbed filler.
爆破后的块体要适中，大块率控制在7%以内，能满足机械装运作业，能适合路基填料要求。
After the blasting, the block must be moderate, the bulk rate must be within 7%, can meet the shipment operating machinery, can requirement for roadbed filler.
爆破后的块体要适中，大块率控制在7%以内，能满足机械装运作业，能适合路基填料要求。
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