【摘要】 通过中深孔小补偿空间挤压爆破的研究,找出大红山铜矿一期大块产出的原因,改进爆破工艺,降低大块率,提高爆破质量。更多还原

【Abstract】 Based on the research on colooision blasting of small compensation space,the cause of boulder t the first stage of the first stage of Dahongshan Copper Mine is found out,so as to take measures for improve the blast technique,cut down the boulder frequency and improve the quality of blasting.更多还原