降低砼人工骨料开采大块率爆破试验研究

Experimental research into blasting on reducing oversized blocks in artificial aggregate preparation

从理论上提出了降低隔河岩水利枢纽砼人工骨料开采大块率的小抵抗 线深孔微差爆破技术．通过现场试验确定了合理的钻爆参数和微差起爆方 式，给出了相应的技术措施．

Small burden deep hole millisecond blasting technique for the reduction of oversized blocks in artificial aggregate preparation in Geheyan Hydraulic Project (Hubei Prov., PRC) is advanced theoretically. Through four full-scale-in-situs experiments, applicable drilling and blasting parameters and suitable millisecond detonation method are found out. Appropriate technical measures are proposed correspondingly.