易碎岩石大粒径石料开采爆破关键参数研究  

Research on Key Blasting Parameters of Large Particle Size Stone in Fragile Rocks

作　　者：谢兴博[1] 王希之[1] 谭雪刚[1] 谭灵[1] 

机构地区：[1]解放军理工大学工程兵工程学院,南京210007

出　　处：《爆破》2012年第2期57-59,共3页Blasting

摘　　要：随着外海建港项目的增多,在易碎岩石中集中爆破生产大粒径规格石料成为一个难题。通过分析应力波和爆炸气体对裂隙走向和长度的影响,提出了增大最小抵抗线和填塞长度、减小孔间距的单排孔开采方案,以及关键参数的计算公式,并多次得到工程实践的验证。With the increase of construction projects in offshore sea port, producing large particle size dimension stone in fragile rocks by blasting technology is a difficult problem. The influence of stress wave and explosive gas on fracture strike and length are discussed. A single row hole mining method of increasing minimum burden and explo- sive charging length, decreaseing boreholes space were put forword, it also gives some calculating formulas of key blasting parameter was given to,offer reference for future similar projects.

关 键 词：易碎岩石 大粒径 爆破参数 

分 类 号：TD235.3[矿业工程—矿井建设]