【摘要】 锚杆钻孔所遇岩层种类较多 ,合理地选择锚杆钻头类型有利于提高综合效益。本文介绍了金刚石锚杆钻头的类型、特点及选择方法 ,并给出了使用金刚石锚杆钻头的注意事项。更多还原

【Abstract】 There are many kinds of strata in roof bolt hole.Proper using and choosing are available for increasing comprehensive benefit.In this paper,the authors introduce the kinds and characteristics of roof bolt diamond bits,and using and choosing methods.They put forward points for attention of using roof bolt diamond bits.更多还原