摘要
介绍一种改进型的边坡缓冲孔爆破工艺。采用分段间隔式装药结构 ,且无超深 ;孔距约为正常生产炮孔孔距的 0 7倍 ,并以 2～ 3个孔为一组滞后于相邻前排孔 5 0～ 10 0ms起爆。实测数据表明 ,该工艺能减少后冲破坏 。
This paper describes a modified buffer blasting technique for slopes. The technique is characterized by divided and interval charge and no superdeep blast hole. Spacing of the blast hole used in this technique is seven tenths that of normal blast holes and a group of 2～3 blast holes are initiated 50～100 ms later than the front raw of blast holes adjacent to them. Actually measuled data show that the technique can reduce backlash damage, achieving vibration reduction near blast area.
出处
《矿冶工程》
EI
CAS
CSCD
北大核心
2000年第2期1-2,7,共3页
Mining and Metallurgical Engineering
基金
北京市青年科学基金资助项目
