煤矿顶板弱化处理研究

摘要

In order to make the safe and efifcient production of working face, using the method of advanced deep hole pre-splitting blasting technology with deep hole peep, dealing with hard roof, changing the roof rock mass physical and mechanical properties, damaging the roof integrity, achieve the effect of pre-splitting. The ifeld tests in 15201 working face of Yongtai coal achieved good results.%为了使回采工作面能够安全、高效地生产，运用超前深孔预裂爆破的方法结合深孔窥视技术，对坚硬顶板进行处理，改变顶板岩体的物理力学性质，预先破坏顶板的完整性，从而达到预裂效果。在永泰煤业有限公司15201工作面进行了现场试验，取得了较好的成果。