坚硬顶板超前预爆破技术研究

The analysis about the effect of the blasting technology which was used in hard roof before mining

新疆焦煤集团2130分矿25112综放面顶板坚硬,不易垮落,给安全生产带来严重隐患。为此该矿采取了超前预爆破技术,取得了良好的工程效果,形成了独具特色的采煤工艺。特将部分技术经验及实施效果予以介绍。

The 25112 mining face of Xinjiang Tar coal Group has the characteristics that＇s hard roof which did not easy to fall ,all of these give my pit a lot of Serious potential safety hazards.As a result of the hard roof we have done the pretreatment which is deep-hole burst,and the messure has got a good effect. This paper addresses some of Measureses to let the hard roof fall quickly, which could provide some references for who have the Similar problems.