深孔爆破预裂切缝技术的实践应用研究

Research on Practical Application of Deep Hole Blasting Pre-splitting and Slitting Technology

针对杜家沟煤业有限责任公司采煤工作面初采强制放顶施工,采用理论分析和工程类比的方法提出采煤工作面初采时采用深孔爆破预裂切缝技术进行强制放顶的方法,通过在2号煤层综采工作面现场实践,取得了良好效果,对于类似顶板条件采煤工作面强制放顶具有非常重要的指导意义。

In view of the forced caving construction in the initial mining of the coal mining face of Dujiagou Coal Industry Co.,Ltd.,this paper used the method of theoretical analysis and engineering analogy to put forward the method of forced roof caving with deep hole blasting pre-splitting and slitting technology in the initial mining of coal mining face.Through the field practice in the fully mechanized mining face of No.2 coal seam,it achieved good results,which had very important guiding significance for the forced caving of coal mining face with similar roof conditions.