顶板高位裂隙钻孔终孔位置试验瓦斯抽采分析

Analysis of Gas Drainage and Extraction of the Final Hole Position of the Upper Roof of Fully Mechanized Working Face

通过确定4201综放工作面冒落带、裂隙带高度,采用5组钻孔试验顶板高位裂隙带终孔位置,对4201辅运顺槽顶板高位裂隙钻孔参数进行完善优化,使得抽采效果明显提高。

This paper through determining the 4201 mechanized working face caving zone and fractured zone height, using 5 group drilling test of roof high fracture belt end hole position, and optimize 4201 auxiliary transport along the tank roof high-level fissure drilling parameters, the drainage effect is improved obviously.