A_4012工作面高位钻孔抽采实践应用

Practice and application of high-level borehole drainage in A_4012 working face

通过分析确定A_4012工作面采空区垂直"三带"的分布范围,并结合ZYW-3200S钻机的功能特性,对A_4012工作面高位钻孔抽采进行优化设计。根据现场的实践应用,将高位钻场的距离由40 m提高到60 m,并保证了良好的抽采效果。

This paper analyzed and determined the distribution range of vertical three belt in the goaf of A4012 working face,and combined with the function characteristics of ZYW-3200S drilling rig,the design of high-level borehole extraction on A4012 working face was optimized.According to the practical application in the field,the distance of the high drilling field was increased from 40m to 60m,and good gas drainage effect was guaranteed.