煤矿定向钻机长距离疏放顶板水技术研究及应用

Research and Application of Long-distance Drainage Technology of Roof Water by Directional Drilling Rig in Coal Mine

在查明矿井开采区域顶板富水情况的基础上,为了减少因疏放顶板水对生产进度的影响,并提高疏放水的安全性,特在现有定向钻机施工长距离钻孔的基础上,结合矿井总体预防(瞬变电磁勘探)项目成果报告、掘进头前方区域瞬变电磁报告、前方煤层走势探测成果,研究了一套定层位、定点的长距离疏放顶板水技术。与普通钻孔对比,定向钻探疏放水距离长,更高效、更安全;定层、定点钻进,精度高,盲区少,为矿井安全生产提供保障。

On the basis of finding out the water-rich situation of the roof in the mining area,in order to reduce the influence of roof water drainage on the production schedule and improve the safety of drainage,this paper studies a set of long-distance drainage technology of roof water at fixed horizon and fixed point,based on the long-distance drilling of the existing directional drilling rig,combined with the results report of the overall mine prevention(transient electromagnetic exploration)project,the transient electromagnetic report of the area in front of the heading and the detection results of the coal seam trend in front.Compared with ordinary drilling,directional drilling has a long drainage distance,which is more efficient and safer.Fixed-bed and fixed-point drilling has high precision and few blind spots,which can provide guarantee for mine safety production.