9216工作面顶板探放水经验浅谈

Experience of Roof Drainage and Drainage in 9216 Working Face

分析了金达煤业公司9216综采工作面顶板上覆煤层在地质资料不详细的情况下对煤层古空巷的积水探测,重点介绍利用瞬变电磁法对顶板上覆情况的勘测,查明低电阻异常区积水区域,通过从9216综采工作面运输巷顶板上覆岩层不同位置、方位、角度的钻孔钻探,查明了顶板上覆巷道的积水,对矿井隐蔽致灾因素的普查,提供了可靠的保障。为矿井减少工作面废弃井筒、古巷道区域煤柱的留设,确保工作面资源储量40万吨未丢失,给集团公司和煤矿带来了巨大的经济和社会效益。

This paper mainly analyzes the JINDA coal company 9216 roof in fully mechanized working face of overlying coal seam in geo？logical data in detail of ancient Coal Seam Gob Water detection,focusing on by transient electromagnetic method exploration of the overly？ing the situation,identify the low resistivity anomaly area water area,through from 9216 conveying workface roadway roof strata of differ？ent position,orientation,the angle of the borehole drilling,found out the roof cover tunnel water,to mine hidden by a census of disas？ter factors,provide a reliable guarantee. For mine reduced working face abandoned shaft,ancient roadway area of coal pillar design and ensure resources reserves of 40 million tons were not affected by the loss,brings the enormous economic and social benefits to the group company and the coal mine.