超长距探放水技术在留小煤柱掘进中的应用

Application of water detection and drainage technology for long distance in the tunneling with small coal pillar

介绍了河北中达集团有限责任公司燕家河煤矿依据采空区积水位置和煤层赋存条件,在8215皮带顺槽最低点布置探放水孔,使超长距探放水技术在留小煤柱掘井中得到应用,并达到预期的效果。

Based on the position of water in gob and coal seam conditions,the water detection and drainage drilling holes are arranged in the lowest point of 8215 belt conveyor roadway.The water detection and drainage technology for long distance was applied successfully and achieved the desired effect.