This paper introduces the floor detection at 103 working face in Wolonghu Coal Mine by the parallel electrical survey system.
介绍应用并行电法采集系统，在卧龙湖矿井103工作面进行底板探测。
The water-inrush from floor inundates Working face 51101W in Liangzhuang coal mine, Xinwen Mining Group.
新汶矿业集团良庄煤矿51101W工作面因底板突水导致工作面被淹。
The results show that floor relief stress of 762 working face exhibits a nearly linear decrease, and forms relief zone in the headgate of 962 working face.
结果表明：762工作面开采对底板卸压应力基本是以线性降低，在 962工作面下平巷形成卸压；
The floor roadway should be located out of the abutment stress zone when protection coal pillar is retained, or the working face should be pushed away for enough distance under overhead mining.
留设保护煤柱时，底板岩巷应位于集中应力区的外侧或跨采时工作面应推过足够距离，使巷道靠近采空区应力恢复区的下方。
The floor roadway should be located out of the abutment stress zone when protection coal pillar is retained, or the working face should be pushed away for enough distance under overhead mining.
留设保护煤柱时，底板岩巷应位于集中应力区的外侧或跨采时工作面应推过足够距离，使巷道靠近采空区应力恢复区的下方。
应用推荐