Research on Floor Water Source Discrimination and Channel Formation Mechanism in Confined Area in Buliangou Mine
RONG Huren
BAI Haibo
WANG Hailong
WANG Zihe
WANG Zhansheng
ZHANG Bo
CAO Haiyun
Abstract：Aiming at the phenomenon of the delayed water inrush from the floor of F6204 roadway, change characteristics of water discharge and quality with time were analyzed, the floor failure depth caused by mining was detected and the formation mechanism of floor water inrush channel was revealed. The study results showed that the floor water inrush presented a gradual process of water seepage-sharp increase of water inrush-weakening of water inrush with the time extension, the water quality changed from the sandstone water to sandstone-gob mixing water with the time extension; the water inrush channels were composed of the vertical channels formed by the floor disturbance of F6203 working face and F6204 roadway and the horizontal channels in the sandstone pore-fissure aquifer; the delayed and phased water inrush led by the blocking effect of the original fissure water in the sandstone aquifer on the water inrush in the gob were caused by the space location of the aquifer distribution, the sandstone fissure water was discharged first, then the gob water and partial sandstone pore water, the change of the gob water quantity and pressure was the main reason of the water inrush change.
Keywords：coal mine water hazarddelayed water inrushwater source discriminationdepth of floor disturbancewater inrush channel
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 37-39,49 )