Water hazard prevention and control technology for aquifers of Luohe formation in Yadian Coal Mine
During the mining process of Yadian coal mine,aquifer conditions and fracture development have a complicated effect on the water inrush and coal seam mining,and the mining activity may cause the abrupt increase of water inrush in the aquifers of Luohe formation,thus the mining activity is restricted.In response to the main problems in mining,such as the uneven water abundance of aquifers,the high development height of water conducting fracture zones,and the tendency to form pulse water inrush and goaf water accumulation,it is proposed to adopt technical measures such as layered monitoring technology for the water level of the Luohe Formation aquifer,prediction technology for water inflow,comprehensive preven-tion and control technology for aquifer water hazards,optimization of mining parameters on the working face,and optimization of mine drainage system to actively prevent and control the water hazards of the thick Luohe Formation aquifer.The estab-lishment of this technical system is of great significance for ensuring the safety of water prevention and control in coal seam mining under the thick aquifer of Yadian Coal Mine.
layered monitoringwater prevention and control in goafwater inflowfault treatmentdrainage system optimiza-tion