黔中福泉地区英坪磷矿矿床充水因素研究

Research on water filling factors of Yingping phosphate deposit in Fuquan area, central Guizhou

磷矿是重要战略勘查矿产资源。英坪磷矿所属瓮(安)福(泉)磷矿区为黔中地区的重要矿集区,矿山采空区地下水储量大、静水压力强,可能通过大裂隙对矿坑突水。通过综合研究分析,查明矿坑的充水因素主要为顶底板灯影组、陡山沱组含水层对矿坑直接充水,划分突水带对英坪磷矿安全开采及邻区矿山水害治理具有指导意义。

Phosphate rock is an important strategic exploration mineral resource. Weng(An) Fu(Quan) phosphate mine area where Yingping phosphate mine is located is an important ore concentration area in Central Guizhou. The underground water reserves in the mined out area of the mine are large and the hydrostatic pressure is strong, which may cause water inrush into the pit through large cracks. Through comprehensive research and analysis, it is found out that the water filling factors of the pit are mainly the direct water filling of the pit by the aquifer of Dengying Formation and Doushantuo Formation at the roof and floor. The division of water inrush zone is of guiding significance for the safe mining of Yingping phosphate mine and the control of water disasters in adjacent mines.