为安全开采下组煤 ,详细分析了矿区奥灰水文地质条件。以研究煤层底板突水因素、突水机理为切入点 ,利用地理信息系统技术 ,对下组煤开采之前奥灰突水的危险性进行了预测 ,即可分为 3个区 (安全区、可能突水区、突水区 ) ,同时提出下组煤先期开采的范围为 - 2 1 0 m水平以上范围 In order to safely mine the next group of coal, the hydrogeological conditions of the ores in the mining area are analyzed in detail. Based on the study of water inrush factors and water inrush mechanism in coal seam floor and the prediction of the danger of water pollution in the lower coal seam by using geographic information system (GIS), we can divide it into 3 zones (safe zone, Water inrush, water inrush), at the same time it is suggested that the coal mining in the next group should have a range of above -220 m