All of these provide a basically technological support to the determination of safety coal-rock pillar types and the reasonable height of coal-rock pillar to avoid groundwater rush during first level mining.

• 经数值模拟计算的结果和沉积相与富水性之间的关系的综合分析，将区内“四含”分为强富水区、中等富水区和弱富水区三种类型，为煤矿一阶段水平开采前对于确定煤岩柱类型和留设合理的煤岩柱高度提供了技术支撑。