徐州矿区开采深度大，水文地质条件复杂，水害严重。主要突出水源为奥陶系含水层。突水原因主要有：底板隐伏陷落柱或断层导水；底（顶）板含水层与奥灰含水层对接；顶板冒落裂隙带导通断层对盘的奥灰含水层；奥灰水通过基岩隐伏露头侧向补给矿井。其防治对策为：引进先进技术手段，探查分析奥灰岩溶水发育规律；分区隔离开采，完善防排水系统；注浆封堵突水通道；排供结合，综合利用。 Xuzhou mining depth mining, hydrogeological conditions are complex, serious water damage. The main highlight is the Ordovician aquifer. Main reason of water inrush is: hidden subsidence column or fault aqueduct; bottom (top) plate aquifer is connected with Ordovician aquifers; roof caving fracture zone leads to faults orogenic ash aquifers; Rock hidden outcrops lateral replenishment of the mine. The prevention and treatment measures are as follows: the introduction of advanced technical means to explore or analyze the law of development of dissolved limestone water; partition isolation and mining, improve the drainage system; grouting block water inrush channel; for combination, comprehensive utilization.