It is pointed out that main factors of water inrush of face are fracture developing degree and watery of sandstone aquifer,thickness of coal seam,fault and aquifuge thickness between the th coal seam and aquifer etc. .
It is pointed out that main factors of water inrush of face are fracture developing degree and watery of sandstone aquifer,thickness of coal seam,fault and aquifuge thickness between the th coal seam and aquifer etc. .
指出了砂岩含水层的裂隙发育程度和富水性强弱、煤层的厚度、断层的作用以及煤与含水层之间隔水层厚度的大小等,是影响工作面涌水的主要因素。