某煤矿10＃煤层底板奥灰突水防治探讨

ter is rich,which belongs to strong runoff zone.The average distance from No.10 coal seam bottom to ordo-vician limestone interface is only 34.81 m,the ordovician limestone karst water es the main source of water in-rush from coal seam floor.Introduces the several channels of floor water inrush.Analyzes the several correspondingwater control measures of floor water inrush.Finally adopts the unite water control measure which are decrease themining face inclined long,the aquiclude of water resisting rock section reinforcement,aquifer transformation,groundcurtain grouting closure and hydrophobic buck in field.Eventually achieves the safe mining of coal seam under thepressure.Key words Floor water inrush;Aquiclude;Hydrophobic buck;Grouting for water blocking942015 年第 2 期朱晓明:某煤矿 10#煤层底板奥灰突水防治探讨