Based on large mining deep mine deep coal seam and under-group coal seam mining influenced by ordovician limestone confined water threat situation and water keeping requirement in Hanxing mining area,regional advanced governance idea of ordovician limestone karst water with pressure mining water disaster governance and advanced initiative,regional governance,wholly transformation,mining with pressure guideline were put forward; Regional partition principle,management mode and suitable conditions,investigation and governance combined with new methods,advanced governance management procedures,floor block water proof capacity evaluation method and key technology governance and other supportive system were correspondingly gave. The whole set technology was put into study and application in Hanxing mining area,especially the ground multi-branch horizontal drilling key technology application research,which got excellent safe technology effect,innovated ordovician limestone karst water disaster governance in deep mining mines and under-group coal seam mining,mined out the coal resourced safely threatened by confined water and protected coal system basement ordovician limestone karst water environment.
Journal of China Coal Society
ordovician limestone karst water disaster
regional advanced governance technology
large mining deep mine
under-group coal seam mining
water environment protection