Room-pillar-like type coal mining method for filling near goafs through roof cutting

The invention discloses a room-pillar-like type coal mining method for filling near goafs through roof cutting. The direct roof initial caving pace L0 is obtained, and when footage of the coal miningprogress reaches one third of the initial caving pace L0, roof cutting is started from the position located behind a coal cutter by the distance of one basic unit; corresponding shot holes are formedin the roof cutting part of the corresponding basic unit, when the footage of the coal mining progress reaches two thirds of the initial caving pace L0, the roof cutting parts on the left side of thebasic unit are cut, and gangue produced at the three roof cutting parts are transferred to filling areas of the basic unit by mechanical equipment for filling; and the steps are repeatedly operated until coal mining of the coal mining area is completed. According to the room-pillar-like type coal mining method for filling the near goafs through roof cutting, the effect similar to that of room-pillar type coal mining is achieved finally, surface subsidence can be effectively controlled, and the sedimentation reduction effect is obvious; no external filling materials are required, only the costof the mechanical equipment is input at a time, and filling cost is reduced; and the room-pillar-like type coal mining method is not limited by slow solidification of paste materials, the supporting effect is achieved once filling is completed, and filling efficiency is high.