TIME-SHARING REINFORCEMENT SUPPORT METHOD FOR FILLING ROOF CUTTING BLOCK ROADWAY WITHOUT COAL PILLARS AND ENTRY RETAINING

This invention aims at providing a time-sharing reinforcement support method for filling roof cutting block roadway without coal pillars and entry retaining and leaving the roadway, so as to solve the problems existing in the prior art. The invention discloses some technical effects. According to the observation law of ground pressure in adjacent working faces, combined with the principle of gob-side entry retaining support, in order to ensure the bearing capacity of surrounding rock of roadway protection as much as possible, it is necessary to take temporary strengthening support measures for the dynamic pressure affected section, and comprehensively determine the dynamic pressure affected zone: the advance pressure affected section is 20 m in front of the coal wall of the working face, and the periodic weighting exposed section is 60 m behind the working face; the invention adopts roadway basic support, dynamic pressure reinforcement temporary support and entry retaining reinforcement support, which effectively enhances the bearing stability of the roadway and reduces the damage of mining dynamic pressure to the roadway.