Method and structure for treating bottom heaving of fully-mechanized mining face gate roadway

The invention discloses a method for treating bottom heaving of a fully-mechanized mining face gate roadway. The method includes the following steps that a top plate, a main edge and a subsidiary edge are reinforced and supported; before mining face back production, heaving removal is conducted on a bottom plate, and a precast concrete block is laid; after mining face back production, the precast concrete block is provided with externally-poured type dense monomers. The invention further discloses a structure for treating the bottom heaving of the fully-mechanized mining face gate roadway. The structure comprises a top plate edge support assembly and a bottom plate support assembly, wherein the top plate edge support assembly is used for reinforcing and supporting the top plate, the main edge and the subsidiary edge; the bottom plate support assembly comprises the precast concrete block which is laid on the bottom plate generated after heaving removal is conducted and the externally-poured type dense monomers