Foundation reinforcement construction method based on ancient building repair

The invention discloses a foundation reinforcement construction method based on ancient building repairing, and relates to the technical field of ancient building foundation reinforcement. In order to solve the problem that the external expansion range of grouting liquid is too large, the method specifically comprises the following steps that the center of an original pile body fixed to original foundation soil serves as a center point, and an edge sealing assembly is additionally arranged on the periphery of the original pile body; 2-8 grouting pipes are inserted into the original foundation soil within the wrapping range of the edge sealing assembly; preparing grouting liquid; grouting is conducted in the grouting pipe in a segmented mode, and foundation reinforcement construction is conducted; the edge sealing assembly and the grouting pipe are pulled out; a pile foundation is fixed at the bottom end of the original pile body; an original brick foundation is fixed at the bottom end of the pile foundation;