Defective cast-in-place pile middle part retaining wall chiseling structure

The utility model relates to the technical field of cast-in-place piles, and discloses a structure for chiseling away a retaining wall in the middle of a defective cast-in-place pile, which is characterized in that the defective cast-in-place pile is provided with a concrete cast-in-place pile body, an original reinforcement cage is arranged in the pile body, a plurality of meshing holes are formed in the pile body, and the meshing holes are sequentially arranged in a meshing and surrounding mode. An annular groove located in an area surrounded by the original reinforcement cage is formed; the annular groove divides the pile body into a pile ring and a pile core, and the original reinforcement cage is located in the pile ring; according to the structure for chiseling away the retaining wall in the middle of the defective cast-in-place pile, in the process of chiseling away the pile core, the pile ring serves as the retaining wall, the formed pile ring serves as the retaining wall no matter the defect position