Pile casing rechecking auxiliary tool and rotary excavating pile casing positioning rechecking method

The invention discloses a pile casing re-checking auxiliary tool and a rotary excavating pile casing positioning re-checking method. The tool comprises a supporting net rack used for being placed at the upper end of a pile casing; the transparent indicator board is mounted on the supporting net rack, and concentric circle scale marks are arranged on the transparent indicator board; the pipe jacking structure comprises an axis pipe and a plurality of length-adjustable jacking assemblies, the axis pipe is connected to the bottom of the supporting net rack and arranged at the circle center of the concentric circle scale marks, and the multiple jacking assemblies are arranged in the circumferential direction of the axis pipe at intervals; the supporting assemblies are arranged in the radial direction of the concentric circle scale marks. According to the invention, the problems of large deviation of existing pile casing positioning conformance detection data and low re-checking efficiency are solved. 本发明公开了一种护筒复核