Stirring pile section splicing structure for geotechnical engineering construction

The utility model discloses a mixing pile section splicing structure for geotechnical engineering construction, and particularly relates to the technical field of mixing piles, which comprises a drill rod section to be spliced, a splicing device connected with a fixed foundation and a spliced drill rod section, and the bottom end of the drill rod section to be spliced is fixedly connected with a threaded connector. A threaded hole matched with the threaded connector is formed in the center of the top end of the spliced drill rod section, and the splicing device comprises an outer frame, six threaded nails and two clamping assemblies. A bottom plate is arranged in an outer frame of the stirring pile section splicing structure for geotechnical engineering construction in an up-down sliding mode, a longitudinal adjusting oil cylinder is connected between a top plate and the bottom plate, a first through hole and a second through hole are formed in the top plate and the bottom plate, a drill rod section to be spl