Carbonization composite mixing pile process

The invention relates to the technical field of foundation soil reinforcement, and discloses a carbonization composite mixing pile process which comprises the following steps: step 1, selecting a position where a mixing pile needs to be arranged, and cleaning surface sundries and underground obstacles; secondly, distribution points of the stirring piles are arranged according to requirements, and specific coordinates of the stirring piles are measured; thirdly, the material conveying assembly and the three-shaft mixing pile machine body are moved to mixing pile distribution points; 4, cement paste, lime slurry and carbon dioxide are prepared through a material conveying assembly; fifthly, the first drill rod, the second drill rod, the third drill rod, the first drill bit and the second drill bit at the power head end of the three-shaft mixing pile machine body are used for sinking, and construction operation is conducted on the mixing pile; according to the process, lime is added to be mixed with cement and f