Engineering foundation bad soil improvement structure

The utility model provides a poor soil improvement structure of an engineering foundation, relates to the technical field of constructional engineering, and aims to solve the problem of poor mixing sufficiency of improved soil chemicals and poor soil. The left end of a rack is connected to a mechanical vehicle, and a pressing roller is rotationally installed at the rear end of the rack. A turnover frame is rotatably mounted at the bottom end of the rack, a stirring component is mounted on the outer side of the rack, a driving gear is mounted at the bottom end of the stirring component, and a material conveying shaft sleeve is connected to the turnover frame; the stirring component is matched with the driving gear, so that the stirring blade shaft stirs the improved soil chemical agent, the mixing sufficiency of the improved soil chemical agent is improved, the overturning frame is matched with the pump body, and the improved soil chemical agent is conveyed into the construction land through the conveying shaf