Soft soil layer foundation structure

The utility model discloses a soft soil layer foundation structure which comprises a soil layer structure, the soil layer structure is composed of a soft soil layer and a gravel layer from top to bottom, a plurality of foundation pillar structures are fixedly arranged in the soil layer structure in an inserted mode, each foundation pillar structure comprises a main pillar, a cavity is formed in each main pillar, and the cavity is communicated with the corresponding cavity. A plurality of slurry discharging openings are formed in the position, located on one side of the gravel layer, of the lower end of the main column, a concrete layer is fixedly arranged at the lower end in the cavity, a filling column is arranged at the position, located at the upper end of the concrete layer, in the cavity, vertical plates are fixedly arranged on the two sides of the upper end of the main column, and fixing plates are fixedly arranged on the two sides of the lower end of each vertical plate; supporting structures are arran