Dividing wall anchoring type supporting structure and construction method thereof

The invention discloses a dividing wall anchoring type supporting structure and a construction method thereof. The supporting structure is used for supporting a fill slope body and comprises a cast-in-place anchor plate, anchor rods and a counterfort type retaining wall, the counterfort type retaining wall comprises a bottom plate, soil retaining vertical plates and a plurality of counterforts arranged in parallel, and the bottoms of the counterforts and the bottoms of the vertical plates are vertically poured on the bottom plate; one side face of each counterfort is tightly attached to one side face of the corresponding vertical plate, and the space between every two adjacent counterforts is filled with the fill slope body; and the cast-in-place anchor plate is arranged in the fill slopebody, the cast-in-place anchor plate is connected with one ends of the anchor rods, and the other ends of the anchor rod pass through the space between two adjacent counterforts, penetrate through thevertical plates and then