Concrete pile used for precast pile foundation structure and provided with drum piece and root pile

A concrete pile used for a precast pile foundation structure and provided with round drum pieces and root piles belongs to the field of buildings, one or more precast round drum pieces are integrally formed in a single reinforced concrete pile in a casting mode, precast connecting pieces or middle communicating pipes are arranged above or/and below the precast round drum pieces, a center hole is formed in the reinforced concrete pile, and the root piles are arranged in the center hole. At least two cement paste pouring pipes are arranged in the center hole and connected to the inner sides of the multiple pressure rupture discs and the grout filling space of the pressure-resistant steel sleeve through the nearest multiple middle communicating pipes and branch pipes, the lower end of the bottommost reinforced concrete pile is provided with an end part through an end plate, and the concrete piles can prevent the composite foundation concrete root piles from sinking. The resistance of the reinforced concrete pile