Post-tensioned unbounded prestressed concrete anti-floating pile

The utility model relates to a post-tensioning unbonded pre-stressed concrete anti-floating pile which belongs to the technical filed of construction foundation projects and solves the technical problem of the prior pre-stressed anti-floating pile has poor crack control effect. The anti-floating pile comprises a pile and at least two bunches of pre-stressed ribs arranged on and coaxial with the pile; the lower end of each bunch of pre-stressed ribs is fixedly anchored in the pile, and is characterized in that the pre-stressed ribs are unbonded stranded steel wires; the pile is divided into at least two sections along the axial direction; the pre-stressed ribs are divided into at least two sets corresponding to the pile sections; and the lower end of each set of the pre-stressed ribs is fixedly anchored in the corresponding segmented pile. The use of the anti-floating pile has good crack control effect and can save integrated cost.