Compaction pile capable of eliminating upward pulling friction resistance

The utility model discloses a compaction pile capable of eliminating upward pulling friction resistance, and belongs to the technical field of foundation treatment. The compaction pile comprises a fixed block, a pile pipe, a conical head and an expansion ring, the fixing block is arranged at the top of the pile pipe; the conical head is arranged at the bottom of the pile pipe, and wing protrusionsare arranged on the conical head; the expansion ring is placed on the conical head and located between the bottom of the pile pipe and the wing protrusion. The expansion rings and the wing protrusions are arranged, during pile driving, the expansion rings and the pile pipe are driven into soil together, the diameter of a drilled hole is increased through the expansion rings, the expansion rings can be hung on the wing protrusions when the compaction pile is pulled out, so that the whole compaction pile is not in contact with the wall of the hole, friction force is eliminated, the compaction pile is pulled out more ea