COMPOSITE PILE HAVING WASHER FOR ADVANCEMENT OF COHERENCE BETWEEN PILE AND IMPLANT PILE

摘要

Provided in the present invention is a composite pile comprising: a pile buried in a perforated hole on a ground bed; implant piles mounted on a tip end of the pile, protrudes from the tip end of the pile, and intrudes an original ground bed by penetrating the floor side slime of the penetrated hole on a burial of the pile; and a washer which extends the contact area of implant piles with a pile by being inserted between the pile and implant piles.