Patent ID: 7775746
Filing Date: 2010-08-17
Classification: E02D

Abstract:
1. A PHC pile used in a permanent retaining wall structure, comprising: a left connection pipe in the form of a female connection body embedded at a side of the PHC pile; and a right connection pipe in the form of a female connection body embedded at an opposite side of the PHC pile, whereby a connection bar for use in connecting a plurality of PHC piles can be inserted into the left and right connection pipes, wherein each of the left and right connection pipes is in the form of a cylindrical pipe with a cut-away portion at a side thereof, and lateral sides of the cut-away portion are reinforced by a connection pipe-reinforcing material to reinforce the left and right connection pipes, and wherein the left and right connection pipes are closely connected to each other by means of an elongated binding steel member to prevent the connection pipes from coming out from the PHC pile.