PILE AND PENETRATION METHOD FOR PILE

摘要

PROBLEM TO BE SOLVED: To provide a pile which is made to penetrate smoothly with structural separation for severance of stress by pushing excavated soil into a pile hole wall along with rotation, which reduces the soil discharged onto ground, and whose great bearing capacity can be obtained even in the nonuse of a foot protection liquid. SOLUTION: This pile 1 is composed of a long cylindrical pile body 2 whose lower part has a lower-end expanded part 4, and an inverted cone-shaped head 3 which is mounted on the lower end surface of the pile body 2 via a hollow rod 13 inserted into the pile body 2. A structure of the pile 1 is constituted as follows: a striped steel plate 5 is wound around the outer peripheral surface of the expanded part 4 of the pile body 2; a first nozzle hole 9 is provided along the central axis of the head 3; a plurality of second nozzle holes 10 are provided toward the peripheral wall of the head 3 from the nozzle hole 9; and a check valve 11 is provided in each of the nozzle holes 9 and 10. COPYRIGHT: (C)2004,JPO