EMBEDDED PILE BY ROTATION

摘要

PROBLEM TO BE SOLVED: To provide an embedded pile by rotation capable of improving the bearing strength of the pile and enhancing the workability by increasing the penetration speed of the pile by smoothly pushing and discharging excavated earth to the peripheral side even though the ground has a high N-value. SOLUTION: A tip of a pile main body 3 formed by a pipe 2 is closed by a disc plate 4, a plurality of plate-shaped cutting blades 10, 10 are overlapped and radially jointed to a closing plate 5 in parallel to the disc plate 4, and an angle between a tangent line at an arbitrary point on the side surface at the turning direction side of this cutting blade 10, 10 and a line in the radial direction of the pipe passing this point is 30 deg. to 60 deg. forming a projected curved surface 11 in characteristics.