The post pressing in pulling removal machine, the saddle which possesses post pressing in manner and

摘要

PROBLEM TO BE SOLVED: To provide a pile press-in and pull-out machine which can press in and pull out a pile and is high in pile press-in construction workability, a pile press-in method for pressing a pile into the ground using the pile press-in and pull-out machine, and a pile pull-out method for pulling out a pile using the pile press-in and pull-out machine.;SOLUTION: In the pile press-in and pull-out machine 1, a chuck 6 which is cylindrical and in which a part of the outer surface is opened along the axial direction is provided with an arc-shaped guide rail 63, a chuck frame 7 has an engaging portion 71 slidably engaged with the guide rail 63, the guide rail 63 is provided with an upper guide rail 63 installed at the upper side and a lower guide rail 63 installed at the lower side, the engaging portion 71 has an upper engaging portion 71 engaged with the upper guide rail 63 and a lower engaging portion 71 engaged with the lower guide rail 63, and the chuck 6 is rotated by sliding the guide rail 63 along the engaging portion 71 by a chuck rotating mechanism 8.;COPYRIGHT: (C)2011,JPO&INPIT