| 摘要 |
PROBLEM TO BE SOLVED: To provide an excavator, a wall pile construction method for easily constructing a wall pile having a continuous expanded width part, and the wall pile. SOLUTION: This excavator 1 has a kelly-bar 16 for rotating with the vertical direction as the axis, a bucket 30 installed on the tip of the kelly-bar 16, rotating in response to rotation of the kelly-bar 16 and freely opening and closing in the radial direction, a stabilizer 50 arranged inside a rectangular excavation hole, journaling the kelly-bar 16 and fixing a position of the kelly-bar 16 by pressing an inner wall surface of the excavation hole, a hydraulic jack 48 capable of moving the kelly-bar 16 in the horizontal direction along the longitudinal direction of the excavation hole, and a kelly-bar attitude control device for holding an attitude in the vertical direction of the kelly-bar 16 when the kelly-bar 16 horizontally moves. COPYRIGHT: (C)2006,JPO&NCIPI
|
