Earth auger construction method, that earth auger device and post

摘要

PROBLEM TO BE SOLVED: To provide an earth auger construction method, its earth auger device and a pile, in which an inter-axial distance between the pile and a casing is kept constant, without requiring complication of a chuck and the erection accuracy of the pile is improved and the pile can be erected efficiently. ;SOLUTION: The earth auger device for the earth auger construction method has an engaging member 4 for controlling an inter-axial distance with the pile 3 at a fixed value and drills a ground by pinching by a chuck 6 for a pile press-in pull-out machine, engaging with the pile 3. An engaging member 2 is installed at the front-end position of an auger casing 1, which does not interfere in the chuck 6 when the auger casing 1 is pinched to the chuck 6, by a detachable clamping mechanism such as bolts 5. In the pile 3 for the earth auger construction method, the engaging member 4 is formed in a size capable of passing through the opened opening B of the chuck 6, and is mounted in advance at the front-end position of a pile body 3.;COPYRIGHT: (C)2001,JPO