PRESS-IN CAISSON METHOD

PROBLEM TO BE SOLVED: To provide a press-in caisson method capable of shortening a construction period of time wherein the following caisson can be constructed during the press-in work. SOLUTION: The circumferential surface 10a of a caisson 10 is borne on a bearing device 11, and while bearing reaction force on a ground anchor 14, the bearing device 11 is moved downward by a hydraulic jack 12 and a griper rod 13 to press the caisson in the ground. During the press in work of the caisson, the following caisson 10 is constructed on the upper end face of the caisson 10. By the constitution, since the caisson can be pressed to a specific depth within a short period of time, a construction period can be reduced.